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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 09-11-05, 04:38 PM   #1
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Help converting

I am about to start buying parts for my conversion to fixed gear, but i need to know which parts i need to buy . I am planning on buying a new velocity rear wheel from IRO, how do i figure out exactly which size hub i will need...... 120, 126 or 130mm? besides a cog, lockring and chain do i honeslty need anything else? Can i recycle my current bottom bracket (which is relativley old) or should i look into purchasing a new one? If i do decide to purchase a new bottom bracket how do i figure out the size i need? MOst i have looked at have 68mm shell size, is that standard for an older road bike? And in terms of spindle length what is best... i have looked at everything from 107-111mm? Your help would be much appreciated. If there is anything else i am neglecting to remember please help me out.
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Old 09-12-05, 06:31 AM   #2
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This is the general how to:
This is for measuring your drop-outs:
bottom bracket:

I use a 110 spindle lenght and have had no problems getting a straight chainline. My rear drop-outs are spaced at 120mm

I would suggest surfing everything Sheldon Brown has to say on his site. He is a guru for a reason.
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