At 18:30 2/22/2001 +0000, helenmac7 wrote:
>Sturmey FM alloy 1951 good condition just rebuilt with many newparts.
>complete with wingnuts, QR toggle, new trigger, pulley, cable and
>fulcrum clip $160
#### The FM is the famous 4-speed medium ratio hub, with 12.5% increase (from 3rd or "normal") and 14.3% and 33.3% decreases.
Sturmey AM alloy 1953 just rebuilt $85
#### This is the 3-speed, medium range unit, with 15.55 % increase and 13.46% decrease.
At those ages, I would expect to find the threaded-cog drivers. With the AW 3-speed, I have been able to substitute the later 3-splined cog drivers for the threaded cog carrier. This makes lateral line adjustment easy, and gives much easier cog changes. Besides, I think the splined cogs are much more likely to still be in a box at the LBS...
harvey "I'd like an FM alloy, but not enough to buy one" sachs
allprices not including
>shipping . Pete