CHANGING WHEEL SIZES on my KTM 1290 Super Adventure R // 19" vs 21" wheels for Adventure Bikes
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- Опубликовано: 4 окт 2024
- Ever wonder what happens if you mount a smaller wheels on your adventure bike? I installed a set of 19" front/17" rear wheels instead of the 21" front/18" rear on my KTM 1290 Super Adventure R. Why I did it, what to watch out for and recap of the pros and cons are content of this video
KTM Powerparts spoked wheels article code: 6070990104430
Brembo ORO front article code 78B40887 (you need 2 of them)
Brembo ORO rear article code 78B40833 (you need 1 of them)
Modified ABS rings were purchased from Forum Member Marty
www.ktmforum.e...
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Again, superb English & vocabulary. Well presented & as a 2019 KTM SA S owner, your prior series was very informative....even bits you dropped the bike. Thanks for doing these.
Thank you very much Bruce! Glad you enjoy the content ;-)
Trtr
I went from 21 to 19 wheels on my 1290R to stabilize the bike I lowered the triple tree in the front forks about 1 cm maybe a bit more (also helps with the 21 inch front wheels) and it improved dramatically.
Very interesting Larry - so that means you kept the 18" for the rear?
@@MotoVibes Nope....I changed both wheels. By lowering the front of the bike you add weight and stability. The bike will turn better as well. Try it. You can always put it back. Put the bike on the centerstand (which will be more difficult with smaller wheels) Then loosen the clamps, get on the bike and lightly bounce the front end while adding weight. If you go too far you can put a lever, piece of wood , handle of a hammer, or anything to push the top of the fork back down. Only takes a minute. There are markings around the forks, made for this purpose, to make sure you move both forks the exact same distance.
After you one it 1cm you may want to try 2 cm.
After you move it 1cm........
@@Whipville1963 thank you very much Larry - good tip!
There is no doubt that a 21 inch front wheel is the best option for serious off road riding but few adventure riders will do enough really serious stuff to justify giving up the considerable dynamic advantages of a 19 inch on tarmac. Please consider that every First World Record established by motorcycle riders has been on a machine with a 19 inch front wheel, yet todays showroom salesmen will try to tell you that a 21 inch wheel is essential for adventure riding. Here are just a few examples of 19 inch wheel record holding riders in date order. 1935 Florence Blenkiron and Theresa Wallach, first humans to cross the Sahara on any form of motorised transport (Panther). 1964 Steve McQueen, first Hollywood actor to win a sliver medal at the ISDT (Triumph). 1973 Ted Simon around the world and write a bestseller about it (Triumph). 1980 Elspeth Beard first woman around the world (BMW).1994 Dave Barr, first man around the world with 2 artificial legs (Sportster). 2004 Ewen McGregor and Charlie Boorman on "the long Way Around" (BMW). 2019 Henry Crew youngest person around the world (Ducati). A tiny sample but there are hundreds more unofficial records all achieved with 19 inch front wheels, I may even hold a couple myself such as the 7,500 mile TAT in 27 days.
I am not going to break any world records any time soon but I am on my second 1290 SAR with larger wheels and now enough situations where they made a noticeable difference 😉
I think tire choices are the most obvious and most important reason to go to 19/17. Actually I was very disappointed when I figured that some tires are not even available in 21” tubeless version (e. g. Pirelli Scorpion Rally). I went with Karoo 3s (21/18) again now, although I have not been their biggest fan. And no Reifenfreigabe for them either.
Absolutely - also pure road tires like the Continental Road attack 3 are not available in 21/18
Wow wonderful information. I have just converted my duke 390 2014 model in to a advanture bike. I have converted both my front and rear wheel assembly to 19 and 17 inch spoke wheels. Many more changes I have done. It looks very similar to 1190 advanture yes but engine is 390 only. The inform you shared was very informative and useful.
Thank you very much - glad it was helpful 😉👍
Hey Prashant… would like to ask what are the major changes u felt in handling of bike after swapping front to 19 inches ?
Please if you may share your experience
Glad I found this video.
