Classic & Vintage - Huret challenger - how many speeds?
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04-24-11, 01:15 PM
I just bought a 10speeds 1977 Gitane with Huret Challenger derailleur.
The wheels are in a real bad shape, so, if i put a "modern" rear wheel, with a "modern" rear hub (Tiagra, 105) how many gears can the old Huret handle? Or is just wrong/stupid?
04-24-11, 01:35 PM
If it wasn't wrong or stupid, what would be the point of doing it? ;)
It depends on the width of the dropouts. Sheldon Brown goes into more detail here:
Basically, you have three choices:
Buy a rear wheel with an ISO-threaded hub and stick with a 5-speed freewheel. IRD makes modern (but pricey) freewheels that will shift like a modern cassette, or you can get one with older-style teeth from Sunrace or Falcon. If you want more than 28t for your low gear, you'll need the IRD or an old Suntour cassette.
Use the same ISO hub with a longer axle and some spacers to mount a 6-speed freewheel. This will let you use a cheaper Shimano freewheel.
Cold-set the frame and use a cassette hub. You'll probably have trouble spreading enough to get much more than a 7-speed cassette on there. The axle will be stronger since the outboard bearings are at the edge of the hub instead of the wheel.
04-24-11, 01:43 PM
Thank a lot! It a new perspective!
My frame has a spacing of 120mm.
04-24-11, 03:26 PM
My Huret Challenger shifts across 6 cogs just fine but won't do 7.
04-24-11, 11:32 PM
This may or may not work.
I fit an Huret ECO (all steel version of the Challenger) to my bike for kicks. It shifted across all 8 cogs only when I removed the plastic part behind the plate that the limit screws go thru. The plastic part was a hair to thick to allow the cage to travel far enough to catch the big cog (25). I put some springs on the limit screws to maintain some tension and keep the adjustment and it shifted fine across all 8. I would assume it will cover 9 (10?) also.
The ECO may be just different enough from the Challenger that this may not work and being all steel I had no hesitation to manhandle it to force the change.
As stated above - with 120mm spacing you've got other issues to deal with before getting to this point.
Good luck how ever you go with it.
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