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Convert my old Motobecane?(5 posts)

Convert my old Motobecane?VVS
Dec 25, 2002 7:58 PM
It's circa 1972 10sp with 27" wheels. Can the hub be readily converted? For an economical fixie, my alternative is to know what to look for if this isn't it. Any suggestions? (Live in NJ, ride a 60cm Trek w 59cm TT). Thanks...
re: Convert my old Motobecane?desmo
Dec 25, 2002 9:02 PM
You might get lucky on the rear spacing with the 5 speed hub. Try pulling off the freewheel, threading on a track cog, and see where the chainline ends up to the inner chainring. I just did one with a Campy hub 5 speed hub on a early 70's frame and it came out perfect without any re-dish or moving spacers around on the axels. If the Moto was a decent model with forged dropouts it will be an ideal candidate. Even if it was a cheapee, it should still be worthwhile as a "town fixie".
It's an easy conversion but you might need a new wheelDave Hickey
Dec 26, 2002 4:14 AM
If the rear wheel is french threading, you'll need a french threaded cog. They can be found but it's difficult.
Further research...Dave Hickey
Dec 26, 2002 8:13 AM
According to Sheldon Brown

"French thread freewheels used a smaller diameter attachment to the hub. Neither the freewheels nor the hubs are interchangeable with anything else. Fortunately, they are quite rare, virtually all French bicycles sold in the U.S. had standard British/I.S.O. freewheel threads."

If it's a US sold bike, you should be OK.
re: Convert my old Motobecane?Steve_0
Dec 26, 2002 5:52 AM
That bike is a perfect candiate....just remove the freewheel and thread the cog on. Use a casette spacer or two if you need to straighten the chainline. Worse case (but probably not necessary) redish the wheel alitte.

I'm unfamiliar with french hubs; if Dave hickey is correct on threading problems, NASHBAR has complete wheels, 27 inch, freewheel hubs for 70 bucks.