That bike was parked when it broke, I think it was backed over by a truck or something.

CVT cover save lives. My motor was held together when it was split in half from the right side. When I brought it in to RUCKSTERS for them to work on it, the minute the cover's bolt was loosen & removed, the motor split immediately.

Are you running the fatty rear?

Output was running a regular wheel, not a fatty.

dam I thought the breaks where only happening with the wide flat fatties. Going to keep an eye on mine. I'm running a regular rear with the cvt cover.

Yups, regular stock 12" rear. Constant bolt check & lookout. Ride safe!

I'm running a built 125cc -> 161cc pgo motor (gy6 short case made in taiwan) that comes out of the genuine buddy scooter. The motor itself is beefier, but i wonder if anyone has had any breaking or cracking with a gy6 short case?

I've been running a vented CVT cover for a long while now and no signs of cracking. I am running the right side swingarm, and dual shocks though. I assume all that helps?


Forgive the ghettoness, I was working on my bike when I took this pic many moons ago.

Any more issues of this happening? I am going to be running a short shaft, 12x7 fatty (rounded), 140/60/12 tire, and one shock. I will be running a square steel tubing along the cvt cover and attach it to the last hole on the back. At the front, I will attach it to the mojo mounts with a bushing so it will swivel with the motor.
Anyone else done this? I saw a few on our last ride where it had been done before.

Also, has there been any cases of the short shaft coming out while riding and no second arm? I put it in the other day, and the whole thing is held in place by a "c" clip!!?? Doesn't seem like much holding it in...? My friend says it's fine-he says Chevy axles are held in place with the same thing!
Is this true?

never heard of anyone losing an axle and yes this happened just saturday. another member running a chinese case, 12x7, short axle, and no trans cover. happened at a stop sign so thankfully no one was injured
I firmly believe the case is not structurally sound unless you have a trans cover.





CHECK YOUR SHIT and RIDE SAFE

Thanks for the heads up.
CVT cover time for me.

It just seems that small "c" clip isn't much to be holding the whole axle/hub/wheel/tire on.....
What is the physics to rounding the corner off of the case? Any other options to reinforcing it? Any links we can look at to make it structurally stronger?
I'll keep checking back into this as I am in the process of doing it now!!

It's not. The shaft (and wheel assembly) are held securely in the case by the high beveled shoulder machined into the shaft. The C-clip is only there to locate the final gear in the correct position on the shaft.

Thanks stimpy