Questions tagged [bsa]

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6 votes
4 answers
722 views

Why were press fit bottom brackets invented?

What I've seen online says that it allows for lighter and stiffer cranksets becasue the axle can be a larger diameter. However, FSA sells BSA threaded outboard bearings compatible with BB386 EVO which ...
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  • 379
3 votes
1 answer
770 views

Can BSA 68/73 bottom bracket be used in place of fat bike BSA 100 mm

I have a fat bike with SRAM GXP 100 mm bottom bracket. Except for the length of the plastic sleeve that connects two cups, it looks exactly like BSA 68/73 mm bottom brackets used on non-fat MTBs. I ...
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3 votes
1 answer
645 views

BB30 to BSA frame conversion with internal cable routing?

I'm interested in using BSA crank parts with a certain BB30 frame and I'm a little unclear about cable routing, I'm hoping somebody here can help clarify the confusion. I'm considering purchasing a ...
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  • 837
2 votes
1 answer
2k views

Crankset compatibility: Specialized Stout XC vs. SRAM GX 1000 GXP

I need to replace the crankset on my Specialized Rockhopper 29 Expert (year 2017) due to damage. I would prefer not to replace the BB to minimize the cost/effort. The original crankset is described by ...
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1 vote
1 answer
323 views

Is ISIS compatible with BSA?

I want to get a Cyclone motor to install into my bike. My bike has a 120mm BSA bottom bracket, and the motor is available in Square Tape and ISIS varieties. Are these compatible?
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1 vote
1 answer
129 views

Will my chain line be affected if I use a BB386EVO crankset on a standard cartridge BSA frame?

https://www.ebay.com/itm/324064544587 FSA sells this which allows you to use BB386 cranks with BSA frames. Is the offset different enough between the two standards to cause problems with my chain ...
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  • 379
0 votes
0 answers
25 views

Euro External Outboard Bottom Bracket - Heard a crack while installing

While installing a euro bottom bracket (BSA threaded), I heard a crack while tightening the NDS. The frame is aluminum and I'm not sure what the material of the bottom bracket is. Bottom bracket Frame ...
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