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0 votes
1 answer
944 views

Conversion to single speed: crankset specs?

I picked up a cheap frame recently which came with bottom bracket, 3x speed chainring, crank arms and pedals, handlebars, forks, and front & rear rim brakes. I've removed the chainring and right ...
mjvolpe's user avatar
3 votes
2 answers
683 views

Bottom bracket needing repacement more often in a single speed bike

I used to live in quite a hilly area but managed well with a single speed Mango aluminium bike on most of these hills. I wanted to know if it is possible that due to extra pressure being exerted on ...
subobject_classifier's user avatar
0 votes
2 answers
1k views

Need help finding compatible bottom bracket and crank set for track bike

My bike is this: https://www.santafixie.co.uk/derail-black-fixed-bike.html The BB measurements on the link are CH55 BSA 68/107. I know literally bare minimum about bottom brackets and crank sets. I ...
Luke Russell's user avatar
2 votes
2 answers
4k views

Minimum space between square taper crank and bottom bracket

I upgraded to a new square taper crankset on a single-speed drivetrain and now the gap between my crank and the bottom bracket is bigger. That's because the cranks taper shape is different from the ...
Alessandro Cosentino's user avatar
5 votes
2 answers
4k views

Ideal distance between chainring and chain stay

I am building a single speed bicycle, and I have most of the drivetrain parts: Rear hub 18T rear cog (40-40.5mm ideal rear chainline -- wheel undished) 1/8" chain crankset with 40T chainring I used ...
Robert's user avatar
  • 2,069
1 vote
2 answers
4k views

Better to go with a longer spindle length bottom bracket or shorter?

I have a 1987 Panasonic dx1000 that I am converting to a single speed. I was planning on replacing the bottom bracket. To get the measurements I measured the tube to be 70mm (2 3/4") and the spindle ...
Jack's user avatar
  • 11