Chainsuck

steelo

I was riding in Afan Forest yesterday and I was suffering on and off with chainsuck despite cleaning dirt off the rear mech in the small rivers we were occasionally crossing. I now have a couple of nasty gouges in the paintwork on the frame where the chain has been jammed between the chainring and the chainstay.

Can anything be done to reduce the chances of chainsuck happening? (Other than avoiding mud!)

Would shortening the chain help, or using a short cage rear mech, or do I have to live with it?

Seagull

Is it in a specific chainring? I normally get chainsuck in the granny ring when its starting to get worn, occasionally it happens to the middle ring as well.

When I get the chainsuck I normally just swop out the offending chainring with a new one, shimano deore steel rings being my favourite long lasting chain rings. If you look at your chainrings you may see little burrs forming on the edge of the teeth, this is a sign that they are wearing. You can try and file them down, but in my experience its hard to eliminate the chainsuck completely this way.

supersonic

Check the condition of your chainrings and chain. Hooked teeth maybe causing this to happen, and any dirt makes the problem worse.

steelo

My bike is only 5 weeks old, surely it can't be a worn chainring?!?

Drfabulous0

Try ajusting the front mech, it's easy to setup a front mech fine in the shop that won't perform quite right out on the trail. Try tightening the inner screw and maybe putting some tension in your cable if your bike is new and hasn't been serviced yet.

Seagull

steelo wrote:

My bike is only 5 weeks old, surely it can't be a worn chainring?!?

My middleburn hardcoat chainrings gave chainsuck from new; when I replaced the entire drivetrain, I thought it was muck and other causes. However the proof test was changing the inner and middle chainrings for some old shimano ones I had, and the chainsuck went away immediately. The middleburn rings looked like 2 years rather than 2 months of wear on them, obviously not upto real mud and grit then.

dave_s

I used to use one of these anti-chainsuck plates on an old Kona full suspension bike I had which really seemed to suffer from chainsuck.

Almost ruined a day out at Coed-y-Brenin once when the chain jammed solid behind the chainset, and it never happened again after I fitted this plate.

On the Kona I had to saw one small section off the plate because of the frame design but it worked flawlessly after that. On a hardtail, I'd imagine it would be fine without hacking anything off it though

http://www.bikemagic.com/review/reviewp ... rgn/3/v/1/