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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4answers
2k views

Why is my chain riding up and skipping teeth on the freewheel?

Due to a number of reasons, I would like to keep my freewheel at all costs (It's a Sachs freewheel, the bike has all sorts of more 'vintage' components, and they're hard to come by). From reading all ...
5
votes
0answers
66 views

Is changing wheel necessary if freewheel hub with a different speed then previous is attached?

Approx. 3 weeks ago I have found an abandoned frame (including steering wheel, fork, brakes, pedals and shifting gears attached to it). I decided to use it to build a new bicycle since only recently ...
6
votes
5answers
16k views

What should I use to lubricate a freehub?

I've noticed my freehub has gotten quite a bit louder over the last few months. Several people have recommended that I lubricate the freewheel by tipping the bike on its side and dripping lubricant ...
3
votes
2answers
38k views

When I pedal the rear wheel is not turning

I have a very old bike. It used to work perfectly, but just recently it happened that when I pedal the rear wheel is not turning. Just for notice I pedal in the correct direction, brakes are not ...
0
votes
1answer
23 views

Can a 7 speed torpedo cable index a modern day 7 speed freewheel?

I have an old cable from a 7 speed Torpedo internal hub and am wondering if it will properly index a modern day 7 speed freewheel or if it is way off. Is there an easy way to check this? Just ...
3
votes
2answers
145 views

Reverse Gear in Bicycles

For an ordinary bicycle (neither fixed gear nor capable of changing any gears). Is it possible to modify it to have a reverse gear on it? (i.e. reverse pedaling causes the bicycle to go backward) ...
19
votes
7answers
30k views

Why are higher-end freewheels so much louder when coasting?

I tend to ride relatively modest gear (Tiagra/Ultegra), but when I'm riding near higher-end bikes, I sometimes notice that the clicking sound that comes from their cassette/free-wheel while coasting ...
6
votes
3answers
295 views

Are all ready-made wheels sold “cassette compatible” only?

I will have to change my wheels on my old trusty late-80s Peugeot (PS28) soon. The rear wheel is mounted with a freewheel-type 6-speed hub (not cassette). I was wondering if all ready-made wheels ...
3
votes
1answer
78 views

Freewheel not engaging when temperature below about -20c/-4f. What is freezing?

Is it moisture/slush in the freewheel that is not evaporating because I have to keep the bike outside all winter? Then it might freeze when the temperature goes low enough. How long would it take to ...
3
votes
4answers
126 views

Tyre rubbing against Frame

I'm new here and signed up to seek help. Bicycle : Fixie, it came with fixed gear and freewheel, I use the freewheel cog. Today, after a tire and tube replacement it now rubs on the frame. The new ...
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votes
2answers
100 views

Using only 7 speeds of an 8 speed freewheel is ok?

I currently have a 7 speed Shimano RD (rear derailleur) that is working perfectly with the stock 7 speed freewheel which is 14-28. Shimano has a MegaRange 7 speed freewheel that is 14-34 but the ...
0
votes
2answers
40 views

29" Ascension mountain bike by Schwinn [duplicate]

My freewheel stopped working. I can still pedal forward, but not backward. What's wrong with it?
0
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2answers
46 views

freewheel stress and possible difficult removal with super underdrive gear?

I tried to research this online but didn't see any examples of this exact concern, which is if I gear down a very cheap mountain bike that has a 7 speed freewheel, do I run the risk of creating so ...
-4
votes
1answer
86 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 ...
2
votes
3answers
8k 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 ...
3
votes
3answers
1k views

Chain skipping on new freewheel and chain setup - What went wrong?

