OSET Electric Trials Bikes

Hello! I´m about to buy an Oset for myself (and my son off course) and would like someone to measure the motor - diameter and length. The reason is that I want to put in a brushless motor if there is space enough (with some mods). I´m a bit allergic to DC motors... As I have seen there is room for a bit bigger diameter than stock motor but the length is limited between the swingarm.

Had a near miss at the weekend with my 4 year old on his 12.5. He was riding down a short steep hill when the throttle has gone forward past the off stop position. The throttle then operated as full throttle and the bike took off crashing with him into a wall. Thankfully my son was fine. The oset has twisted bent forks and buckled wheel. I emailed oset uk with the details however to date no response. I would expect the default position with any failure should be to zero rather than maximum. At least with a petrol bike you have a kill switch.

Can anyone write up a comparison between the 24v and 36v Oset. Especially with regards to how long the batteries maintain a charge. Thanks, Mark

Hi all. I have a 2017 Oset 24R and i would like to get more power from it. Any suggestions? I am not averse to ripping the entire motor and controller set up out and starting again. I would like more range, but definitely more torque. Thanks guys.

Hi all. I have just bought 2 sets of soft Renthall grips, 1 for the 12.5 and 1 for the 16. As a relative novice to this, what is the best way of removing the old standard grips? The main one that I am confused about is the throttle grip. Many thanks

Hi all, I've just bought an non running Oset 16 36v 2012 model I think. I got it to work for about 5 seconds, but now nothing. When I turn the key switch on the relay clicks and soon after the controller clicks. I'm fairly sure the batteries are good and I have three red lights on the handlebar. As soon as I turn the throttle the motor will clunk a bit and then nothing. All the connections seem ok, I've read loads of stuff about measuring voltage on the relay and controller but my relay is all sealed and not really sure what I'm doing anyway. The motor seems quite clunky when I rotate it from turning the wheel, is this normal? guessing I will ne…

Hello from Scotland, I have just acquired 2x 20.0s and now realise that I'll be needing a second set of batteries. I'm not yet ready for lipo. I see I can buy from Oset at £39.99, or from intamicro https://www.intamicro.co.uk/p-653-rec10-12-yuasa-battery-12v-10ah.aspx for £24.99. probably elsewhere too. As I am buying two sets, the price difference is significant. Anyone know a reason not to go with the cheaper supplier? Also, what is the perceived wisdom regarding off-bike charging? I was thinking of buying a socket like on the bike and simply attaching it to the batteries. Can anyone point me to a source for the socket? Can I balance the current and future batt…

Hello guys, I created a 15aH LifePo4 Battery for the OSET of my son. At equivalent capacity, 10aH, the Lifepo4 will give better autonomy than the original lead batteries because the efficiency is much higher (95% against 60%)... I chose LifePo4 cells because they are safer than Li-ion (no risk of explosion or fire). Now my son can run x3 time longer and we won 8kg on the bike ! Please find in the attached file the full procedure if you want to create your own too. I put all the link to buy the components. Then all the setting for the BMS are explained in the attached file too. I chose this ELERIX bra…

Since its been raining we have been running low pressures in my boy's Oset 20 to try and get better grip. Problem is from time to time he manages to rip the valve out with the tyre spinning on the rim. Anyone have any solutions for running low pressures and stopping the tyre spinning? Would also be good to know if anyone can recommend a thicker inner tube to prevent pinch flats. Any ideas?

I have a small display stand at a well advertised Trials show (coming up in the next week or so.) No names no pack drill, but it is at Telford. The stand is not selling anything, it is promoting our own Conducted trials for riders aged 4 and above. If there are any other clubs that run conducted routes that would like a mention on the stand, let me know and I will put up a list. I need is the name of the club, your location and the dates of the events. Pete

My 2 year old is bike mad. He's got a balance bike and loves it rides it so confidently. So we've just got him an oset, he's still a bit small to hold it up on his own so we've put stabilisers on till he grows a little and gets used to it. He loves it and is doing really well. Here's some pics

Hi guys, I have just bought a new oset 24r, the standard Sram brakes on my bike are shockingly poor, I appreciate they are brand new discs and pads and will need to bed in, just wondering how long you guys took to get any power in them to pull a stoppie or to generally lock the brakes on? Or if anyone has the same problem or some tips?

