On Saturday, August 17, 2019 at 5:54:22 PM UTC-7, Frank Krygowski wrote:
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.

--
- Frank Krygowski

It wasn't a dropped chain -- the bike comes OE with a chain watcher. It was chain suck where the chain hangs on to the small ring. https://tinyurl.com/y3tbw5ct When Ruckus did the repairs, it put in a plate on the stay. They did an amazing repair. Not cheap, but worth it. And groan, someone smarter than me figured out how to get the preload cap off with a multi-tool, although that's not my tool. https://anonadventure.files.wordpres...297.jpg?w=1568 The OE 105 crank has a pretty shallow cap, and I don't know if that would have worked, but its an interesting idea.

-- Jay Beattie.