I added a cheap old set of Fox 40's from around 2010 to my bike, replacing the Killah MTB forks it came with. HUGE difference even on 2010 forks. Just make sure the steering tube is no shorter that 17.5cm, then you can use a direct mount stem. Needs to be longer for normal stem. You can also buy a new full length steerer tube, cheap from China and press it in easily if you have access to a press or know someone with a car workshop. I hope this helps you :)
Nice job with the information you put together, a few points we have learned you might want to consider. 1) the lower bearing on SurRon is a motorcycle roller bearing and much stronger than MTB headset bearings and not recommend to replace. The upper can be replaced with a cane creek to reduce head tube length which is needed for many forks. 2) lower bearing comes off pretty easy on most forks especially DNM 3) inverted forks have the advantage of less unsprung weight and all MX bikes use them, the also tend to have less flex 4) larger diameter Stanchion tubes does not necessarily equal more strength it’s the overall engineering that determines it. 5) fox and marzocchi unfortunately do not support the SurRon market and will void your warranty if they know it was installed on SurRon. 6) 21” front needs an 18” rear to match the traction which is an expensive combo and every person I’ve ever seen do that immediately wants power upgrades to hide the huge weight gain of 18/21 so be prepared to spend $1000’s going down that road. For a wallet friendly upgrade with better performance the 16/19 is a better option if you are staying on stock power. Nice green bike in the thumbnail image looks familiar :)
Thank you for the tips! Some of these will certainly be going into my fork swap video. Seems like you know your way around the Sur Ron. Can you get away with smaller stanchions on an inverted fork without sacrificing strength?
You are very fortunate. I wished I bought one a couple months ago when I was considering it. Luckily I have a preorder from Jenson and they took my money so now it's just a waiting game
Depends hugely on how you ride if you need to replace the forks with something else. I dont do jumps and ride in the forest. I weigh about 200 pounds and have never bottomed out the DNM forks. Ofcourse the comfort will be improved with more expensive forks but for me there is no need.
the DNM that came with the sur ron back in 2020 was pretty good. its a DNM USD-8S and i think they upgraded them for the sur ron because ive seen a aftermarket DNM usd-8s and they are not working AT ALL like the one i have on my sur ron. they probably upgraded the coil or something to fit the weight of the sur ron.
I made this video before I was aware of that KKE fork. I mention it in my Sur Ron buyers guide video if you want to check that out. But there isn't a lot of information about it out there.
I'm building a Talaria MX4 SM with 17"X2.50 custom wheels. Not that I need a new fork but what would be a good choice for street riding? Perhaps the Fox 40? I think SuRonster uses a Marzocchi Bomber.
Are the bomber 58's longer or shorter than the stock forks? If so will it cause any handling issues like with casting changes to the steering. It looks like it's 6" shorter?
From what little I can find on the spec sheets, it looks like the bomber 58 is about 1cm longer. Only way to really know is to measure them which I will do in a future video when I receive my fork. I intend to get a larger front wheel and possibly a progressive rear suspension link if needed
@@aaronmedvedskiy1303 yeah I saw one with a Yamaha fork for sale on pink bike last week. I just checked out your video on it. Pretty impressive. I'm going with the normy plug and play fork haha
@@aaronmedvedskiy1303 definitely. I saw you were talking about the extra weight in your video. Mountain bike forks are borderline not good enough for the Sur Ron. That's why I want those 40mm stanchions
@@mbzoomer3799 well I jnow it won't be double the stock range with the bac4000 and 54tooth sprocket and heavier wheels and tires. I hoping at least 50 Mike's depending how I ride,tires are duel sport
I don't have part numbers for anything since a lot was locally sourced, but here's what you need: *Fox 40 fork (27.5in model) or other compatible fork *Headset spacers, 1 and 1/4 inch *Fork grease It's a pretty straightforward job. You just take the old fork off and you can reuse some of the spacers and steerer tube cap. The new fork should come with everything you need. If you purchase a used fork, then you will probably need a new triple crown and steerer tube. Check out this video for how to do that: ruclips.net/video/YslROHKUtTA/видео.html it's also got links to the triple crown assembly I used in the description.
I added a cheap old set of Fox 40's from around 2010 to my bike, replacing the Killah MTB forks it came with. HUGE difference even on 2010 forks.
Just make sure the steering tube is no shorter that 17.5cm, then you can use a direct mount stem. Needs to be longer for normal stem.
You can also buy a new full length steerer tube, cheap from China and press it in easily if you have access to a press or know someone with a car workshop.
I hope this helps you :)
How were you able to find a used fork with a steerer tube that long? I've been looking and cant find anything longer than 6 inches
Nice job with the information you put together, a few points we have learned you might want to consider.
1) the lower bearing on SurRon is a motorcycle roller bearing and much stronger than MTB headset bearings and not recommend to replace. The upper can be replaced with a cane creek to reduce head tube length which is needed for many forks.
2) lower bearing comes off pretty easy on most forks especially DNM
3) inverted forks have the advantage of less unsprung weight and all MX bikes use them, the also tend to have less flex
4) larger diameter Stanchion tubes does not necessarily equal more strength it’s the overall engineering that determines it.
