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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873 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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1answer
259 views

What tool do I need to disassemble this 5 speed freewheel

I have a 5 speed freewheel that I need to take of from hub, but the standard freewheel tool that I do have does not fit. On the freewheel following text is engraved: UC SHIMANO SIS MF Z015 China It ...
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2answers
189 views

What could be the reason for chain skipping

My chain is skipping only on the smallest sprocket, and it skips with every crank turn. The chain is not stretched. Also, chainrings are almost new. Could this freewheel be the reason, it doesn't seem ...
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2answers
493 views

Will an ACS 13T X 3/32 Crossfire freewheel fit an All-City Standard 130mm Hub?

Will an ACS 13T X 3/32 Crossfire freewheel fit an All-City Standard 130mm fixed/free Hub? I am attempting to setup a goldsprints setup using a very large front ring and a small rear freewheel. I'm ...
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1answer
87 views

sun ez3 trike gearing

I have sun ez3 trike,it has rear freewheel with the largest being 28 teeth,can I put a mega range with 34 teeth on it,and do I have to change the deraileur.Objective to make hills easier.
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4answers
625 views

Disk brakes severely reduced in power after replacing bearings

so I am creating a few posts about bearings and wheels, (story so far): how to reassemble mountain bike rear wheel hub and bearings mountain bike freewheel hub stopped rotating I have now got the ...
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2answers
1k views

mountain bike freewheel hub stopped rotating

So I was trying to replace my rear bearings and got stuck, (see question below): how to reassemble mountain bike rear wheel hub and bearings After this I felt confident to go ahead. Was putting it ...
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2answers
141 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 ...
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1answer
120 views

Removing Old Freehub Body

I saw this. However, looking at a old 7 speed freehub body, it looks like it takes a special spline wrench (TL-FH10). It looks very similar to the fixing bolt here. Or do I need some other wrench ...
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14k 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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2answers
100 views

what is the difference between a freewheel and a hub

I think these are both just types of casssetes, one all the rings come apart, and the other its just one big piece all welded together. Can someone please tell me what the difference is.
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1answer
97 views

Can an IGH have the same maximum overdrive-ratio as a crank-sproket setup?

Is there an IGH that gives one the maximum overdrive-ratio that one might get with a 39-53T crankset and a 11-34T freewheel? If not, what is the mechanical roadblock in making one ?
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89 views

How to alter a sports cycle to avoid wheel bend

I have a Hero Hawk Nu-Age, which I bought it two years back. In India, this cycle was mostly used for sports. As this cycle has very thin wheels 27 * 1-1/4, I could not ride this on bumpy roads for ...
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2answers
2k views

Can I use an “8 speed compatible” crank such as Shimano FC-2303 with a 7 speed Shimano MF-HG37 freewheel?

I have a 2004 Giant Cypress I use for commuting, and the entire drivetrain is very worn out (shark teeth and chipped teeth, front and back). I need to replace the Shimano MF-TZ20 7-speed (14-34t) ...
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1answer
133 views

Shimano rear hub body compatibility

My free hub body has cracked and im looking to replace it. I have discovered it uses a 14mm hex key to remove. I cannot find a freehub body for sale that matches m785. Will a "m760-m765" body fit my ...
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2answers
94 views

Freewheels frequency in 2012?

I would like to know for some future works on my bike whether I have a freewheel or a cassette? I will look at the bike in itself, but just for a little heads-up: my bike is a 2012 FX 7.2 (Trek). In ...
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1answer
91 views

Friction occurs in BMX Freewheel

I've just found out where friction occurs in my BMX. When I take chain off the Outer Part and spin the rear wheel the wheel will spin for several minutes but when the Outer Part can't rotate with the ...