How to make your pit bike faster in less than 10 minutes (Hits 65mph) INSANE
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- Опубликовано: 2 авг 2024
- Such a simple and easy to fit mod for your pit bike to give you higher top speed!
DONT CLICK THIS LINK: bit.ly/3qzi8CB
Link for front sprocket I used - ebay.us/koyJVX
Link for Speedometer - ebay.us/SkYCHX
Link for Mirror Set - amzn.to/3punYDy
In this how to video I experiment with changing the front sprocket on the pit bike from a 15 tooth to a 17 tooth to give a lower cruising rpm for less noise better fuel economy and higher top speed explaining how to do it along the way.
In the end it gave me a new top speed of 65mph up from the old 59mph which is useful for dual carriageways or motorways if I ever need to use them.
Any questions you need answered or any advice please feel free to ask and I will help as best as possible.
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Great video! I've been looking at getting a different sprocket set up to make my bike a little faster and I would be interested to see you go 75mph.
Thanks. I have a different rear sprocket on its way which should be here in the next week or 2. Once it arrives I’ll get it on and see what speed I can get. I’ll have the details of the sprockets I used in the video for you too.
@@DarrenMcKinney1 Okay that sounds good can't wait to see the video.
@@DarrenMcKinney1 what size sprockets are you using now? I have put mine on roads and upgraded the front 15t to a 17t trying it out later would love to find any ways of making this better for the roads mine is the 10ten 125 big wheel crf110 style I'm sure I'm supposed to use bigger sprockets anyways using big wheels!
@@mcrappergee9427 I’m using the one in the video, the 17 tooth one. It leaves it a lot better for the road so it’s not revving the head off itself all the time. Have a smaller one for the rear I might try it some time but the next upgrade I would like to do is put supermoto type tyres on it for a bit less vibration on the road
You're awesome!
Nice man, goes faster than my CRF150f haha! Just sprockets, im buying a SSR189 soon I need to know! 😂
lol. Yeah just the front sprocket change. I have a smaller rear sprocket to go onto it too to see what it does. Hopefully doesnt kill power too much
I have the same bike but 140 tho , love the vids , I have a few sprockets, think I’m gonna have a play ! Lol
Thanks very much Marc. Yeah have a play around with them. I’m hopefully gona get a different sprocket on the back of mine this weekend weather permitting to see if I can break 75 mph! Lol
15 and 37 works good for fast and power. Or try 15 and 34.
Where did you buy the sprocket
Hi i have a m2r rf160 im currently setting up the vm26 carb up i just wanted to know what your set up is? Also what main jet size are you running thanks
Hi Liam, I just have the standard size jet in mine. Not sure what size it is as I never had it out but I will check it out later for you.
The idle mixture down the front of the car I have at around 1 and 3/4 to 2 turns. This randomly needs adjusted with changes in temp etc.
I think the clip on my main jet is one nick above the centre slot. With my bike this leaves it a slight bit lean but it starts a lot easier got this way as if I put it into the middle slot it’s quite hard to start hot.
But just remember all the bikes react a little different and you may need to experiment a little
Nice :)
I got bigwheel rf125 I’m gonna get same front sprocket as in this video , do you know if I should change my back one aswell? Or is front enough
Hi Lee, no I would just stick to the front sprocket to see how it effects it as you dont want to go up too much gearing and lose power
How can I drive the dirt bike legally and how to get number plates
What front and sprocket size is best for 125cc pit bike using mainly on roads
I wouldn’t go too mad for a 125 with changing sizes. I would go up maybe 2 teeth in the front or maybe down about 6 or 7 in the rear and that should give you enough so it’s not revving the head off itself
Would you need to change the sprockets again to fit supermoto wheels or would it work just the same as the current off road ones and would the supermoto wheels give you more speed??
Great vid BTW🔥🔥🔥
Thanks. The supermoto wheels should have the same hub design when your ordering them so no you can still use your own sprockets. Also as long as you put on the same size of wheel it won’t affect the top speed or acceleration either.