You and other riders are really making me want to get more into off-road riding.
I can't decided on whether to keep my 2018 SAS and get off-road wheels/tyres or swap it for a slightly newer 1290 SAR and get road tyres for that. I do enjoy road trips with my misses on the back, but have no play for two up off-road 😅
@@simon1290r there is a lot you can do with the S model but I am glad made the switch to the R model- it’s great for pavement too.
@@MotoVibes Yeah I think I would rather have an R that is made of off-road but capable for pavement rather than the S that isn't but could.
I'll keep an eye out for winter deals for a good part ex deal. Be weird saying good bye to a bike I've owned from new and go to a used.
@@simon1290r I know the exact feeling 😉 I also bought mine in the late fall. It’s a good time to buy a bike 😉
Servus, der Spruch war gut, alle möchten die Optik einer Enduro, fahren aber nur auf der Straße. Wie wahr wie wahr.
Aber wer will mit einem 250kg Brocken richtig ins Gelände? Für Feldwege, Matsch und ein paar Hügel reicht ein 19" Vorderrad und ~200mm Federweg alle Mal. Für den Rest gibt's gute Einzylinder die heute auch schon 75PS haben und ~100kg Leichter sind als die großen Reiseenduros.
so isses - wobei der Unterschied R Federung zur S Federung wie Tag und Nacht ist im Gelände - hätte ich nicht gedacht bis ich selbst die R gefahren bin. Es sind weniger die extra 2 cm Federweg als die besseren Komponenten im Fahrwerk, die das Geländefahren deutlich verbessern - die Maschine federt die Unebenheiten souveräner weg und hält das schwere Bike viel ruhiger als die S Version (die quasi vergleichbar ist in Bezug auf das Fahrwerk mit allen anderen großen Reisenduros) - das war der Grund jetzt auf die R zu wechseln (obwohl ich auch in Zukunft noch sehr viel mehr auf der Straße unterwegs sein werde) 😉
The reason the GS doesn’t offer a 21 inch wheel is the telelever suspension. The 19 is simply the biggest wheel that will fit.
Actually that is not quite true. People have modified their GS to run a 21“ in the front but they cannot fit 18“ in the rear so they have to bring the rear suspension up to level the bike.
Ktm Just needs to make a nose on the big adv bike like a GS
The nose works like a spoiler/wings to create more stability at High speeds
Though that acts like a sail in cross-winds making the bike unstable.
The 2021 1290 Super Adventure S is now stable up to full speed (I tested it to 245 km/h) - the high speed instability was an issue of the earlier models.
If you want a bike with a nose, stay with a GS, Suzuki V-Strom, Multistrada etc. They are all look-a-like. A KTM does not need a nose in my opinion. If one primaraly want to travel at High speed, I think one should ask himself if a ‘adventure/allroad’ bike is the right thing to buy.
I actually added a beck to my 1290 Super Adventure R 2021 model and it looks great
@@scottmcvey4449 Beak ???😀
I really enjoy your videos. Keep up! Thanks!
Glad you like them! Thank you very much 😉
Hi Oliver! Again great video. Just one small detail: There are actually slight differences in the frame geometry between the standard GS and the GSA. The steering head angle is steeper on the GSA and the wheelbase is shorter compared to the GS.
Thank you very much- and thanks for the information on the GS vs GSA. I had quick ride on a GS with GSA suspension- I don’t like or need a 30 liter tank so that is a combination I would like too - did not even know this was possible
Never really thought about this topic before. Have no need whatsoever to change wheel diameter. But I do have a great desire to purchase tubeless rims & tires for my 2019 Tiger 800. Triumph did provide tubeless for their 2020 Tiger 900. Much different bike altogether. The goal would be to have 2 sets of rims and tires for street and then off-road. That would be “Grand”. Great topic for the channel. 👍🏼 😎 🇺🇸 🌎 (loads of info in this video, 👍🏼)
Interessting to know that Triumph was still using tubes until 2019! I thought adventure bikes were all on tubeless rims! I guess tubes are good for off-road riding as they give you a chance to repair even bad damages to the rim (if you know how 😉) - something worth learning for me one of these days. Even though I do not change back and forth that many times in year it is nice to have both wheel sets AND you can get the best tires for each and do not have to compromise too much - cheers, Oliver
@@MotoVibes 🤔
I spend a lot of time on dirt roads and for me the biggest difference was that 19” wheels don’t provide anywhere near the front end bite that 21s do, even with the same type of tyres.
