Hello,
I currently have a shimano 105 crankset (52-36) on a Tarmac SL6 and I am looking at second hand offers to get a crankset with a powermeter. I notice a there is a "ring" between the left crankarm and the frame and its written "rotor" and "30 to 24" on it, same on the other side.
I'm having a hard time knowing which one will be compatible with my bike as I really don't know anything about bottom brackets and these kind of stuff.
I only have to make sure it's a 24mm axle and that chainring are 11speed (crankset are 105 but the rest is all 11s ultegra) ?
From what I understood Tarmacs SL6 have BB30 and my lbs sold it to me with an adaptator to fit a shimano crankset, so any 24mm axle crankset will work, but 24mm is the diamater of the axle, what about the lenght to make sure it sticks out enough to put the non drive train crankarm ?
Cheers
Crankset compatibility
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SapphireSphinx
- Posts: 9
- Joined: Thu Mar 21, 2024 11:51 pm
Since your Tarmac SL6 has a BB30 bottom bracket with a Shimano adapter, any crankset with a 24mm axle should fit. As for the axle length, for road bikes like yours, it's typically standardized, so you shouldn't need to worry about it. Just ensure the crankset you're eyeing has 11-speed compatible chainrings. Double-checking the specs before making the purchase is always a good idea, and if you have any doubts, your local bike shop can provide guidance to ensure compatibility.