@@DarrenMcKinney1 so if I was to use the tuff mag 12" supermoto wheels will they loose me speed instead of increasing and would it affect the bike being road legal
@@oh_magma if your changing to smaller wheels you will better acceleration but less top speed. As long as the tyres don’t say not for highway use on them they will be ok for road use
@@DarrenMcKinney1 great thanks for the information your very helpful appreciate it bud keep up the good work 🔥🔥🔥
Does it loose a lot of top end when you put a bigger sprocket on the front
It looses power on moving off
How do you improve the top speed to 75mph? Would replacing the engine with a 300cc engine help?
You wouldn’t even have to go that big. The 190cc 5 speed engine would be able to do it no problem.
Although I will be changing my rear sprocket soon to see what extra gains this will give. Also normal smoother tyres would help as you can feel these knobbly ones holding her back a bit
I have now 13/37 is this good and does it have more topspeed or power this way
I liked putting the new sprocket on my bike as it gives me more top speed and doesn’t affect the power too much. I need the higher top speed as I drive it on the road
i have a crf 50 dat i 125 swapped whats the best sprocket size for mo power
If you are looking more power and aren’t worried about top speed the count the teeth on you rear sprocket and then order one with about 3 or more teeth than that. This will give you better acceleration
you think this would work on a kx110f ive seen i guy with it on but idk if itll work
Yeah Owen it will work on any bike, just make sure to get the right fitment of sprocket and the key is not to go up too big a jump as you dont want to sacrifice too much acceleration for top speed
What sprocket would I use to make it more torque to wheelie ?
If you want more low down torque you can either make your front sprocket smaller or make your back sprocket bigger. One tooth on the front sprocket will generally give you about the equivalent of 3 teeth in the rear sprocket of a difference. I hope this helps you out
Is 15/32 good for my ttr90? I just bent my front sprocket today. I was running 14t, top speed 42
Yeah it would do the job and won’t make a massive difference to speed or kill the power too much. I would think your new top speed with that one tooth of difference would be around 46 or 47 mph
What M2R you got? I got a KFX 125, quality pit bikes
Yeah there not decent bikes. I have the RF160 model
what if you let the 15 front and put 37 rear??
That won’t give you as much of a change unfortunately. You will only gain another 3 or 4 mph that way
Hi mate did u ever change the rear sprocket on this bike? If so what size and what difference did it make with both changed?
Hi Josh yes I did change the rear sprocket on it before but I went too far and put the smallest one available on it which I wouldn't recommend as it was so high geared it couldn't take 4th without dining down. Just check which one is one yours and go down no more than 3 teeth to be safe
@@DarrenMcKinney1 cheers for replying mate, I’ve got same bike as you it came with same sprockets I’ve changed the front to 17 was gonna change the back to 37 do you think this will work?
@@MXJS160 yeah that should be fine. I wouldn't go any more than that.
Does this apply for the apollo 007 125cc
Also what do I need exactly to make mine road legal? I see you did that
Get a license then buy a pit bike then register it and then keep paying tax and that's it
Would this fit on a stomp 110 wpb
Hi, sorry for the slow reply. I checked my brothers m2r 110 cc bike and it fits it ok but just to be safe if you would like to go to the product link and check the second picture and use the size guide just to measure your sprocket to be safe and guarantee it will fit yours as with different ages of bikes it can be hard to tell which one will fit. Just check it says on your sprocket 428 as well and this will confirm it’s the same chain profile. I hope this helps. Thanks
bigger front sprocket makes first gear longer right?
Yeah it makes all the gears longer
Would it work on my 125cc Apollo 2020
Most of the bikes are the same fitment but unfortunately you’ll have to check the sizes on your bike to make sure they are the same and check it has the 428 size chain like mine as some have a 420 profile chain. It will say this number on the chain somewhere and it the distance between the 2 bolt holes on the sprocket that have to be checked.
are pitbikes good built/reliable as dirtbikes ppl say there not i have had a few and all broke within month or so rn im riding 140cc stomp just needs some work done but idk if i shoul;d switch to a dirtbike
For ultimate reliability then yes a branded dirt bike like Suzuki, Yamaha or Honda would be the best option. Cheap pit bikes won’t be overly long lasting or reliable although the stomp should be fairly decent. Also budget comes into the mix as well obviously
how long have u had ur m2r 160cc @@DarrenMcKinney1
Running 34/19 will do 68 I’m keeping up with cr125 on a four stroke 125
Is it a Japanese 4 stroke or china 4 stroke ?
Yea is it a lifan style 125 pit bike or?