@@chrisetchells2803 thank you for sharing your experience. I have since had occasions where the larger front wheel was better for me too
This video couldn’t have come at a better time as I rode my 2017 1290 SA-R from California to Arizona & back just this past weekend mostly along Route 66. I did wonder what it would be like to switch from the 21/18 to 19/17 setup, and if it’s even advisable to do that. At what speed did you find the bike unstable with the smaller wheels? Thanks again for a very informative segment. Cheers!
George - I am glad this was helpful. The bike would get unstable at around 110 mph (180 kph) so well above the speed limit in most countries. cheers, Oliver
@@MotoVibes I’m ok with that. I wouldn’t be comfortable speeding that fast on this particular bike anyway.
Absolutely- it is only an issue for German Autobahn- which is my least favorite type of road to travel on but it does get me to the nicer riding areas in Europe quickly 😎
The Autobahn… still on my bucket list :-)
Thanks for the videos!
I have a question regarding pressure sensors when you change out wheels. Do you have to connect it every time to a ktm-dealers computer to pair them to the bike when you change wheels or do you do it yourself? Grtz.!
You do not have to go to the dealer for this. Just change one wheel - ride with it until the new sensor is recognized (approx 5 km) and the change the second wheel and do the same - it’s a bit of a hassle but it works 😉
Hello again my German friend
I’ve actually got my 1090r booked in for the suspension to be adjusted
Lowering my bike slightly
This will also mean that I will need to get the side stand shortened
This will make you laugh 😆
I treated my self to a pair of adventure 2 boots 👢
This has almost resolved the problem
Who thought that a Cuban heel should sort my problem,
you look as if you’ll soon be back out on the bike 👍🏻
Remember stay safe and you are awesome 🏍👻
😂 I totally get it though - it sucks not beeing able to safely reach the ground. I had my seat lowered on the new R - no review yet because I received it after my crash. The smaller wheels 19/17 were noticable and would actually be enough "lowering" for me. However, I intend to use the larger wheels for off-road use - hence the lower seat for now. Resoling my adventure boots with higher heels is something I did not think of yet 😂 - maybe that is plan B - cheers mate, Oliver
@@MotoVibes Hi Oliver struggle to touch the floor
With both feet
But love this machine 🏍
Can’t wait to see the seat review
Hopefully with you riding that lovely KTM
Stay safe my friend ⚒🏍🙏🏻
Hello my friend
First of all, thank you for the video as it is very well detailed and has been very helpful to me.
I currently have a 2023 Super Adventure R and I want to install the kit you mentioned for 19 and 17 rims. Can you help me with the ABS rings as I can't find a way to acquire them anywhere.
Thank you very much again and greetings from the Canary Islands.
@@Alesper the ABS rings were not easy to find. I found a link on the KTM Forum but it is years ago - there was someone who made these rings in small batches but I cannot even remember the user name in the forum
Late reply to this, I also swapped wheels, 2017 R1200gs went 17 front of the RT1200 Fits straight in, and K1300s 17 rear.
120 70 front, 190 55 rear, what a bike now speed sensors the same between models and used the 320mm Rt disc instead of 305mm gs ones.
Wow - how did the handling change for you? And how did you know that the RT and K wheels would work?! Cheers
Hi apparently a few German dealers, Martin, had tried this conversion, a friend had his older UK 2013lc gs adapted using the Rs front wheel but spacers were needed, I completely buggered up buying the Rt wheel but was so surprised when it fit in. All the rears have the same bolt pattern but use a different offset, was advised the 6" rear from k1300s would be the best, it's a tight fit tbh. Handling is amazing it drops into corners before have even considered trying, and holds tight lines it also helps by dropping it 20/30 mm, clearance is never an issue and I've done 10000 mile in this set up, it's currently on original wheels for the Winter and it's horrible 😀.
