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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 01-25-07, 05:58 PM   #1
Kircules
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replacing BB on Dumpster Bike, cotter pin Cranks?

So, I have rescued a steel dumpster horse. it was Laying on the side of sunset in San Francisco. It's a blue Free Spirit FS12. Official Korean Steel. I picked it up because My lady has been begging for her own hotpink rattle can Fixie. It's a Sear bike I'm pretty sure, but will work well for her first suicide hubbed fixie. Anyhoo, of course it has those disgusting cotter pinned cranks. I hammered out the pins and pulled out the bottom bracket. I bought a 40t cog and new crank arms to fit off a guy on CL. Now I need a BB. What would be the cheapest replacent BB so I can put on the new cranks?
Anyone know the usual size for a replacemnt BB on a sears bike? I can't find my tape measure.
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Old 01-25-07, 06:20 PM   #2
nitropowered
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Most likely is 68mm english. Spindle length would probably be around 110-130 depending on your cranks and chainline.

Just pick up any sealed BB unit. It'll be cheap.
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Old 01-26-07, 07:21 AM   #3
Aeroplane
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Originally Posted by nitropowered
Most likely is 68mm english. Spindle length would probably be around 110-130 depending on your cranks and chainline.

Just pick up any sealed BB unit. It'll be cheap.
+1. Ditch the old cups and get a cheap Shimano thing. No worries.
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