17 and 35 good?
Depending on if your using the bike for a lot of road use and it has plenty of power to handle the extra gearing then it would be fine but if your only really using it for off road and it’s less than 160cc I would really recommend that high of gearing. Maybe 15 and 35 at most
What's your back sprocket size
It’s the standard 41 tooth sprocket fitted on the back although I have a 37 tooth one here which I am going to try on soon
What size was standard and what size changes did you find better? Cheers
Hi, the standard one was the 15 tooth sprocket and the replacement one was 17 tooth. I like the 17tooth one better for on road use as it gives a better cruising speed with lower revs so it’s more enjoyable to ride.
@@DarrenMcKinney1 I bought the 17t trying it out from the 15t standard today I just had to pop out for a tool to help me custom fit the cover there it two support brackets on the inside of the cover plate that needs filing down so I have to use a drill sanding tool then ready to go!
@@mcrappergee9427 hopefully all goes well. Really good mod to do on these bikes
@@DarrenMcKinney1 hopefully because I find these 125s quite pants thinking about upgrading to a yx140 with a smaller flywheel big valve head and a z40 cam next
@@mcrappergee9427 😎 cool
I’d argue you want low end speed rather than top end at least on a track anyway. Decent for the rd though.
No I agree with you that you would definitely want low end for the track but I only use mine on the road so I want a better cruising speed.
Setting myself a little challenge in the future I want to see if I can get it to do 80mph!
Would it fit on a apollo 125cc
It does fit most pit bikes but unfortunately some have different sizes so if you click on the product link, in the description it will give you the size of the sprocket which you will have to double check against your own. It’s easy enough to do and saves you getting the wrong one. I hope this helps
Anyone know anything about jetting for a lifan 140? With a vm22 knockoff mikuni carb
It’s not easy to tell with jets unless you really try them in the bike and see how it performs. I can’t see it being any bigger than a 100 main jet anyway as that’s what I had in my 160 when it was standard and it went well. I think it was a 32 idle jet too
@@DarrenMcKinney1 any recommendations on sprocket ratios? I think im running 17t front and 42 or 48t rear
@@UnleashedSkaters what are your original sprocket sizes and what kind of riding do you intend to use the bike for?
@@DarrenMcKinney1 bought the bike used, i think it had a 15 or 14t front sprocket and the rear has always been the same.
Mostly ride trails and do little jumps, once in awhile we ride on the streets in our neighborhood
@@UnleashedSkaters ok. I would try just changing the front sprocket for a while. This should give u a nice increase in speed without sacrificing acceleration too much. Sometimes gearing them up too much can mean the bike hasn’t the power to make use of it so just try one at a time and see how you like it.
Can you put the back sprocket on the front and front on the back? California USA
No that definitely wouldn’t be possible. Biggest you can get in the front seems to be 18 teeth and smallest on the back is 30 teeth
@@DarrenMcKinney1 If I want to increase speed on like a 140-160cc pit bike how many teeth sprocket on the back and on the front am I best off doing! Because I've read somewhere that bigger back sprocket and smaller front increases your acceleration and slows your top speed and vice versa increases your top speed and decreases your acceleration! But could please tell me which is best teeth to go on for top speed please mate ! Would very much appreciate it! Thanks 👍
@@kieranmurphy7659 I have found Kieran from messing about with different gearing that I would just put the biggest sprocket on the front you can. This way it gives you a bit more top speed but not so much that the bike doesn’t have enough power to Rev out full. If you go too high gearing I’ve found that you start to struggle with power and end up with a lower top speed because of that. I hope this helps
So I'd probably better off going 18 front 39 back then ! Anyway thanks alot for your response very much appreciated I've subscribed to your channel so I can learn a few things or 2 I'm pretty good with bikes myself bit could do with learning more tbf but anyway nice 1 pal 😉👍
Will a bigger or smaller rear sprocket make it faster or slower?
Smaller on the read should make it faster at top end i’m pretty sure, but don’t go too small or you won’t have any lower down power. I think ahah don’t quote me on this 👍🏼👍🏼
@@kylebell6358 if I do 1 or 2 teeth bigger on the front & 1 lower on the back will it even out & give abit if both?