5) fox and marzocchi unfortunately do not support the SurRon market and will void your warranty if they know it was installed on SurRon.
6) 21” front needs an 18” rear to match the traction which is an expensive combo and every person I’ve ever seen do that immediately wants power upgrades to hide the huge weight gain of 18/21 so be prepared to spend $1000’s going down that road. For a wallet friendly upgrade with better performance the 16/19 is a better option if you are staying on stock power.
Nice green bike in the thumbnail image looks familiar :)
Thank you for the tips! Some of these will certainly be going into my fork swap video. Seems like you know your way around the Sur Ron. Can you get away with smaller stanchions on an inverted fork without sacrificing strength?
Yes sir ,i did the 21 18 and yes $1100 waiting for my 58s
Best Surron Fork upgrade vid on youtube. I watched em all..
Feel so blessed to have picked up my Marzocchi’s when I did 🙃 loved this video bro! Surron chat is my favourite
You are very fortunate. I wished I bought one a couple months ago when I was considering it. Luckily I have a preorder from Jenson and they took my money so now it's just a waiting game
i used a set of lowered cr 125 forks and am now currently putting a set of kx 100 forks on my sur ron.
you can use yz85 dirtbike forks
Depends hugely on how you ride if you need to replace the forks with something else. I dont do jumps and ride in the forest. I weigh about 200 pounds and have never bottomed out the DNM forks.
Ofcourse the comfort will be improved with more expensive forks but for me there is no need.
the DNM that came with the sur ron back in 2020 was pretty good. its a DNM USD-8S and i think they upgraded them for the sur ron because ive seen a aftermarket DNM usd-8s and they are not working AT ALL like the one i have on my sur ron. they probably upgraded the coil or something to fit the weight of the sur ron.
You didn’t talk about the kke fork. Why is there little to no information about the new fork that comes on them
I made this video before I was aware of that KKE fork. I mention it in my Sur Ron buyers guide video if you want to check that out. But there isn't a lot of information about it out there.
I'm building a Talaria MX4 SM with 17"X2.50 custom wheels. Not that I need a new fork but what would be a good choice for street riding? Perhaps the Fox 40? I think SuRonster uses a Marzocchi Bomber.
Ktm 85 used forks best option unless ur going to spend heaps
Fox 40s are weight reduction how can u say they support u the weight 6lbs and stock forks weight 9 lbs ? Seen tones snapp
Are the bomber 58's longer or shorter than the stock forks? If so will it cause any handling issues like with casting changes to the steering. It looks like it's 6" shorter?
From what little I can find on the spec sheets, it looks like the bomber 58 is about 1cm longer. Only way to really know is to measure them which I will do in a future video when I receive my fork. I intend to get a larger front wheel and possibly a progressive rear suspension link if needed
😂😂 (Yamaha) yz85 Front end on a surron was my surron!!
Really?!? The one you sold on pink bike?
@@mbzoomer3799 ? No I guess I’m not the one I guess someone else did the same thing that I did too.
@@aaronmedvedskiy1303 yeah I saw one with a Yamaha fork for sale on pink bike last week. I just checked out your video on it. Pretty impressive. I'm going with the normy plug and play fork haha
@@mbzoomer3799 Smart but there’s pros and cons for both forks
@@aaronmedvedskiy1303 definitely. I saw you were talking about the extra weight in your video. Mountain bike forks are borderline not good enough for the Sur Ron. That's why I want those 40mm stanchions
I also got a bac4000 and a 60v 60ah chibattery so yeah the upgrades seem to need each other lol
Lmk what kind of range you get off that battery
@@mbzoomer3799 well I jnow it won't be double the stock range with the bac4000 and 54tooth sprocket and heavier wheels and tires. I hoping at least 50 Mike's depending how I ride,tires are duel sport
@@bigtruccon2wheels617 that's about what I would guess too. Should be interesting to test
How is the chai battery working out?
@@jimlahey5354 no complaints here,no range anxiety, has never been under 20% after riding
Mazzocchi bombers are fox 40s without the damperners which and the best part of the fox 40s as u can set them to a higher weight ? 😂😂
Any chance you could give a detailed list of all part(s)/part numbers for needed to do this fork upgrade? Thanks!
I don't have part numbers for anything since a lot was locally sourced, but here's what you need:
*Fox 40 fork (27.5in model) or other compatible fork
*Headset spacers, 1 and 1/4 inch
*Fork grease
It's a pretty straightforward job. You just take the old fork off and you can reuse some of the spacers and steerer tube cap. The new fork should come with everything you need.
If you purchase a used fork, then you will probably need a new triple crown and steerer tube. Check out this video for how to do that: ruclips.net/video/YslROHKUtTA/видео.html it's also got links to the triple crown assembly I used in the description.
@@mbzoomer3799 Thanks.
Ktm 65 forks 👍
85*
Are stock surron wheels boost or none boost?? I know they’re a 20mm axel but is it 200x100 or 200x110
Boost
Marzocchi Super Monster T
That useful
There saying Jan 17 for red now,just found out yesterday
Yo man I just got notice jenson shipped them bombers today
I can sell you a KKE just removed from my 2022 LBX
Kke is better than the Dnm?