Facebook Twitter LinkedIn Pinterest Bluesky Threads Put new cranks on, the current spindle is 130mm. Should I have gone for 139mm? by pinguu_ Bicycling Bike Bike Repair Biking Cycling Repair
Maleficent_Mud_7901 on January 27, 2026 4:35 pm I’m no expert but that seems like you could hit the frame if the frame and crank flex even a little.
thebauzzo on January 27, 2026 4:48 pm Are the cranks the EVOSID ones? Design looks very familiar. If so, I found them a fair bit flexy Side-to-side, I wouldn’t be confident with that gap.
jchrysostom on January 27, 2026 4:52 pm Spindle length is a function of BB width, unless I’m missing something here? As far as the gap, the engineer in me struggles to see how a crank arm and frame could flex in the way they would have to flex to cause contact here.
4 Comments
It make me uncomfortable thats’s forsure.
I’m no expert but that seems like you could hit the frame if the frame and crank flex even a little.
Are the cranks the EVOSID ones? Design looks very familiar.
If so, I found them a fair bit flexy Side-to-side, I wouldn’t be confident with that gap.
Spindle length is a function of BB width, unless I’m missing something here?
As far as the gap, the engineer in me struggles to see how a crank arm and frame could flex in the way they would have to flex to cause contact here.