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The freewheel is a ratcheting mechanism, that coupled with a set of gears, is that threaded onto the rear hub of a bike. The freewheel allows the rear wheel to engage and move when the pedals are spun forward, but coast freely when the pedals are stationary or spun backwards.

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2answers
34 views

Acera rear derailleur / freewheel compatibility

I'm looking at buying an e-bike conversion kit with a rear geared hub motor that requires a freewheel. On my current bicycle, I've an 8 sprocket cassette (Shimano HG CS-HG41-8an) and my rear ...
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1answer
29 views

Freewheel vs cassette geared hub motors serviceability

With ebike conversion kits there appears to be 2 types of rear hub motors: the ones that accept a cassette and a freewheel (see the image below from this aliexpress item) Is the freewheel option more ...
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2answers
57 views

Raleigh Nitro MTB - 5-7 speed freewheel conversion - 135mm spacing

I have a Raleigh Nitro Mountain Bike that I want to convert from a 5 to a 7 speed freewheel. The rear drop-out spacing is 135mm. Am I right in thinking that all I need to do is get a rear wheel that ...
3
votes
1answer
63 views

Mountain bike freewheel replacement

My freewheel pawls recently shattered and I was wondering if the new one I am about to order will work. New freewheel at ebay The only difference I noticed was the new sprocket is more spread out.
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2answers
66 views

Chain skipping on new single speed freewheeel

I just got a Colnago Master Arabesque single speed conversion from a friend who moved abroad. It's set up as a fixie on a flip flop Hub. I flipped the wheel and installed a new single speed 1/8 ...
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1answer
72 views

E wheel needs an 8sp free wheel instead of cassette

My new electric wheel requires a free wheel set up. I have an 8 speed Shimano cassette which obviously won’t work. Can I find a free wheel that will be similar to my cassette? I realize I may have to ...
1
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1answer
55 views

How long does a freewheel cog last?

4 months I asked this question when I changed my chain: What can be done wrong changing the chain in a single speed? and the solution was to change the freewheel cog. I decided to "invest" in the not ...
2
votes
2answers
99 views

Would the shimano freewheel removal tool be roughly compatible with a Sram/shimano cassette?

I have a bike with a sram Cassette and a bike with (i think) a shimano freewheel. According to https://bicycles.stackexchange.com/a/43506/38471 and other sources, in text atleast the two tools to ...
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1answer
55 views

Derailleur tension causing chain friction?

I have a foldie which recently seemed a bit harder to pedal. Specifically back pedaling seems harder than it should be (if I kick the pedal back, it barely travels a quarter or half turn. I noticed ...
6
votes
5answers
460 views

Could I replace a hub on a wheel?

I have a freewheel and I keep bending the axle, however the rim, spokes and tire are all fine, does anyone think it would be possible to unscrew the spokes, buy a new hub that has a freehub, install ...
2
votes
1answer
83 views

What kind of freewheel/cassette is this? [duplicate]

I bought some old bike from netherlands, I wanted to restore it. Rear wheel is broken and I wanted to exchange it but there is this strange freewheel which I cannot identify, do you have any idea what ...
3
votes
1answer
25 views

Freewheel to cassette Conversion 2016 Windsor Wellington 2.0

I am a fit but heavy rider. I am looking to change out my stock wheel set on my Windsor Wellington 2.0 (Bikes Direct.com) to a Veulta HD 36 700c spoke wheelset. I'm just wondering and hoping my ...
3
votes
1answer
282 views

Freehub vs freewheel in a singlespeed?

I'd like to know what is better in terms of maintenance and reliability in the long term. I currently have a flip flop hub with a freewheel which I had to replace recently. For what I saw there were ...
3
votes
2answers
598 views

Best option to upgrade 7-speed bike to higher gears

I have recently bought Giant Escape 3 hybrid bike that came with: Shimano FC-TY501 28/38/48 chainset 8/7/6-speed compatible Shimano Tourney RD-TY500 7/6-speed rear derailleur Shimano MF-TZ31 14-34T "...
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vote
3answers
117 views

cogs for front wheel

See this wheel. Can I put two freewheel cogs on it, instead of one freewheel and one fixed? (driving clock and anti clock, so both driving forward) Then get this wheel onto front steel fork, by ...
2
votes
1answer
196 views

What do I need to replace my singlespeed freewheel cog?

