Hi guys,
got a problem with my bike I got a few months ago. It’s a Cannondale R500 which came with a SRAM groupset except for the cranks. Therefore I wanted to get new cranks and bought the sram force 22 BB30 cranks. Later I realized, that I should have bought the GXP version, because they fit BSA 68mm Bottom brackets, wich my bike has. But they are expensive new and quite hard to get in a acceptable used condition.
Got the old crankset removed by my bikeshop and the new crankset installed (took them 7 weeks, 4 weeks just to remove the old crankset, which I had to do myself in the end, because they couldn’t figure out how to do it lol)
Somehow the crank fitted, but now I realized the axle is moving. Is there any chance to solve that problem with some spacers or do I have to get a complete new crankset + BBs?
Technical information:
Frame: Cannondale R500 (2001 I think) for BSA 68mm BBs
Bottom Bracket: FSA Megaevo BSA30 (not 100% sure)
Old Crankset: FSA Energy Road with 30mm axle diameter
New crankset: SRAM force 22 BB30
Thanks for any help in advance!
by AlternativeOk5057
10 Comments
https://preview.redd.it/jwnx6u5cup2f1.jpeg?width=4032&format=pjpg&auto=webp&s=f52f6ce0fe523a1aa595675b0aec4e1eb44c0d88
This is the bike btw
https://preview.redd.it/dfpeqngfup2f1.jpeg?width=3024&format=pjpg&auto=webp&s=cbf3305fc78dda939d8e5fde4090c8b943420005
When the crank is pushed the left side
https://preview.redd.it/bf779shjup2f1.jpeg?width=3024&format=pjpg&auto=webp&s=2fa500720bcd760891d40c067f5b82c228beaa71
When it’s pushed to the right side
This just happened to me on my MTB. The cause was from crashing on some rocks and the press fit bottom bracket bearing being knocked out of the cup on the other side.
It looks like your bottom bracket is a threaded one, maybe one of the cups have became loose.
The thing with the “+” sign on it is a preload ring. Turn it in the direction of the arrow and it should become snug with a turn or two.
The pre-tensioner needs tightening I think.
That’s the grey bit between your crank and the bottom bracket. You need to loosen a screw that’s keeping it clamped. Turn it to remove that play then tighten the cinch screw again. Same on the other side.
*edited for typos
Spacer.
FSA BB386 BB are thinner than other BSA30, you’ll need spacers.
You’ll probably need spacers, but it is quite clear that the preload adjuster is butted up against the crank arm and not the bearing face where it should be.
Just saying, loosen the small screw before turning the preload adjuster. Turn it towards the frame / clockwise. Tighten the set screw until it is snug. It’s a plastic adjuster, so don’t tighten it too much or it’ll slip.