Questions tagged [freewheel]

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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77 views

Do you know what bike this is? I thought Dunelt fleur de lys

It has cable brakes front and rear. Single speed freewheel. Two tone paint (light blue and dark metallic blue). Made from Reynolds 531 tubing.
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Can I replace a Shimano MF-Z012 (freewheel) with a MF-TZ510?

Can I replace a (6-speed) Shimano MF-Z012 with a (6-speed) MF-TZ500 or MF-TZ510 freewheel? Bonus question: apart from the "T" both models seem to belong to a related series. What does the &...
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17k views

How many freewheel thread sizes are there?

I'm buying new freewheel and noticed that not every freewheel can be screwed onto my hub because they have different thread sizes. For example: I've found the following thread size specifications: ...
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What is the max weight an MTB bicycle with a freewheel can handle until it starts putting high stress on the rear axle?

Of course the riding style matters. How hard you go on jumps etc. I don't drive my bicycle that hard. Sometimes i do when im in the mood. My issue is that i am constantly braking my rear axles. It all ...
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Why are trigger shifters so widely used, instead of the twisting grip shifters(revoshift)?

I recently rebuilt my whole bike. It was in terrible condition. I also decided to get a new freewheel with more speeds. While i was doing some research and looking through shifters and freewheels, i ...
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My rear wheel is wobbling much after around 3 months of use. Is there any fix that i could do it or should i replace the wheel?

So i checked the few available solutions. But in my case when I hold the wheel and shake it sideways it is not wobbling it is firm. But when I ride I can see the tyre wobbling and it looks like the ...
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127 views

Does anyone know how to take apart this hub to do a single speed conversion

It's a 5 speed joy tech hub. I've tried all but nothing seems to work. Looks like the smallest driver is threaded. Does anyone know how to remove it ?
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487 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 ...
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325 views

Should the tightness of the QR skewer (rear wheel) affect the freewheel

The tighter I fit my rear QR, the less freely my rear wheel spins. It’s very noticeable. Problem is that when I have the QR quite loose I tend to get a creaky noise from the rear axle under load but ...
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386 views

Freewheel replacement for a touring tandem bike

I have an older touring tandem bike that we use to go on long trips. The gear setup is 3x7. I noticed that we hardly ever use the smallest 3 cogs on the freewheel (of course together with the largest ...
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1answer
817 views

More than 7 speeds on a freewheel? Ok for someone that rides moderately?

I am contemplating going from my 7 speed freewheel to an 8 speed because I want to go from a 14-28 7 speed to a MegaRange 14-34. Problem is my RD will not handle the 34 so if I have to buy a new one ...
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Why does pedalling backwards not move my bike backwards?

On the Mountain bike I have, pedalling backwards moves the chain but doesn't drive the wheels of the bike backwards like you would expect it to. Why is this?
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How does one remove a old French (Maillard) sprocket set from its freewheel?

I assume that the smallest sprocket functions as a lockring and has an outer thread that screws into a mating thread on the freewheel. (I also assume that the other sprockets have inner threads that ...
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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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Freewheel and quick release

I got myself a bike to fix up. I changed the freewheel on it but I don't know how to position the nut after I put on the new freewheel. If I screw it on too deep the chain will be too close to the ...
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Are freewheels really that prone and susceptible to bent axles?

I'm 90kg (198pounds) and I have a 27.5 hard tail mtb 9 speed freewheel and it is quick release. I only use my mtb as a commuter on roads and never on trail. I run my tires at 35-40psi. Ever since i ...
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How can I lower the gear ratio on my son's bike?

I got a SH Commencal 24" MTB for my son. He loves it - except on climbing steep slopes where he runs out of steam. It comes with a 7-speed 14-28T freewheel (Shimano MF TZ21) + Acera derailleur, ...
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70 views

Which freewheel/cassette for this bike?

I was recently given a mountain bike for free, which I could fix for use by my husband. It is just missing the rear wheel and freewheel/cassette. As far as I can tell it would have been a 7 speed one,...
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1answer
122 views

Is possible to mount an existing freewheel on a fixie wheel?

Would it be possible to mount a freewheel from an existing wheel on thie following type of wheel made for fixies? Or do I need a different axis for the rear wheel such as the one below?
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14k views

Chain “vibrates” on higher gears

My freewheel that I have installed myself only 1.5 years ago has totally worn out by the moment and so I just had it replaced along with a chain at the workshop. I'm still concerned though about the ...
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203 views

How I can remove this freewheel (without “destroying” it)?

How I can remove this freewheel (without "destructing" it) ? By "destructive removal" I mean this: https://www.parktool.com/blog/repair-help/freewheel-destructive-removal P.S. I ...
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772 views

How to get a 7-speed bike with a freewheel on a direct drive trainer

My wife has a 2017 Specialized Alibi Step Through. Specs can be found here: https://www.specialized.com/us/en/alibi-step-through/p/154232?color=&searchText=B6617-7402 I have recently ordered a ...
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Is it possible to fit a 36 hole rim to a 32 hole hub?

I recently had my rear wheel replaced because the old one was bent. Everything about the new wheel was correct except that the shopkeeper ordered a 36 hole rim instead of 32 one. Due to this he told ...
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409 views

SRAM XD driver body wear

I was climbing a steep hill, and all of a sudden my pedals started spinning freely. The freewheel had given up. I removed the cassette and found the XD driver looking like this: The areas around the ...
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261 views

Freewheel threading on Miche flip-flop hub

I'm currently building a parts list for a new single-speed bike. In the process, I came across a nice looking flip-flop hub from Miche: The "Primato Pista/Strada" I figured that adding the fixed ...
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2answers
7k 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 ...
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4k views

What if both wheels were powered by pedalling?