As I learned in this question, the cog of my freewheel are damaged and should be replaced. I've been searching for some information but I'm still not sure of what I need. At the beginning I though I ...
5
votes
2answers
140 views

What model/make are this Freewheel and Freehub?

I am in the process of overhauling my old Motobécane racing bike and I'd like to replace the freewheel, if reasonable. However, there is no indication of who made it (the bike shop couldn't help) and ...
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votes
1answer
89 views

Bearings Cooked? [closed]

I have a Trek mountain bike. It is not new by any means. The back wheel should not freewheel, correct? I am having the back wheel spin freely and I question the bearings.
2
votes
2answers
248 views

Changing the rear wheel offset to allow space for freewheel

I've had some new wheels built for a steel frame with a 126mm rear dropout spacing. The rear hub takes a 7 speed screw-on freewheel. At the moment the rim sits perfectly central to the chainstays when ...
1
vote
0answers
61 views

Schwinn sidewinder 21 gear slipping?

If rear tire is off the ground, the wheel will spin when pedaled. When wheel is on the ground the pedals will move the chain in any gear but will not move the rear wheel. The chain is not losing ...
4
votes
2answers
911 views

Freewheel not working properly

I have an older Trek Mtn bike with Shimano components. Just today the pedal started spinning without turning the wheel. I can pedal forward and backwards and occasionally it will start turning the ...
5
votes
2answers
320 views

Help me understand my 8-speed uniglide compatibility issue

I have a Dura Ace 8-speed uniglide rear hub/freewheel marked 'Integrated 8 SIS' and an 8 speed uniglide 14-21T cassette. Two issues - the first being that the smallest cog needs to be a special 32mm ...
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0answers
295 views

7 speed cassette on a direct drive trainer from freewheel bike

In 2011, I bought a cheap bike from Walmart. It's done fine by me on the ride or two I take per year, but I'm looking to enhance my home gym a bit and was looking to grab a direct drive trainer. The ...
2
votes
2answers
346 views

Can I add a gear to my Tourney 14-34T freewheel

tl;dr Is there a way to easily add a smaller chainring to a tourney 7 speed 14-34 freewheel without replacing the hub/wheel Details: I have a 13" Fuji Women's Adventure 3.0. I've been shopping for a ...
1
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2answers
79 views

Easiest fix for this transmission problem? [duplicate]

My bike is an adult mountain bike with different gear shifts and all. Suddenly my rear tire stopped going but the chain and everything still works - the gear and chain still spins. What is the ...
3
votes
1answer
100 views

What 70's/80's freewheel threading is most common in central or eastern Europe?

Just interested to know? For example, if an 80's steel frame road bike in Europe came with Suzue high flanged hubs (94mm spacing front and 126mm rear), what type of freewheel threading would be ...
1
vote
1answer
59 views

Help identifying Freewheel lockring

I've recently acquired a retro steel bike which needs some work. Has anyone ever seen a freewheel with this type of locking system? I haven't been able to find any tool which seems like it would be ...
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votes
2answers
1k views

Is it possible to upgrade a 6 speed mountain bike to 7 or 8 speed?

I ride a Hero Sprint, MTB, with 6 gears in rear and 3 in the front. I am thinking about upgrading my 6 gears to something like 7 or 8. Is it possible, if yes, how much does it cost, and what are the ...
3
votes
1answer
226 views

Can I replace 11 speed 11-40t with a 11-42t or 11-46t staying with Shimano XT family?

Can I replace the 11 speed 11-40t cassette with a 11-42t or 11-46t? What other parts will be needed to complete job? I.e. new chain, long chain, spacers?
1
vote
1answer
310 views

Remove Maillard freewheel

I'm trying to open the freewheel from an old bike that I have, but I can't find how. I even searched for tutorials on the Internet but I can't find one that looks like mine (please see picture). And ...
0
votes
1answer
583 views

Rear tire wobbling and feels “tight.” Is it likely to be axle issue or no?

I've noticed that my bike's rear tire has slowly been downgrading, and beginning to wobble more and more. I took no notice of it because it did not affect the bike riding at first, but slowly started ...
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0answers
181 views

Freehub stuck on wheel

The freehub doesn't quite roll as smoothly as before. Pedalling back actually turns the wheel back if it's free spinning. So we thought we'd take the body off to clean it and see if anythings broken ...
1
vote
1answer
3k views

How to remove this Shimano cassette (actually: freewheel)?

