Framebuilders - Reverse Cold Setting

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oatmealfight
03-17-09, 11:28 AM
Hi,

I scored some awesome parts that were tossed in the dumpster behind my LBC:
A mid-90s Trek Mountain Track frame (my second) and an Shimano 3S hub laced to some tacoed steel rim.

The frame is a touch rusty, but fine, and the hub works okay as well. My original intent was to use the two together, but the Trek has 130mm width while the hub is 114mm. I've read about cold setting, where one can press apart dropouts to fit WIDER hubs, but I've never heard of anyone making the dropouts closer together. Is it roughly the same process? Has anyone done this before? I'm willing to take chances because, after all, I didn't pay a dime for the frame.

thanks!

imabeliever1
03-17-09, 01:55 PM
So far I have done this one 6 or 8 bikes. Several road bikes spaced to fit Sturmey Archer 3 speed hubs. Last one was for a mid 80's Schwinn roadbike that I installed a wheel with a Bendix coaster brake hub. Just check dropout symmetry as described on Harris site. Look for string method about 1/2 way down the page.

http://www.sheldonbrown.com/frame-spacing.html



Robert
JohnDThompson
03-17-09, 02:07 PM
Hi,

I scored some awesome parts that were tossed in the dumpster behind my LBC:
A mid-90s Trek Mountain Track frame (my second) and an Shimano 3S hub laced to some tacoed steel rim.

The frame is a touch rusty, but fine, and the hub works okay as well. My original intent was to use the two together, but the Trek has 130mm width while the hub is 114mm. I've read about cold setting, where one can press apart dropouts to fit WIDER hubs, but I've never heard of anyone making the dropouts closer together. Is it roughly the same process? Has anyone done this before? I'm willing to take chances because, after all, I didn't pay a dime for the frame.

thanks!
You can, but each time you cold set it work hardens the tube and produces a stress raiser, and increases the risk of eventual failure. Why not just use some spacers on the axle to take up the slack?