Only the rear wheel of a bike is connected to the drivetrain in order to propel the bike forward. I assume the choice of rear wheel instead of the front wheel is for stability (e.g. avoiding '...
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1answer
138 views

Freewheel engaging sporadically when turned backwards at low speed

I noticed that when going at low speed without pedalling the freewheel sometimes seems to engage anyway and pulling the chain until there is enough tension ( as the rear derailleur contracts due to ...
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2answers
743 views

Just replaced axle on rear wheel. It is loose at first but as soon as I ride it, it tightens and wheel no longer rotates. Help!

Yesterday, the axle on my rear wheel snapped. I spent today trying to replace it with a new axle of same length. Before doing so, I checked bearings, and they seemed ok. When I put the hardware on the ...
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489 views

Freewheel with lock ring, what is this?

I rescued a bike from the trash and want to convert from 7 speed to 9 speed. The biggest sprocket has "Lock Ring Type" printed on, so I assumed it was a 7 speed cassette (and I wanted to ...
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new freehub body seems too tight after installation

Is it normal for a new freehub body to feel tight. I changed a freehub body on a Velocity hub and it does not spin as freely as I am accustom to seeing on other hubs (and the original Velocity hub).
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Should I replace all wheel bearings when only some are worn?

I just ripped apart my mom's mountain bike's rear hub. One of the bearings was incredibly rough, so I replaced it, and the other one was smooth, but didn't turn very easily. Since I didn't have a ...
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1answer
125 views

How to disassemble pinned sprockets from a freewheel

I have a shimano freewheel like this one Picture taken from Cassette Removal & Installation I need to use separate sprockets from it but I'm not sure how to extract them without causing any ...
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1answer
458 views

Can a freewheel hub be swapped out for a cassette hub?

I have a very cheap, yet very old, 26" Chinese rear wheel with a freewheel hub mounted on my MTB. The hub, bearings and cones are shot, but the rim is still good. I have two Shimano cassette hubs ...
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Old freewheel removal

I have an old rear wheel - I think its from a Raleigh Arena roadbike from the late 70s or early 80s. There are broken spokes that require the sprockets removed to access. I've done this plenty of ...
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single speed freewheel Shimano SF MX 30 vs Shimano SF-1200

What is the difference between: single speed freewheel Shimano SF MX 30 and Shimano SF-1200 ? Why those freewheels donesn't appear on shimano website? P.S. From the pictures it's clear that the ...
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1answer
45 views

White Industries ENO on a Hope hub

There seem to be two approaches to single speed freewheels: Screw on to the hub a combined freewheel/sprocket combination (eg. White Industries ENO) Slide on a single sprocket to an existing splined ...
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174 views

Freewheel or Cassette

Can someone help me, I currently have a 9 speed cassette on my road bike, I would like to get another pair of wheels with larger tyres so I can swap easy depending on where I'm going without having to ...
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2answers
183 views

Removing an unusual freewheel

Could someone tell me which tool I can use to remove the freewheel in the attached picture please. I do have a couple of freewheel tools but they don't fit this particular freewheel. Thanks Chris
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Possible drivetrain problem?

I recently bought a bike and upon riding it and coasting for a relatively short time I heard a noise that sounded like the chain sort of clicking louder than the freewheel, then eventually the chain ...
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2answers
280 views

Looking for advice - cracked rear hub along bearing races - How to buy a new rear wheel?

TL;DR below My bicycle is an old used Trek hybrid (1994?) that I got a few years back. When replacing the tires recently I discovered that my rear axle was significantly bent (not surprising for a ...
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My bicycle's rear wheel is wobbling

I have a fat bike (Giant Momentum Iride Rocker 3). It says this bike didn't design for offroading but I have one bike and I use it on single-tracks (not very technical) and doing long trips (about ...
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1answer
263 views

How does one remove the lockring and sprockets from a Shimano MF-HG20 freewheel?

Getting the freewheel off the hub is no problem; what I want to do is to get the sprockets off the freewheel. I have tried tapping the lockring in an anti-clockwise direction with a steel punch, but ...
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1answer
236 views

Can I fit an MTB freewheel onto my road bike?

I am looking to replace my 7 speed 12-18t freewheel on my old road bike to a different 7 speed (something like 14-28t) for easier hill climbs. Is it possible to do so and what are some possible ...
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140 views

7 speed freewheel

I have 7 speed freewheel on Carrera Zelos. I want to upgrade to 8 speed but can t find any freewheel. How do I do it? Its my first road bike as I normally ride downhills and wanted to mix it up ...
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60k views

how to reassemble mountain bike rear wheel hub and bearings

So I thought I would sort out my wheel bearings (after asking a few questions here first). Did the front without much of a problem, (reused the existing bearings at the moment, had not got round to ...
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4answers
26k views

Why is my freewheel slipping?

My freewheel tarted slipping this week. It slips most from a stop with no pressure snapping to significant pressure on the pedals. Slipping may be the wrong term as it really isn't engaging. Once it "...
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3answers
2k views

Is there such a thing as 'eBike specific' freewheel?

I've recently had the LBS replace the freewheel on my eBike after 500 ish miles of riding. The sprockets were not worn out, instead the freewheel bearing (not the hub bearing) had become loose. It ...
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2answers
249 views

MTB freewheel not moving back wheel after change of tyre

I changed my MTB tyres to a slick set to use on road and also to connect to a turbo trainer. After changing the tyre, I put the wheel back in, and see that the pedals are moving the chain and the ...
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1answer
4k 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 ...

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