A neighbour approached me to help him with removing the cassette from the wheel in the picture below. I am familiar with the modern Shimano lockring but would appreciate tips how to remove this one.
2
votes
2answers
352 views

Shimano freewheel removal

I am having trouble removing the axle/skewer from the below MF-ZO15 shimano freewheel. It is threaded and secured with bolts rather than quick release and the only way I can see to remove it is using ...
4
votes
1answer
331 views

Freewheel in vinegar

I'm renovating an older bike. I took the 6 speed freewheel (Shimano mf-tz20) off because it was rusty, disassembled, chucked the parts in vinegar overnight. The rust came off, but so did the goldish ...
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0answers
241 views

Rear wheel making clanking noise while coasting?

After replacing the rear cassette there is now this strange clunking noise that I can feel and hear whenever I'm moving but not pedalling. The noise is gone when I pedal. It makes the bike almost ...
0
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1answer
385 views

Campagnolo Zonda Ratchet sound

I bought a Campagnolo Zonda C17 recently and noticed how quiet the ratcheting noise was. My friend owns a pair of Zondas but his one is really loud. why is mine silent? i use a 15 cassette.
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4answers
6k views

What freewheel mechanism designs are used in bicycles?

What are the various freehub mechanism designs that have been designed and or put into production? (doesn't need to have been made necessarily!) A good post will contain: A description of the design,...
3
votes
2answers
248 views

What wheels can I buy that fit this Shimano UG 5 speed freewheel?

I am refurbishing an old 70s/80s bicycle, I have everything ready but the wheels, what set of wheels should I purchase that will fit this freewheel from Shimano?
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2answers
176 views

Changing the free wheel

I'm thinking of changing from 8 speed to 9 speed. What are things I should keep in mind before changing free wheel?
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1answer
444 views

Ebike gear conversion

I have a 29" mountain bike I'm going to put a motor on. I'm going to replace the back wheel with a 26" and my question is about the gears. I need two of them in the same side to freewheel ...
1
vote
2answers
713 views

15T Freewheel Which Works on Flip Flop Hub

I am building a Single Speed Freewheel and I read somewhere that manufactures don't make 15T freewheels that fit on a Flip Flop hub; only 16t and bigger. However, I would like a gain ratio above 3 and ...
0
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2answers
518 views

Why are my gears moving but my wheels not turning?

I have two bikes that when I pedal (yes I am pedaling in the correct direction) the gears turn freely, but the wheels don't. One of them I was riding and it felt like it had shifted while I was ...
1
vote
1answer
109 views

Freewheel or sprockets?

I ride a MTB with Shimano components and increasingly when I pedal there is a slippage (no noise or resistance) occurring. Might I Need to replace the freewheel mechanism or is this just the sprocket/...
4
votes
1answer
509 views

Is this an unsuitable cassette lockring tool?

I can't get my lockring tool to fit my cassette's lockring. The tool is about 1mm i diameter bigger than the lockring, although they have "hills and valleys" that line up. Here's the lockring: Here'...
1
vote
2answers
477 views

Can a bmx hub support a 7 speed mountain bike freewheel?

Been wanting to build a new set of wheels for my trail rig. Since my bike uses rim brakes, which work good enough to not upgrade to disc's, I'm going to re-use my old rims. Problem is they are 48 ...
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votes
3answers
716 views

Has anyone here ever threaded the left end of a rear hub? (To add a left-side freewheel)

I have found endless opinions on mass-manufactured hubs that are either left-side-threaded or 'reversible' or etc. I am not seeking information or opinions on these. I am also aware of the available ...
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votes
1answer
818 views

When I pedal the back wheel doesn't turn [closed]

When I pedal my back wheel of my BMX bike doesn't turn. About a month ago I took my bike to the shop and they said it would be a 200 dollar fix with my tune up. It all started with a while ago, I ...
2
votes
1answer
390 views

What is a good replacement for my MF-Z012 6 speed wind on cassette?

I'm trying to find a good replacement for my MF-Z012 6 speed wind on cassette. Thing is, I've upgraded my bike with '93 Dura-Ace rear and front derailleurs. Trouble is they are 7-speed compatible. ...
3
votes
2answers
223 views

Regina Extra Freewheel or Cassette

I have a road bike (Carlton Flyer, 1977) with a regina extra rear cassette. I'm interested in downgearing it (i live on a massive hill) and am trying to identify whether it is a freewheel or cassette ...