Confused about freewheels
02-21-04, 09:23 PM
#1
Junior Member
Thread Starter
Join Date: Feb 2004
Posts: 13
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Confused about freewheels
I have a bike with a very rusty and worn freewheel. How do I tell what replacement type to get? This is an old made in Taiwan bike with a 6 cog rear (12-speed bike). The rear deraileur is Shimano Tourney. Also the round plastic thingy which goes alongside the large cog is chewed up, is that a standard replacement part. I noticed some bikes have a metal ring instead of plastic.
Does the fact that this is a Shimao derailleur mean the freewheel is Shimano? Could I replace a 6 cog freewheel with a 5 or 7 cog one? Is the width of the hub a factor? Short of going into a bike shop, is there any way to figure out what I need?
Does the fact that this is a Shimao derailleur mean the freewheel is Shimano? Could I replace a 6 cog freewheel with a 5 or 7 cog one? Is the width of the hub a factor? Short of going into a bike shop, is there any way to figure out what I need?
02-21-04, 09:29 PM
#2
feros ferio
Join Date: Jul 2000
Location: www.ci.encinitas.ca.us
Posts: 21,796
Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
Mentioned: 44 Post(s)
Tagged: 0 Thread(s)
Quoted: 1392 Post(s)
Liked 1,324 Times
in
836 Posts
There are two types of 6-speed freewheels: standard, which require a 126mm (over locknuts dimension, O.L.D.) rear axle, and "ultra," which can be used with a 120mm rear axle. To figure out which you have, simply remove your back wheel and measure the distance between the inside faces of the rear dropouts. If you have a 120mm rear axle and friction shifter, you may substitute a 5-speed freewheel. If you have a 126 and friction shifter, you may substitute a 7-speed, particularly if you toss that damaged plastic spoke protector. (You can probably find a replacement spoke protector if you really want one; I never use them.)
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
02-22-04, 02:19 PM
#3
Not-so-Senior Member
Join Date: Jul 2003
Location: Norfolk, England
Posts: 805
Bikes: Orbea Enol roadie, Fly Micromachine BMX, Fort Track fixed
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Since your derailer is Shimano, I'd definately suggest you get a Shimano freewheel. I'd be surprised if Suntour or any other make would shift as well as a Shimano one (unless you have friction shifters (no clicks), in which case they'll all probably work).
