In the past I have had a few of them ( Token) and they have worked well for me. Now I have this far away friend who claims that he needs another brand or type of catcher because its not working, being specific , it is too flexy at the bottom edge and 'allows' the chain to slide through onto the frame.
Need to mention that he has a compact crank set and his small ring has 36T.
I was curious if one of you has experienced similar problems with chain catchers working not properly on smaller rings than 39T .
I have checked that for example the Token chain catcher design fits perfect with a 39T set up but may have some issues working with smaller inner rings.
Told him that he can bend a spoke to his needs but he wants an original manufactured part on his bike.
2) make sure you get one that has independent adjustment separate from the front derailleur mounting bolt.
I recommend K-Edge personally.
And make sure your front derailleur is properly adjusted regardless of whether you're using a chain catcher or not. The chain catcher should only come into play on the rare occasion where a bump or something causes your chain to miss the small ring during the shift. It should not be there to remedy a poorly adjusted front derailleur that would otherwise be dropping the chain constantly.
On one my frames the bottom bracket lug extends up the seat tube to where the DF needs to be. I removed the normal mounting screw and nut and ran a zip tie through the holes around the dog fang. It's been on there that way for several years and never given me trouble.
AJS914 wrote:I think I've dropped a chain once in the last 20 years. I've never owned a chain catcher.
Same here.. But month ago, i was very tired, climbing i hit the pothole , chain went out and got stucked under the chain catcher on my C60, and striped a paint
But im thinking that if i did not have chain catcher at all, i'll just got the chain from the frame with the front deralieur and chain catcher stopped this. Of course the chain catcher was installed a bit far and this happend, but also wondering are they worth it at all, since if somethign got missalligment they are bigger threat then to dont have them.
p.s. Still have it on my bike, but put it very close to the chain after that accident and readjust the front deralieur (the only thing i went to my LBS, and they miss the adjustment properly which also lead to the accident with the chain)
For racing, not to run a chain catcher is pretty silly.
Except you hear about those cases where the chain gets trapped between a chain catcher and the derailleur requiring a allen wrench to get back on the road. That situation would put you out of a race.
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