Broken chain guide mount.

Thought I got off a little easy on my son's last get off!:thumbsup: Thought it only cost me a hot start lever and some scratches.But When he was washing the bike today and going through everything I noticed the sprocket looking a little funny.I've seen the other post on broken welds but this broke the bracket. Looks like it will cost a rear sprocket,possibly a chain,chain guide,cause it cut through the outer piece and plastic skid and one heck of a good tig welder.

Any thoughts on repairing,do I need to take the swing arm off?Can I get a whole new bracket to be welded on?And do you think I should replace the chain?My gut feeling say's "yes"





Yes, you need to remove the swingarm.

If it was me I would have them weld a small plate right over the cracked area after grinding off the old weld.

Then, grind off the old weld on the other side and put a real bead on it there too.

I also have my guy cap off the ends with aluminum plates and weld.

Find a good welder to do it though. I brought mine to a guy that builds race cars.

Lastly, ditch that aluminum chain guide and go with a TM unit. It will absorb and flex instead of distributing the impact directly to the mount.

A crack in that spot is super common for the X's. I have had at least 9 of them crack there (all different bikes). I never use an aluminum chain giude, only a plastic TM Design.

Can anyone recommend a good welder in the San Bernadino-Riverside area?Hemet to be exact.

Ok swing arm is off,found a recomended welder.One thing I read about and kinda knew but forgot about that stupid little clip on the back of the brake lever bolt.Hanked up the first couple of threads on the bolt before I wondered whats up.Broke the clip, the bolt housing stayed fine.I think I'm just gonna locktite the bolt and shine the darn clip.:thumbsup:

Had the same thing happen during a race last year (my only DNF).


Pulled the swing arm and took it to a local custom chopper guy who charged $50.00 to clean it up & re-weld it for me. I thought it was a hell of a good price too considering the front & rear mounts were warped and needed to be straightened as well.


The aftermarket chain guide puts up with abuse a lot better than the stock one did.

It might just be me but the pics make your chain look really strange. Id replace it to be safe.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now