Does such a part exist?
Discussion
My son keeps having the chain come off the smallest (innermost) chain ring and jamming between crank and bottom bracket. I've spoken to him about his technique (it's probably through changing to the smallest ring while going over bumps, down kerb etc.) but was wondering if there's a part similar to the chainring guard that's used on the outer ring to keep it off clothes/calf etc. This might stop the chain slipping off so easily. I've had the shop check and adjust the mech and seen it tested on a stand and the changes are fine with no recreation of the problem under stable shop conditions.
Anyone?
Bike is 3 month old Specialised Hard Rock MTB
Anyone?
Bike is 3 month old Specialised Hard Rock MTB
gazza285 said:
Deda dog fang.
This. If you can fit one.I had one on an older bike, but that frame died. My current bike has a lovely (really not lovely
) big chunk of paint missing behind the chainrings now. The chain drop device fitted by Trek seemingly doesn't prevent chain drop, yet it's right in the way of where a Dog Fang would sit, and the Deda thing wouldn't fit the sculpted fat carbon fibre tube form anyway.I, too, suspected the limit screw. But no dice. It's fine. Any further adjustment causes chain rub and failure to drop into the inner ring. This is on a road bike too, so shouldn't be due to the bike bouncing around causing chain slap.
Links to a couple more suggestions here...
http://fitwerx.com/bicycle-chain-catchers/
http://www.bikestar.cz/k-edge/k-edge-dirt-triple2
http://blog.goo.ne.jp/iitakaboglog/e/faa2fb9b6c9c9...
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