@@alanoswin8827 wow. Well thank you for sharing this- I hope this helps others to be a bit adventurous to try out different wheels for themselves - too bad it’s so hard to do many of these mods legally in Germany as we have mandatory technical inspections every 2 years 😬
Awesome video as always, THANKS!!! Though can you help with the link to the modded ABS rings? When I click it I just get to a empty page since I'm not a member of the forum. I really want to test the 19/17 on my 1290 R. What changes did KTN make to your bike regarding the speedo? New ecu map?
Thank you - glad it was useful. Forum member goes under the name Marty (his name is Edy) www.ktmforum.eu/user/6829-marty/ I think he is also on english speaking forums - but just contact him through the forum message system as I did. His website is currently down www.heizkorper-modifications.com/
KTM can change the wheel diameter of the bike - I asked them to change it to 19/17 and with that change the 21/18 wheel set was showing the exact speed (as compared to the my GPS system). Now when I mount the smaller wheel set with the ABS rings the 5% reduction in speed reading makes for a perfect speed reading with the smaller wheel set. considering I had a 10% difference in speed with the stock wheels and stock setting 5% is not much BUT the Edy's ABS rings no more expensive than the original KTM part so might as well use his ;-)
@@MotoVibes Problem is I'm not a forummember and have a hard time with german language ;-), I'm swedish........ When KTM changed the wheel size, was that at the dealership? My is 2017 1290 R, maybe that one can't be changed?
@@spoonvalleyracing He goes under the name of Martyred in the this forum advrider.com/ - it is in English ;-)
The 2007 model is technically exactly like the 2020 - also the 1190 R could also be changed like that. I have no doubt that this is possible but very likely you need your KTM dealership to do it.
@@MotoVibes Thanks for the reply, you are awesome! Great channel!
@@MotoVibes one REALLY wishes that some forums could be in this decade......I'll keep looking
Great review thanks
Thanks for watching! Something different for a change ;-)
@@MotoVibes Different but useful information, like it.
This may sound like a novice question, but one thing I never understood; when changing the front from 21" to 19" everyone seems to also simultaneously change the rear from 18" to 17"... Why? Would it not be ok to ONLY change the front wheel, and leave the 18" rear? In addition to the savings, it would seem the main motivation for changing is the front wheel, and the effect a 21" has on street riding. Seems there would be no need to go to a 17" rear, other than that's the 'standard'... What's the deal? Can I run a 19/18 setup on my bike?
You could just swap the 21” front for a 19” - due to the smaller diameter this would change the bike’s geometry if you do not change the rear too as the front would sit lower now. Alternatively you could adjust the suspension to “level” the bike again. Usually it’s just easier to swap both wheels than tinkering with the suspension 😉
My '23 SAR is unstable at about 100 mph with the 21/18 wheels. I think the knobby tires also have something to do with it. I'm going to try lowering the forks in the triple clamps. I want to get a 19/17 set with sticky street tires, just need to save up some money!
Tires do make a difference but the smaller wheel set may contribute to the high speed instability
Awesome.greetings from India
Greetings back - thanks for watching 😉
This is a great video, I have been thinking about swapping my cast alloy wheels to spoked on my 1090 Adventure (not the R) and I did wonder what I would have to change and if the hub and brakes would all fit without modification. I hoped that if I buy a set of 1090 Adventure R wheels, it will be a straight swap.
Have you had experience with that?
You can mount the larger wheels of the R on your 1090 Adv - you will need the front fender of the R to accommodate the larger front wheel. The side stand may be a bit short but may still work. Your speedometer reading will be off by approximately 5 percent - that’s really it on the hardware. Depending on where you live this modification may require some technical approval to make it street legal. I hope that helps 😉
Did the KTM 1290 R Suspension is fine for high speeds driving ?
And its good like S model Suspension ?