BACKGROUND NOTE: The bike is a 1992 Univega MTB that originally came with 6-speed SIS with a triple chainring. I removed the SIS shifter when it broke, and went with a friction shifter. The bike is ...
3
votes
1answer
207 views

Freewheel sprocket locking up

I was just out riding my bike. Its nothing fancy, just a €300 single-speed with with a flip-flop hub. I usually ride the freewheel side. Today it made some weird noises and decided to lock up / be a ...
4
votes
1answer
4k 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: ...
1
vote
1answer
126 views

Maillard Freewheel refurbishing

I have a Maillard freewheel, big cog stamped 10 - 84, which i have taken apart, cleaned, lubed, and reassembled following the excellent youtube by RJ the bike guy . i ...
2
votes
4answers
155 views

Direction of chain whip

Is there an easy way of working out which way round to apply a chain whip to a cassette for its removal? I've taken plenty of them off in my time but always end up having a couple of tries at it ...
2
votes
1answer
72 views

What is this cogset body?

I have some backlash (free movement) in my body of cogset, so I try to dissemble my cogset to discover this weird body: I'm trying to find a new one but I don't know how to call it. Any idea how ...
3
votes
3answers
13k views

What tool is needed to remove a Shimano HG-50 freewheel?

What tool is needed to remove a Shimano HG-50 freewheel from the wheel hub? It looks like a 12mm or 13mm Allen key. Will this do it or is there some detail I have missed?
1
vote
2answers
75 views

Where can I find a compact/ultra 7 speed freewheel?

Does anyone still make these? I'm aware that I could coldset my frame for a wider spacing, but I'm interested to know if it's still possible to buy a compact freewheel (apart from via e-bay or ...
5
votes
3answers
15k views

Advantages / disadvantages of freecoaster and cassette hubs

I've been reading a lot over the past few days about BMX, and last night I watched a few videos like this one. I have been seeing the words "freecoaster" and "cassette" around a lot, and I was curious ...
3
votes
1answer
329 views

Can we turn a fixie bike into a freewheeler?

I'm new to the fixie world. I'm planning to buy a fixie bike though, but to start right away would be difficult especially when I'm pedaling down hill. Is it possible to change the fixie bike into the ...
2
votes
2answers
2k views

Planning on building a fixed-gear/single-speed from an old Schwinn World. What new parts will I need?

I think I want a flip flop hub, to keep my options open. If I get one off amazon, do I need to buy a freewheel and fixed-gear cog as well, or will those come with the hub? Also, does the hub have to ...
3
votes
2answers
166 views

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 ...
2
votes
0answers
57 views

Can you identify this Sachs hub?

I recently picked this up along with a couple of old wheels. I don't know it's age or history. I've only got as far as identifying it as a Sachs. There are no other markings apart from the logo ...
1
vote
1answer
201 views

Is Sram PG850 cassette a substitute for Shimano TZ31 freewheel?

I need your advice. I have a Giant Escape 2014 UK model bike and it's time to change the chain and the original cassette/freewheel, which are worn out. My question is, if I get this Sram PG850 ...
2
votes
3answers
231 views

29" freewheel ruined (slipping)

Some time ago I gave a 29" bike to a person for a ride. Someway he ruined the freewheel (it had a shimano freewheel) - the 2 smallest cogs were badly slipping. Now I put another freewheel (also ...
0
votes
1answer
159 views

How to fix a clanking rear wheel/flywheel

On my single speed--a POS Bikes Direct bike--the rear wheel makes a clunking noise every time I pedal. I think it is coming from the freewheel and it's basically a CLINK! CLONK! noise that is driving ...
2
votes
1answer
157 views

Finding a single speed kit for an old campagnolo from 1997 with screw on freehub

I have an old Campagnolo from 1997 that I want to turn into an single speed. My problem is finding a kit that will fit the freehub. The outer diameter of this freehub including teeth is 34 mm, but ...
1
vote
2answers
1k views

How can I fix my back wheel's wobbling?

On my single speed bike--a POS J Fixie Cafe CF from BikesDirect--has an issue with its back wheel. The wheel wobbles 1cm back and forth when pulled/pushed from side to side. The freewheel has been ...
4
votes
1answer
1k views

5 speed cassette on 8 speed hub

I just picked up a cheap wheelset to replace the wheels on a vintage bike. The old bike had a 5 speed freewheel (I think. The model printed on it is shimano-ug). The new rear hub is a shimano fh-rm30 ...
1
vote
1answer
77 views

Replace freewheel with freehub?

