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OSET Electric Trials Bikes

  1. Started by chad_gates,

    Hello, Just fired up the other 20 and... 1. No battery lights showing, but going like a rocket 2. Rear tyre keeps coming off the rim (!) Anyone experienced same? Cheers CG

    • 3 replies
    • 1.9k views
  2. Started by juanroberts,

    I had Paul Master replicate his build on my 20.0 and it rides like a dream now. I had bought a first generation 20.0 that was unrideable. I even got a new controller from OSET and it helped, but still was not any fun. Paul is known in our trials club as the EcoTrials guy because he made an electric trials bike from a Montesa a long, long time ago. Then he did it with a 20.0 about 2-3 years ago. He uses an Alltrax controller that can manage huge amounts of current (designed for a golf cart) and is programable, in tandem with a Magura throttle. The mapping is so tame and predictable off the bottom that I can perfectly control and balance on turns now, and it ramps up to…

  3. Started by daz_uk,

    Hope you can help. I have a 48v 20" that has 1 damaged battery. I want to charge the other three, can this be done on the bike with the 48v charger or is that a bad idea? If I get the three charged will it run (even if at lower power) just to show the motor works before I sell it? Thanks

    • 2 replies
    • 1.9k views
  4. Started by Oset sol,

    Hi my sons oset 20.0 lite is not holding charge, showing fully charged then as soon as he sets off dropping to empty on indicator

    • 1 reply
    • 1.9k views
  5. Started by baldilocks,

    Hi all i have greased the swinging arm bushes on my sons oset and am intending getting a lighter spring for the shock off the oset website to make the rear suspension more suitable for his weight. However Oset dont list softer springs for the forks anyone managed to soften them as i would like to make both front and rear softer.

    • 1 reply
    • 1.9k views
  6. Started by stinky_pete,

    Hi all, just though i'd say hello. I've been looking around for a bike for my youngest son (he will be 4 in May) and spotted these! I believe Martin Sandiford would be my nearest seller in Ramsbottom. I must pay him a visit. £700 is a lot of outlay for a 'i hope he gets the bike bug'. I love the idea that you can take them almost anywhere though. Many thanks... Pete

    • 0 replies
    • 1.9k views
  7. Started by baz883,

    Hook Woods Trials Club will be running a beginers training day at Hook Woods on Februaruy 13th - OSET UK will also be there with some OSETs for people to try from 1pm Onwards Feel free to come along - if you would like some more information then phone OSET UK on 0843 289 2890

    • 0 replies
    • 1.9k views
  8. Hi, I put new grips on my son's 36v bike and now the throttle comes in at half power making it impossible to ride. The grip that I put on the throttle did require a bit of force to go on and I'm concerned I have damaged the throttle position sensor, I have not looked at taking it to pieces yet but was hoping there would be an easy fix before having to strip it. Any advice would be appreciated, cheers, Mark.

    • 2 replies
    • 1.8k views
  9. Started by joe hawkins,

    Had a look through earlier posts and can't see what I'm looking for. As my Oset charger has now stopped working is it ok to individually charge each pack off the bike. I think the batteries are toast anyway, as on both types of charger they only last about 40 mins with steady use. Any recomendations where to buy batteries in the UK as the Oset ones seem expensive?

    • 3 replies
    • 1.8k views
  10. Started by wobbler_iom,

    I've been eyeing up lots of new parts for little ones rusty old 12.5 ready for the big build. they have just put the prices right up, £69.99 now for a complete fork assembly up from £39.99 before xmas plus the postage of £7 or more. should have bought it all before xmas, cheers oset!

    • 1 reply
    • 1.8k views
  11. Started by mark37rugby,

    Hello, I am after a seat and rear mudguard unit for my sons Oset 16 2013 I think… It’s the old version so one panel… Can’t get new anywhere, has anyone got a used one they would sell or any ideas of something I could modify to fit that looks fit for purpose? Thanks in advance! Mark

    • 0 replies
    • 1.8k views
  12. I need to replace the encoder on a TXP‑24 due to false high temperature alarm. When replacing the encoder, one needs to calibrate it to the motor (Function 24) according to this youtube video by Oset: https://www.youtube.com/watch?v=_jGKsitIyMI&list=PLXQxIfDz8sKiBnStlqqGt1Pi45bGQdjlH&index=14 Oset do not sell this tool to end users unfortunately. This is a blocker for users located in remote places. Has anyone managed to DIY this step?

  13. Started by trevbul1,

    Hi all, Looking at a 2018 Oset 24, are there any known faults I should look for and any way to check the health of the battery please? TIA

    • 0 replies
    • 1.8k views
  14. Started by Bacon540,

    Hi Everyone, can anyone point me in the right direction to get a new plastics set for the old (2011ish) Oset 16? I’m really struggling to find anything at all. Uk or European based ideally.

      • Sad
    • 1 reply
    • 1.8k views
  15. Started by kasper,

    Hello, I am curious about your experiences with LiPo packs. Recently my daughter moved to 16" Oset. I made 13.5A S8 LiPo pack for her 12", it was good enough for half a day riding G class competition. The main battery drop was actually happening between stages on the crossings. What is your experience with 16" Oset and LiPo-s, what amperage you have and how long and what distance it can cover?

    • 0 replies
    • 1.8k views
  16. Started by Jmracing36,

    Hi, Need some help with my son's 12.5r, the bike will run perfectly for about 30mins after that the power will keep cutting in and out, have recently done a lipo conversion and there is still plenty of juice left in the batteries when the cutting starts, any ideas? Thank you.

    • 1 reply
    • 1.8k views
  17. Started by Willcockcraig,

    Hi, I've installed a kelly controller onto my sons Oset 20 which is running a genuine oset lithium battery pack. I've followed the wiring diagram from kelly and also from an article by Mxoset on here. The controller powers on and I can configure it with the laptop but I'm not managing to get it working the motor. Any help/advice appreciated.

  18. Started by LuisMP29,

    I have a breakdown in the promax brake caliper, which are not sold separately and have the characteristic of using dot 4. Because of this, several scenarios present themselves to me. 1. Get an AVID JUICY clamp that is in good condition and enter dot 4. 2. repair the one I have, but I don't think it will work. 3. Change the entire system of both wheels for shimano. Has anyone had to change the brake system?

  19. Started by Elsinore76,

    Hi can anyone tell me the O’ring size on the grub screw for the bleed port “ Promax Hornet 20R. Thanks

    • 0 replies
    • 1.7k views
  20. Started by Redfern,

    Hi, I'm after a bit of direction with a power issue on my sons 36v oset 16. Turned the key last night after cleaning it Sunday, throttle lights up but no power to motor. Controller clicks as it should when the key is turned. Potentiometer was looking rusty so unplugged the connetor, tried the throttle and the motor kicked but didn't run. Could it be a Potentiometer issue or more? The bike is a 16 with red frame, I've read online that these were released in 2010 and 2010 only but not too sure so don't know which Potentiometer to order! Any help would be much appreciated, Thanks, Lee.

    • 0 replies
    • 1.7k views

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