Well, the increased suspension travel is a disadvantage for high speed riding - however, the larger wheel diameter (21/18 inch) of the R provides better stability than the smaller wheels (19/17 inch) - this was quite noticable when I changed to smaller wheels on the R - so in essence: small wheels with R supension is not good for high speed riding 😂
With that said - I can still go 180 km/h with that setup - if it should really bother me I may add a new steering damper to see if this would help.
Now, this may be a little different on the 2021 1290 Super Adventures as the high speed stability has improved a lot - I could take the 2021 S model to top speed with no problems and I would assume that the R model would behave much better at high speeds too now.
In general: if you want to go fast on pavement the S model is the better option - if you want to go fast on dirt the R model will be better.
Hey Oliver! Erstmal super Video!
Wo hast du das mit den Geschwindigkeitsuntschied von Tacho zu reeler Geschwindigkeit einstellen lassen?
Mit freundlichen Grüßen
Pedro
Hi Pedro - die Einstellung hab ich direkt beim Händler machen lassen. Der Tacho ging 10% schneller als die reale Geschwindigkeit nach GPS. Jetzt passt es 100%
Apart from KTM, Honda AT 1100 has 21 inch front wheel.
That is true - However, I would put the Honday African Twin 1100 to the mid-size (700-1100 cc) adventure bike category. The big bore adventure bikes are KTM 1290 SA, BMW 1250 GS, Ducati Multistrada 1260 , Triumph Tiger 1200 , HD Pan America 1250 with engine size all equal or above 1200 cc - none with 21" front wheel except the KTM 1290 SA R modell. But it a way the African Twin 1100 sits between mid-size and big-size adv bikes with regards to engine size but does not compare in the power / torque department to the bigger brothers
Ich habe mich immer noch nicht getraut auf meiner 1290s Stollen aufzuziehen 😅
Ich will einfach die maximale Traktion in den Kurven nicht missen🤔
Im nächsten Jahr auf unserer geplanten Balkan Tour werde ich mich aber doch überwinden und einen Heidenau k60 scout montieren oder zumindest einen Tkc 70🤔
Bleibt nur zu hoffen das die Laufleistung ähnlich gut sein wird, wie bei meiner aktuellen Bereifung ( hinten Pirelli Skorpion Trail 2 und vorne Continental Trail Attack 3)
Damit bin ich letztes Jahr im Balkan auf 12k gekommen 😎
Aber da man es auf großen Touren bekanntlich ruhiger angehen lässt wird es wohl ein Heidenau werden und hoffe auf ähnliche Laufleistung, voll gepackt und mit meiner Freundin hinten drauf 🤔
Die Combo ST2 hinten und vorn den RA3 ist wohl eine ziemliche Gute Mischung aus Performance und Laufleistung. Hatte ich so auch schon mal (unfreiwillig - da es keine anderen Hinterreifen gab) drauf. Selbst mit den Mitas E-07+ war ich erstaunt was da in den Kurven geht aber es braucht ein wenig um vertrauen aufzubauen aber für die Schotterwege war ein 50/50 Reifen wie der Mitas schon ganz gut ;-)
Great video BTW! Also, would like you to "guess" on how much taller would the bike be with 18/21 in comparison with the 17/19? I want to gain about 1" or more as the bike is a bit too tall for me now. Thinking about ordering the same wheels but I want to keep all 3 rotors to save a bit of money. I would guess the hubs have identical tolerances and the rotors will fit just fine. Any ideas? you did not need any different size spacers, right? Thank you, Walter
Thank you Walter. The height difference is about 1 cm - feels like a bit more but not quite 1“ You can use the same rotors and spacers no problem. You may have to do something with the side stand as the bike will be very upright with the stock side stand. I installed the side stand from the S model but that one is a bit too short (but still better than the R side stand) - hope that helps 😉
@@MotoVibes thanks. I might pull the trigger and buy an 1290 SAS or even an S1000XR...will see.....
Hello ..! Do you think that is possible to get the German TÜV for a KTM 1190 S with new 21/17 inch wheels? If yes, how the process looks like? After you change the wheels on the previous KTM 1290 S, dis you face any issue with ABS, TMPS etc ?