I have a Motobecane Super Mirage that I bought in 1977. I have another bike for regular use, and I've decided to completely rebuild the older one. I determined today that the freewheel teeth are worn ...
26
votes
2answers
7k views

Why does pedalling backwards not move my bike backwards?

On the BMX bike I have, pedaling backwards moves the chain but doesn't drive the wheels of the bike backwards like you would expect it to. Why is this?
8
votes
1answer
1k views

When to replace wheel bearings

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 ...
0
votes
2answers
149 views

Axle flex under load normal for freewheel hub?

When using a freewheel'd hub is it normal for the drive side of the axle to flex a little bit? I replaced the kickstand on my bike and the new one sits closer to the rear tire with about 2 mm ...
1
vote
2answers
1k views

How to recognise a 6-speed freewheel compatible hub?

I need to change the freewheel and the hub on my road bike and have been looking for a suitable replacement. I wish to keep my rim so I will rebuild the wheel. Also, I want to stay with a 6 speed ...
1
vote
2answers
256 views

QR vs solid axle for freewheel hub

I've heard a lot of folks complaining about freewheel hubs getting bent axles. I have a rigid BSO with a solid rear axle that I occasionally pound on local trails. I've never gotten a bent axle. ...
3
votes
3answers
285 views

What causes frames to break at the (rear) dropouts?

The drive-side dropout and rear axle have broken twice. It's an old-style freewheel, not a freehub+cassette. (I weigh around 100kg, and ride a lot, and have been touring on hilly, gravel roads, with ...
2
votes
1answer
137 views

Can anyone identify this freewheel type?

When googling the types it seemed to most closely match a Atom/Regina but it has 25 24 teeth and is about 3.5cm across. It's from a 1980s Raleigh road bike. But the bike has had a lot of work done to ...
0
votes
2answers
120 views

I have a Schwinn Tempo which has a 6 speed freewheel

I'd like to replace my rear wheel because it isn't able to be fixed to be made true once again. The bike is an older Schwinn Tempo, the rear wheelset has a 6 speed freewheel. Or so that's what the guy ...
0
votes
1answer
326 views

Can i fit a 6 speed wheel onto a 5 speed bike?

I have a 5-speed bike with a buckled back wheel. I have found one on the internet cheap, but it is a 6-speed wheel. Will it fit my bike? Will there be any adaptations needed to the bike to use this ...
1
vote
2answers
2k 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 ...
1
vote
2answers
307 views

Which freewheel remover tool to use on vintage Columbia bike?

I picked up what looks to be a late 80's Columbia 'USA Racing' Women's city bike on Craigslist recently. It needs a new 5 speed freewheel, but I can't seem to figure out which remover tool to use. ...
0
votes
2answers
732 views

Freewheel: 8-speed to replace 6-speed

This is for the Freewheel (Not Cassette Freehub) swapping problem. I would like to know if it is feasible, regarding the axle breakage. Assuming that I have: Good clearance and spacing for ...
1
vote
3answers
397 views

Chain skipping with new chain and freewheel

I've recently (last 6 months) begun riding again after many years away and have begun updating components on my bike (a mid 80s era Fuji). After replacing the rear wheel and freewheel I developed a ...
0
votes
2answers
332 views

Trying to build first fixie?

So this is the first fixie bike I would have owned. I am unsure if I want a freewheel one or not so I won't have to constantly pedal. But I was wondering or seeking help for how I could build one by ...
4
votes
2answers
2k views

Tightening rear quick release stops rear wheel

I have a medium sized Trek Mountain Track/Antelope with a seven speed freewheel. When I tighten the rear quick release, I have to carefully back off on the tightness so that the wheel will actually ...