On 8/17/2019 2:57 AM, wrote:
On Saturday, August 17, 2019 at 3:01:47 AM UTC+2, jbeattie wrote:


Actually, the one weird tool I wish I had once was the pre-load cap tool for a Shimano Hollotech crank when my son got massive chain suck and jammed the chain between the stay and the ring. It was really, really stuck, and I was going to pull the crank. I tried to back out the cap with a screw driver and just munged it up. I eventually got the chain loose, but not without marring the stay.

Did you loosen the pinch bolts first? It is standard procedure for a friend of mine who put a triple crankset on a frame not suitable for that. As a result he drops the chain regurarly between the small ring and bottom bracket and gets really stuck.

Could he use one of these?
https://www.rei.com/product/670913/t...-chain-watcher

It's worked well on our tandem for a long time.

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- Frank Krygowski