Let's start with the last question first - the wheel changes on the 1290 SAS were very easy as I used the same diameter (19/17 inch) for the spoked wheels - no issue with ABS - TMPS will work if you change one wheel at a time (see description of this video ruclips.net/video/XVlloFZiL1c/видео.html)
I managed to get the smaller wheels approved by TÜV for the R - I do not see why this would not be possible putting larger wheels (21/18 inch) on the 1190 S. However, you will need a different front fender to accomodate the larger wheel ( its a bit easier to go smaller as you can keep the old fender if you can live with the slightly larger gap), KTM will have to adjust the speedometer to get TÜV approval.
I am not sure you would get 21/17 approved as this is not a combination KTM provides - also this would change the geometry of you bike (front is too high) which you would have to compensate with different suspension settings either in the front or rear.
I would recommend you have a chat with your KTM dealership and see if they would support you on getting these changes put into the papers as they ususally have a good relationship with their "TÜV / Dekra" guy. hope this helps ;-)
Hast du Erfahrungen mit der GS im Enduro Park? Wie würdest du die GS mit der neuen (!) 1290 R vergleichen? Wäre ein top Video! ;)
Das wäre vielleicht mal eine gute Idee ;-) Im Review für die 2021 1290 SAR hab ich hin und wieder den Vergleich zur GS gezogen ruclips.net/video/6BGIR5pji6o/видео.html Die GS ist aufgrund ihres niedrigen Schwerpunktes sehr gut in den langsamen Passagen zu fahren - besser als jedes andere große Adventure Bike. Selbst für Fahrer die schon ein Weile im Gelände unterwegs sind bleibt das langsame manövrieren die größte Herausforderung und der Anteil am Langsam fahren ist im Gelände deutlich höher als auf der Straße. Wenn es dann schneller wird und das Bike sich selbst stabilisiert fällt der Vorteil des tiefen Schwerpunkts der GS nicht mehr so stark ins Gewicht. Hier punktet die 1290 SAR mit deutlich besserem Fahrwerk und 21/18 Zoll Rädern. Die KTM (die R Version) hat viel mehr Reserven im Fahrwerk als jede andere große Reiseenduro. Bei hohen Geschwindigkeiten im Gelände ist man dann mit der KTM besser aufgehoben - klarer Vorteil aber für die meisten sicherlich nicht so wichtig wie stabiles langsam fahren - man muss ja nicht schnell fahren ;-)
Last but not least:. Auch wenn das kaum einer wahrhaben möchte: die zur Seite stehenden Zylinder des GS Boxers sind natürlich eine Katastrophe im Gelände - selbst mit Sturzbügeln etc. ist es leicht das Bike fahrunfähig zu bekommen (wir bei unserer letzten Tour). cheers, Oliver
@@MotoVibes Vielen Dank für die ausführliche Antwort! :)
Moin,
Wie lief das bei dir mit der Eintragung ? Möchte meine 1090 R auch auf 19 Zoll umbauen, zwecks Körpergröße.
Ab welcher Geschwindigkeit fängt bei dir jetzt das Pendeln an mit den kleineren Rädern ?
Grüße
Für die Eintragung wendest Du Dich am besten an Deinen Händler. Neben den anderen Rädern muss der Tacho bei der Maschine auf die kleinen Räder eingestellt werden - das kann man nicht alleine machen.
Zum Fahrverhalten schau Dir mal dieses Video an ruclips.net/video/jhHcqK-eaNA/видео.html
Are spoke whells go for street use
Absolutely - however cast alloy rims are usually lighter and easier to clean
What about offroad performance? Does 21 inch front make big difference?
The larger wheels are noticeable. Not a crazy big difference but it’s there for off-road riding a long with the downside of having to handle a really tall bike 😉 I was riding through Scotland on my smaller wheels with a street tires and the height difference was immediately apparent. The most important feature of the R (compared to the S) is the suspension - for bad paved roads in Ireland and Scotland an advantage even on pavement
Hi are the 17/19 wheels standard off the shelf ktm sas stock , and they fit straight on the adv R without any modification ,other than speedo calibration .