Have brought the Shenko “19” 3.50 back tyre to put on my 24 Oset haven’t fitted it yet and just wondering if I could have some thoughts on this the Shenko was $30.00 as opposed to $600.00 for the 17 inch wheel and wider trials tyre from Oset , I only use the bike for trials and it’s great but looses a bit of grip with stock tyre, would I be better off with the 17 from oset or the Shenko, the Shenko will change the gearing a bit !!!! Thoughts

Hi guys, Instead of mounting Shinko 241 19x3.5 tire, I really would like to convert rear tire to 18", it will allow me to find better options for rear tires. I'm aware of rear wheel conversion kit, but it is 17" and selection of tires is very limited, on top of that OSET doesn't have them in stock. Here is what I found on US Ebay: https://www.ebay.com/itm/WM1-1-60-X-17-36-hole-Akront-Italian-style-flanged-alloy-vintage-motorcycle-rim/164154392242?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D225074%26meid%3Dd1673bbf4ee14b7aabf24322216eb53d%26pid%3D100167%26rk%3D1%26rkt%3D15%26sd%3D163655745238%26itm%3D164154392242%26pmt%3D0%26noa%3D1…

Seems my lad was able to dislodge a motor magnet today. The motor is a 36V 900W version. Anyone seen anything like this before? Unfortunately he didn't mention the power change he felt until later and there wasn't any noise so we kept riding for about 10 minutes more. As the pic shows the motor became extremely hot. And amazingly, it still runs. I haven't disassembled the brush side yet. I am curious what the consensus is here. Can it be rebuilt (should it be?) or just replace it. At this moment it seems like a replace to me (I know nothing about electric motors) but I was curious if anyone has been here before. Looks pretty nasty to me. Thanks all for the …

Apologies that this topic is not specifically Oset related but I figured I'd get the best response and feedback on the Oset forum. Whilst at the WTC this weekend saw loads of the kids riding on the Oset and wondered where the best place is to get trials clothing for a 4 1/2 year old. Looks like the Fox Pee Wee boots are best bet, especially in infant size 10 but what about trousers / shirt?? My son has the Wulf gear already but I saw MOTS, Fox and clice (among others) being worn. Can as Oset rider (or parent) advise where you can get gear this size?? Seen a few places selling Fox MX kit which looks fine but give b*gger all info on sizing other than 'youth small' etc…

Hi All, Im looking for help for Oset 16 Lithium battery options. In Australia I am having a very difficult time getting my hands on a lithium battery for the Oset16. I have spoken to the Oset importer (under triumph now) and they had no idea what I was talking about which is a little concerning. But I have seen several posts of people wiring 18v drill batteries in series and having great success. I thought I would reach out to this forum and see if anyone can give advice about this being successful or not and what sort of range to expect. I can get more lead acid batteries but I was hoping to get something lithium for extended range so he can at least ride a…

Looks like it might be a kids' bike, but there's no scale to compare the size.

hi all just tried fitting a lanyard to my grandsons 2007 oset 16 bike. it needs one for youth trials and as it is an old bike it seems it is not a simple matter of fit and go. i have an apico lanyard here and after taking the seat off discovred 2 red wires coming from the switch that have been fitted to it as they are not standard. i have tried using the lanyard using the red wires and when the 2 red wires are joined the motor is fine, when separated it stops, all well and good, when i add in the lanyard the motor will only work when the lanyard magnet is disconected, ie as if the rider has fallen off, the reverse of what should happen? any ideas?…

Hi all, I just picked up a used 2015 20.0 for my son to ride while we wait for the 20" TRS to show up stateside (indefinite covid delays). I'm planning to do a custom lithium ion pack for it as we did for his smaller, Oset. Thinking ahead, it's likely that we'll sell this 20.0 once the TRS shows up, and there's a good chance I will snag a 24" for myself to putter around the yard. So given this, it'd be awesome if I could build his 20.0 pack such that it would also work in a 24R in the future. Trouble is, I've never seen a 24R up close and do not know what the battery space is shaped like. If anyone could post pictures and measurements of a 24R battery pack that would…