@@G6Emaniac hi Caleb. Kyle is right in what he’s saying. Smaller in the rear or bigger in the front will give more top speed but less low down power. Going up one front tooth is roughly the same as going down 3 on the rear due to the ratios. I would try 2 teeth more on the front or between 3-6 down on the rear but just try them one at a time incase it’s makes the bike easy stalled etc
@@DarrenMcKinney1 will do thanks for the help.
What speedometer are you running?
I’m using a XOSS unit. The one I’m using has a link in the description below. I like it as it was well priced and doesn’t require any wiring or calibration and is rechargeable.
@@DarrenMcKinney1 cheers mate
Just another question is 18/40 good?
That’s pretty close to my ratio so it will cut down acceleration a little but will give you around about 65-70 mph flat out so will be a good ratio for use on the road
@@DarrenMcKinney1 but can i still like ride good on sand or in like a field? Because i will ride it half road and half like dirt/sand
@@scholtenkeal3571 yes you can. It didn’t make a crazy big difference to my bike so that it completely destroyed low end power, it just lowered the revs a bit at cruising speeds. This ratio should be fine for off road use too I just wouldn’t go too much more
@@DarrenMcKinney1 oké thx i thought it was good too because mine had 13/40 first and i didnt like it and it had to much power at the bottem
Wots the gap size inbetween the sprocket mate
Between the sprocket and the engine casing you mean? It’s not very a very big gap anyway but I will measure it and get back to you
No the hole in the sprocket is it 17 or 20 mm
@@georgestewart6744 it’s 17mm
I just ordered a 428 18 tooth 17mm off ebay
hey, would this work on yamaha ttr125?
Yes this will work on any bike. Just check the size and fitment of the sprocket you need and you will notice quite a good difference
is 17 and 33 good?
No not really unless you have a lot of power. I tried a 17 and 30 on it and it left it so high geared that I could do 67mph in 3rd and it couldn’t take 4th without dying down. Have a bigger carb on it now to try and make use of this gearing but just trying to get it jetted and find tuned. I’ll keep everyone posted on that
@@DarrenMcKinney1 I'm looking forward to seeing the results of a 17/30 gearing and a bigger carb to up the power.. curious
What engine size do you run?
I am running the yx160 engine. It has enough power for the road and accelerates reasonably well up to around 60mph and then it starts to die off. Good bottom end power for cruising too which I like
My stock gpx 140cc tops out at 64mph
Is this a m2r rf125 s2 and is 125cc
No it’s the 160 cc version
i have a 36 to 15😭
How come Ur not using the clutch
Hi William. You don’t need to use the clutch on the way up the gears as long as you unload the engine by letting off the throttle briefly and on the way down you do it by letting off the throttle then quickly give it a small blip of the throttle to match revs to the increased engine speed and that’s it. By doing this you match the engine and gearbox speed and is completely harmless to the gearbox. I will have a video on it coming shortly including how to make it sound like a quick shifter.
@@DarrenMcKinney1 did you make the video about shifting ? I have no issues up shifting with or without the clutch, but not to good at down shifting. When down shifting for a corner it judders when I release the clutch
@@therathunter1814 sorry no not yet. If it stays dry here I will try and get a video made on it tomorrow for you
@@DarrenMcKinney1 thanks
z155?
No this is the RF160 model with the yx160 engine
Idk how your hitting 65,
I 19tooth front and 42rear, on my 140cc 14/17 and fastest I've gone is 53mph but in all fairness that was off road on Sandy terrain, so on a straight road I can go faster but I didn't think it was that much faster, according to this my bike should be able to do 71mph
Hi, this is definitely an accurate speed as this is a GPS device I use and I have checked it against 3 different cars and the sat nav on my phone and it is a very accurate device for distance and speed. Remember different bikes will have different gear ratios in the gear box and also even tyre sizes will affect speed. I would recommend one of those XOSS units as they are brilliant and have a very good battery life.
I hope this helps and thanks for watching
@@DarrenMcKinney1 okay, I do believe you, I just gotta get my bike on straight road to find out what I can do, thank you
@@DarrenMcKinney1 just thought about this, my bike may not have enough power to take advantage of a 19 tooth front, I'll report back in a couple of weeks
@@myass5964 ok keep me posted
go down in the rear im gotta yx 150 lifan on my coolster i have a 19/37 im bout 170 my top speed is 60 but it bogs out full open on 4
What's the craic with the link in the description that says 'do not click' ?