They are KTM power parts - same wheels as the original 1290 SA (the white one) they will fit the S and the R model - the latter will read faster speeds without calibration and will sit almost upright on the side stand without modification
How's the high speed stability when do conversion for S model witch 17'' rim, is better or make it worst. Thanks
This video may give you the answer ruclips.net/video/jhHcqK-eaNA/видео.html
I have a question....is it possible to put 17" front rims on our ktm ?????
I don’t see why not but I don’t know for sure. You just need to find a fitting wheel for for it though
Wie fährt sich die Super Adventur R eigentlich im vergleich zur S bei zügiger Kurven fahrt? Und tragen die kleineren Räder dort etwas positiv bei?
Damit kommt die R an das handling der S ran - das Fahrwerk lässt sich ebenfalls sportlich einstellen jedoch ist längere federweg der R auf der Straße eher ein Nachteil
My riding a tenere 700 with 21/18 rims. What do u think if I just change the front rim from 21 to 19. Keeping the rear 18”. I only ride on paved road. No off-road.
You could do that but in order to keep the balance of the bike the rear needs to come down or the front needs to go up to account for the smaller front wheel.
@@MotoVibes thanks for the advise. So should get the balance of 19/17 or stock 21/18
@@stevenkang793 yes - that would be better. Also, certain tires are not available for the 21/18 size. The Continental Road Attack 3 and many others that are 100% road tires - the 19/17 is the most common size on adventure bikes and therefore you get the larger tire choice for these sizes.
@@MotoVibes yes. I’m been using Bridgestone A41 for road use.
plz
I wold like to know if the bike stay stable at high speed?
That really depends on this Modell. Some see stable behavior at top speed - other so not (like me). In general the R version is less stable than the S due to the longer suspension travel - however the larger wheels sizes increase stability at higher speeds. I found the 2021 to perform better at high speeds
you are totally neglecting the effects on weight balance between the front and the rear
Thank you for your comment Francesco - could you explain a bit what you mean? I am not sure I understand what you mean by neglecting the effects on weight balance - thank you, Oliver
@@MotoVibes 21-18=3. 19-17=2. In the 21-18 configuration, the front axle is about 1/2" higher, so weight distriubution is different because the front end is lighter and the center of mass is shifted slightly to the rear. I mean: it is not only matter of wheel size, but it is also about the weight distribution and bike attitude(orientation). BTW I enjoyed your vid!
@@FrancescoCaruso79 Very Interesting point Francesco that I have not considered - I am sure that does make a difference - I guess lowering the front forks or bringing up the rear shock would be good counter measures. cheers, Oliver
As a sports bike and super moto rider I can confirm that even small changes in ride height front or rear changes the balance and handling characteristics. Putting in a smaller front wheel would be like jacking up the rear pre-load, increasing steering head angle. This will make the bike turn quicker but feel more unstable. To correct this you might want to drop the firs down through the triple clamps by 25mm. I’m curious, I love the look of the R but are put off by the 21”. On fast twisty roads does it compromise your cornering ability / speed?
@@jonathanbrum5999 The bike still handles pretty well but I have not yet pushed it in the Alpes with the larger wheels yet. I did put the larger wheels (and kickstand) on the bike but as winter is around the corner I will likely not ride very often anymore until spring next year.
Adv cattegory do not exist
Goran - i am sorry - I do not understand your comment - could you explain what you mean ?
How did you get ktm to correct your speed?
Yes I did - needs to be done by them
Moin,
Wie lief das bei dir mit der Eintragung ? Möchte meine 1090 R auch auf 19 Zoll umbauen, zwecks Körpergröße.
Ab welcher Geschwindigkeit fängt bei dir jetzt das Pendeln an mit den kleineren Rädern ?
Grüße
Für die Eintragung wendest Du Dich am besten an Deinen Händler. Neben den anderen Rädern muss der Tacho bei der Maschine auf die kleinen Räder eingestellt werden - das kann man nicht alleine machen.
Zum Fahrverhalten schau Dir mal dieses Video an ruclips.net/video/jhHcqK-eaNA/видео.html