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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4
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2answers
325 views

I want to covert my bike from a 7 to 9 speed. I have a Shimano 600 derailleur. Will this work or what would you advise as affordable upgrade?

I want to covert my 7 speed to 9. Currently I have a Shimano 600 derailleur. What parts do I need to make this work?
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2answers
113 views

How can I remove my stuck freewheel?

I have been trying for days to remove my freewheel using a freewheel tool. I have been using an adjustable spanner for now but it still is not moving. Am I not strong enough? Or is there another trick ...
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1answer
101 views

Removing 2 bike wheel nuts that move simultaneously when I turn them?

I have recently removed my mountain bike's rear wheel and there are two nuts that I can't remove because when I use a spanner and turn one end the other end turns as well and I cannot remove them. ...
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63 views

Freewheel identification, removal, disassemble

I have a 2021 Schwinn High Timbre 27.5" mountain bike with a bent rear axle and grinding bearings. I need to overhaul the hub, but I cannot get the 7-speed freewheel off. I don't know who the ...
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2answers
1k views

How to adjust drivetrain so I don't pedal empty air?

You might know what I'm talking about: coast a bit, then start a pedal stroke, and there may be zero resistance for a part of the cycle (let's say 30 degrees) like you're pedalling empty air. Then the ...
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1answer
112 views

Rear wheel not aligned with frame but cog and crank is aligned

My bike was previously a 26er mtb 3x7speed and I converted it now to be a single speed freewheel bike. Is the bike safe to use if the rear wheel is not straight to the frame? It is closer to the drive ...
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1answer
72 views

Is my bike safe to use if cogs and crank is not that aligned?

Hey guys is it fine if my freewheel bike which is single speed is not that straight with its chain line, because my cogs and crank arent that straight but it is also not that far, im thinking if it is ...
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1answer
123 views

Do SunTour freewheels have uneven cog spacing?

I have a Suntour freewheel (6 spd, "Perfect" model) that has unequal spacer widths. The spacer between the top and bottom 3 speeds is wider than the other 4 spacers. I purchased the bike ...
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1answer
76 views

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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3answers
127 views

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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6answers
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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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1answer
56 views

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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2answers
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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2answers
386 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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2answers
392 views

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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1answer
73 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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3answers
2k views

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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1answer
126 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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2answers
836 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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2answers
2k views

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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1answer
501 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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2answers
413 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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8answers
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
147 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
775 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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1answer
598 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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1answer
154 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
536 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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2answers
216 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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2answers
1k views

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
47 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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2answers
186 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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1answer
145 views

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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2answers
285 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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0answers
44 views

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
184 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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2answers
325 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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0answers
60 views

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 ...
4
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1answer
111 views

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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1answer
327 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 ...
2
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1answer
276 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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1answer
159 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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2answers
254 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 ...
2
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1answer
200 views

Shimano MF-Z012 5 Speed Freewheel Shims

So after 35 years I have removed the Shimano freewheel from my original Puch racer, stripped and cleaned it and put it back together withoit losing any bearings. Phew. It was very gunged up. But ...
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2answers
804 views

Switching a 11 speed cassette+wheel with a 8 speed freewheel+wheel. Any compatibility issues?

I'm trying to get a pair of training wheels to swap out for my race wheels. I dug up a pair of freewheel compatible wheels and I'm trying to buy freewheels now to fit the bike. The bike's drivetrain ...
2
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1answer
104 views

12-32 freewheel cluster?

Does anyone manufacture a 12-32 7-speed freewheel cluster to replace the current 13-28 on my 20" Dahon, with a view to touring with panniers? If that's impossible, & I decide to buy a 20" freehub (...
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1answer
157 views

Freewheel is not making noises [closed]

Freewheel on my bike is not making any clicking sounds like it used to when I bought the bike from the bike shop. I got the bike serviced last month due to brake making screeching noises and the rear ...
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3answers
165 views

Converting a KHS FLITE 223 into a freewheel fixie?

I have this KHS Road bike that I got back in high school and was wondering if I'm able to convert it into a freewheel fixie (I think that's the right term) The bike does have vertical dropouts. Would ...
3
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2answers
135 views

Freewheel disassembly problem

This is a cheapo Chinese freewheel, probably from a Walmart bicycle, etc. It's unusually heavy compared to my mountain bike's freewheel. I'm just trying to see if I can disassemble it. It's a learning ...
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2answers
488 views

Over-locknut dimension (hub distance) (cup depth) changed after 10.000km

Recently I wanted to replace my bearings and spotted something strange. My Over Locknut Dimension has reduced by 7mm. You can spot the difference when you compare it to the new hub: Can this happen ...

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