Dead website ? Wind up ? Reverse psychology ? Inquiring minds want to know ! 😂
Lol. Yeah it’s a bit of reverse psychology. It’s a link which takes you to the subscribe button as I’m trying hard to build up subscribers to hit that 1000 subscriber mark to make it easier to make more of these videos. Apparently a lot of big RUclipsrs used this technique
@@DarrenMcKinney1 wiley dibhil! Hahaha
Wot ccengine do you have I hmgot a 160 but been looking at 190 engines
This bike has the YX160 engine in it
What is the cc
Hi, this bike is a 160cc
?
Why didn’t I press the clutch when u were shifting
It is not necessary to use the clutch on upshifts as long as you let off the throttle for the split second you change gear and on the way down you just blip the throttle the second you change gear.
If you get some practice at it you will see what I mean and it can make riding more enjoyable too. Let me know how you get on with it if you are going to give it a try
@UCrTvwpO2yH4vRKdME3yTFGQ and that kids is how u fuck ur engine. So ur saying u don’t need a clutch ? So why was it invented? 😂
@@frankw8315 he's right tho especially going up in gear you do not need the clutch just let off the throttle, if you did any research instead of just assuming you'd know this, so the uploader is 100% correct
@@frankw8315 the 160 version they come with quick shift feature so you momenteraly press kill switch as you change gear so there's no need for clutch on the up shifts when you going flat out😂 unless your riding slowly through the gear then you have to use the clutch
Thats odd,
My M2R Kmxr140 does 65mph with original gearing screaming its tits off. I rekon if i swaped the front an rear sprocket i could get it to do 75mph easy, butit would drastically change the acceleration and torque.
All depends what you use the bike for, i race my mates around tracks and jumps with mostly corners, so i need the torque and acceleration, if i wanted it for every day road use, id change the gearing to get a faster top end for duel carriageways and main roads.
Biggup 👊
Yes, I have a Kmxr160 and they do seem to Rev higher and have different gearing than the rf160’s. The rf160 would be more powerful low in the Rev range where I find the Kmxr160 would pull better higher up in the Rev range. I like the Kmxr better for the off road stuff as it just seems better suited to
Bollocks
@@danlingley1729
Not bollox.
I actually clocked it at 67mph but rounded it off to 65.
Sorry if your bag of shit hardly moves, but i can assure you my kmxr140 does 65mph while driving past giving you the finger.
🖕
@@anonymous2065 🤣 till you prove it being clocked it’s bollox pal
And mine ain’t slow pal believe me
@@danlingley1729
Grow up little boy.
Prove you're allowed out to play with your little boyfriends after dark??.
If i was gonna make it up then i wouldn't of said it goes 65mph would i??,
And why don't you think a 140 will do that speed anyway?,
Its not especially fast is it ya melt.
Most 140s will do between 55-65mph.
With different gearing they will do 80mph easy, so its baffling me why you think it wont do a measly 65mph????.
Is it because you used to ya roadman mates 50cc moped struggling to hit 30mph down a hill with the wind behind him?,
#StayInSchool or end up dumber than @Dan Lingley
Less than 5mph increase with less power ? 59.7 to 64.3.......4.4mph increase
Well the power is exactly the same no matter what sproket you put on it. It will reduce the torque.
Fit road tyres to it and it’ll be quicker
Yeah Dan I agree there. You can feel the resistance of the rough tyres even when pushing it. They will be fitted soon as the budget allows
@@DarrenMcKinney1 it’ll be so much smoother and quicker it’ll be unreal it be like a totally different bike
that thing coudve hit 70
Oh! It's the European less than 10minutes.
Why build and beat a smaller bike to death instead of just buying and cruising one made to handle the highway? Then save the pit bikes for thrashing the dirt and jumps.
I can’t afford to buy another bike so I have to stick to this one. Plus I think it’s more fun to try and make something do more than it was ever intended to do. I have done some other mods to this bike that I haven’t recorded since and had it doing 75mph
Some people don’t have 4,500 laying around and they go up to 10,000 that’s a lot of money to give up especially on something that not going to make you more money unless you filthy. And want a toy just for the fucks also they did more fun if you can make your faster “mini bike gang”
See below. Cause it's fun to tinker with it.