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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 04-16-08, 04:40 PM   #1
ignitewonder
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single speed conversion HELP

so, i have an old threaded free wheel roadbike with horizontal drop outs, but it has a one piece crank (ashtabula)

am i correct in thinking that i can replace the 1 piece crank with a 3 piece crank if i put in some adapters to fill the extra large hole that remains in the frame?

i am thinking that i can run a 1/8 chain with 16:42 gearing onto a bmx crankset, to keep the chainline tight.

does a 42 tooth chain ring on a bmx crankset with 1/8 chain onto a 16 tooth rear sprocket seem like it could work?
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Old 04-17-08, 02:15 PM   #2
FirstAidKit
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yeah it could work. Since the frame you have came with single-piecers I'm guessing it's a cheap set up. You might want to consider finding a higher quality bike to convert if your willing to spend the dough on adapters and bmx cranks. Don't spend the money unless it's worth it, you'll be happier in the long run and will be able to sell it for more after the apocalypse...
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Old 04-17-08, 02:17 PM   #3
04jtb
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Originally Posted by FirstAidKit View Post
yeah it could work. Since the frame you have came with single-piecers I'm guessing it's a cheap set up. You might want to consider finding a higher quality bike to convert if your willing to spend the dough on adapters and bmx cranks. Don't spend the money unless it's worth it, you'll be happier in the long run and will be able to sell it for more after the apocalypse...
+1 I'd agree with this
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i jam my thumbs up and back into the tubes. this way i can point my fingers straight out in front to split the wind and attain an even more aero profile, and the usual fixed gear - zen - connectedness feeling through the drivetrain is multiplied ten fold because my thumbs become one with the tubing.
A group for all Dawes Galaxy owners to give and recieve information about them
http://flickr.com/groups/dawes_galaxy/
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Old 04-17-08, 02:23 PM   #4
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Me too, at least start with a frame with a 3 piece crank. For the price of an adapter you can probably find one.
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