oldtrialer

it's not too bad once you get used to it. After about two years I kind of use the hand brake like a clutch.

That is about what the Oset can do. It all depends on speed.

The Oset has a shorter wheelbase than a gas bike and is lighter. Mine with the larger rear wheel and tire weighs about 110 lbs. Very easy to move around in the tight stuff. As long as you don't do much wide open riding, the battery will last a good 10 miles or more.

The batteries should last about 1000 charges. It is easy to change, held in with Velcro. Threaded connector. I changed mine during an event. Just riding around slow and riding sections, the battery will last an afternoon. Full throttle riding drains it faster.

That is what I'm wondering. The GasGas site says it's a 32TC 5/14, 1.85 x 17 VeeRubber tire. VeeRubber doesn't have a number like that.

Does anyone have or know someone that has a newer GasGas 80? They have a 3.50-17 rear tire. The spec sheet shows a Veerubber model number that doesn't show up on their website. I was wondering if they are special tires for GasGas and are they softer than the Veerubber VRM308.

Oset US gave me a deal at $900. About $100 off. I guess they like that I'm riding events with it and giving test rides.

Or you could go the cheaper route and get an Oset 24 if you are not too big. I've had mine for a year now, and it is the perfect play bike. After 40 years on gas trials bikes, it was easy to go back to the 70's riding style on the Oset. With the wider rear wheel and the spare battery I just got, I'm still only in for about $5500.

Which Alltrax controller were you looking at?

If you are talking about the throttle response, you have to play with it to find the best setting. I started with the response dial in the middle and moved it up until I found a spot where I could easily get the front wheel up, but not so much power that you lose traction too easy. I also put a spacer in the throttle to remove all the play at the bottom. This was the best thing I did. I also got the factory larger rear wheel to help with the traction. I have been riding trials for over 40 years and came off a GasGas 321. It will take some time to get used to the power delivery.

I'm pretty sure the GasGas manual said to lift the rear fender and then see how much it drops. You want a trials bike soft. Most will drop an inch with rider on.

My preload adjusting nut was loose at first. I snugged it up so it wouldn't loosen again. I think getting used to the electric quirks is the most important thing.

Without rider. Lift the rear up and see how much it settles down. That's how I did it on my GasGas..

The sudden power surge is the main problem. You lose traction on the easiest things. Remember, these were designed to teach kids how to ride, not necessarily a great competition bike. I'm thinking about replacing the controller with one that can change the power and throttle at the same time in real time. Some people drag the rear brake to control power. I'm old school, don't use the brakes unless you really need them. I haven't had any problems with the brakes. I don't think I have any sag on mine. I took out most of the dampening to make it easier to go over obstacles.

I would rather have less power at low speed, more traction, then progressively getting higher with throttle like a gas bike.

This is a question I sent to an Oset design engineer. There is one thing I’ve been thinking about. If there was a way to control the power(torque/current) and speed(voltage) at the same time with the throttle, it would make the response more like a gas bike. Less torque and better traction at slower speeds. I’ve been thinking about using slide resistors for power and speed, connected to a quick throttle assembly with a cable. Can the Oset controller handle this. Would it be best to replace the stock throttle with a resistor (what size would work?) or just the speed dial resistor with a slide and bypass the stock throttle. The one complaint about all e-bikes seems to be too much torque at the bottom. His response You could setup a switch that would adjust the amps (power dial) of the bike, so for wet rocks you have it set to low and then for big manoeuvres you set it to high, maybe a middle option for other riding. This would replace the power dial and you could adjust on the fly, any change would take effect when you fully come off the throttle and then back on. As the throttle is at present a hall effect I don’t think it is possible to switch to a resistor setup. I guess we'll have to wait awhile for a controller that can change power and speed at the same time. I also asked about adjusting the free play on the throttle. My bike has way too much. There is no adjustment. I might try to add more material on the stop.

Last week I received a reply from an Oset design engineer for a question I sent him. For my 24, I asked if you could replace the power dial and throttle with slide resistors connected to a cable quick throttle. He said the power setting can't be changed on the fly without coming fully off the throttle. He doesn't believe the hall throttle can be replaced with a resistor.

I rode one event. 4 loops with eight sections per loop, total of 5 miles for the day. On the only fast portion of the loop, at the end of the day, one of the lights went out on the throttle at wide open and I noticed the speed was slower. Still had plenty of power to lift the front wheel. The first two loops I turned the key off while waiting. The last two I left it on. I don't know if that helps or not. Went to another event and on the 4th section I crashed. I was going uphill fast over some small rough, slippery rocks. I think the rear wheel got caught in a vee in the rocks. At full power it came back over on me and I landed on a rock. I finished the loop and called it a day. Haven't had the time to ride since. I did weight the bike though. I got 110 lbs.

That was with the Oset 20ah Lipo.

I'm within the weight limit at 165 lbs and 5' 8". I made a 1 1/2" spacer for my bars. I rode my first trials and first event in 5 years on Saturday. It was a combination vintage and modern event. I rode the 3 line which is equal to novice here in the states. It was 8 sections ridden 4 times. Still learning the bike so my scores weren't very good. I did the whole trials with one light going out on the only high speed part of the loop on the last two loops. My bicycle computer said I rode 4.2 miles. I am considering checking with Oset how much they want for another battery.

I had the same problem with my 348 back in the day. I rearranged the spacers on the gear shafts and the problem went away.

Lets try the photos again.

I got back out again today. Left some red paint on a few rocks. Slowly getting used to throttle control. It's hard to keep the throttle on just a little after you open it up to get the front end up and then the second blip to go over a bigger obstacle. I was trying two foot logs and a two foot rock with no drop off on the other side. The short wheel base is the biggest thing to get used to. Have to relearn turns all over again. If I had the time, I would build a new frame with a longer wheelbase. Here are some better photos of the rear wheel and on of the response setting. I wish there was more fine control over the response near the top.

I got to ride with the new wheel this morning. The tire is a radial, tube type. Traction and feel are much improved over the skinny tire, even though it was a bit muddy. I was running 5lbs, pressure. Without the engine noise, you can hear the tire flexing and getting grip. I raised the bars 1 1/2" and made a wider piece of rubber to protect the shock.

I got my new wheel Saturday. It didn't come with rotor or sprocket. The sprocket hub on the original wheel doesn't want to come off. I stripped out all the bolts I tried to remove. Even with some heat applied. I tried to drill one out. The countersunk head seems to be soft while the threads are hardened. Couldn't drill into the threads. I'll see what Oset says tomorrow.