Yep confirm. Bolt was beyond tight and all of a sudden drive side crank became loose. Not sure how many rides but potentially a few....pretty sure i would have noticed. In fact, taking out 8mm was a nightmare, i had to almost stand on my allen key so it definitely was not loose. A spacer cant have been lost because i havent taken my cranks off for about 12 months!
Left crank still feels perfect, not play whatsoever, so i'm pretty sure the BB is all thumbs up.
It's also definitely not the cinch ring. That's got no play.
What i don't know is the spacer set up prior to the play in the crank. There's a RF spacer (same as this [https://www.silverfish-uk.com/manufacturer/race-face/SPARES/Cranks-Chainsets/F30040_Race-Face-](https://www.silverfish-uk.com/manufacturer/race-face/SPARES/Cranks-Chainsets/F30040_Race-Face-)) that has 1 red and 1 black rubber spacer. They seem like they've worn a bit, and the collar that they sit on protrudes out further than the spacers, is that normal? Could i potenitally have had 3 for my bike set up and one has worn out as only rubber?
Seems like a strange setup to keep cranks from play is via a rubber spacer. Shimano's set up of the plastic end that pulls cranks together then the 2 bolt fastner on the non drive side seems to be a more robust system.
March 1, 2020, 2:28 p.m. - canterbury
Yep confirm. Bolt was beyond tight and all of a sudden drive side crank became loose. Not sure how many rides but potentially a few....pretty sure i would have noticed. In fact, taking out 8mm was a nightmare, i had to almost stand on my allen key so it definitely was not loose. A spacer cant have been lost because i havent taken my cranks off for about 12 months! Left crank still feels perfect, not play whatsoever, so i'm pretty sure the BB is all thumbs up. It's also definitely not the cinch ring. That's got no play. What i don't know is the spacer set up prior to the play in the crank. There's a RF spacer (same as this [https://www.silverfish-uk.com/manufacturer/race-face/SPARES/Cranks-Chainsets/F30040_Race-Face-](https://www.silverfish-uk.com/manufacturer/race-face/SPARES/Cranks-Chainsets/F30040_Race-Face-)) that has 1 red and 1 black rubber spacer. They seem like they've worn a bit, and the collar that they sit on protrudes out further than the spacers, is that normal? Could i potenitally have had 3 for my bike set up and one has worn out as only rubber? Seems like a strange setup to keep cranks from play is via a rubber spacer. Shimano's set up of the plastic end that pulls cranks together then the 2 bolt fastner on the non drive side seems to be a more robust system.