Questions tagged [freehub]

The part of the rear hub which holds the casette. It employs a ratchet and turns only when you pedal. Track bicycles / fixies don't have one.

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2 answers
490 views

Does a z-shaped cone wrench exist?

This is a massive cone, and I was under the mistaken belief that if it remains perfectly smooth, I can either overhaul it yearly, or grind it with a Dremel and repack the grease every two years, and ...
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2 votes
2 answers
63 views

Shimano FH-M756 freehub body compatibility - can I upgrade?

I've got a Deore XT rear hub (FH-M756-A) on my tourer, and twice the freehub has let me down. The first time it was full of mud mixed with grease but I managed to get it working just enough to ride ...
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5 votes
1 answer
152 views

What kind of Freehub body is this?

What kind of Freehub body is this? It looks like an old Uniglide but the threads go all the way down, and it's very short (as I hope you can tell with the ruler). It's on an unbranded hub attached to ...
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  • 173
2 votes
1 answer
169 views

Tune freehub pawls damaged?

Sorry to bother you again with another weird question. On my gravelbike with Campagnolo Ekar and tune Prince CL rear hub (3 teeth, N3W freehub body), I removed the rear wheel for a routine task and ...
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  • 929
2 votes
1 answer
165 views

Freehub is making loud noises and is randomly engaging/binding

My freewheel recently started making some faint weird noises. I didn't pay much attention because everything was working fine. But as time went on, it started getting worse and worse. The noise was ...
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2 votes
1 answer
260 views

Can I put a different manufacturer’s freehub body on my hub?

Can I replace my Mavic Cross One freehub body with a non-Mavic one? I want to switch to Shimano microspline.
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  • 29
2 votes
1 answer
50 views

Campy N3W freehub body

I have a pretty good idea that Campagnolo's new freehub body standard they term "N3W" is only compatible with Campy cassettes 10-13 speed. It can also fit 9, 10 & 11 tooth small cogs. ...
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1 vote
2 answers
325 views

Serivce Manual for Specialized full sealed bearing thru axle hub

I have a Specialized Tarmac SL6 which comes with "Specialized full sealed bearing thru axle hub". I tried searching for the hub specifically but cannot find any number or series on the back ...
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2 votes
2 answers
88 views

installing 1x11 gearset on a 1986 Bianchi Strada

I have a 1986/7 Bianchi Strada it is a 2x5 gearset, a SuginoVP 110 crankset and shimano derailers. I want to convert it to be more like a gravel bike so change it to 1x11 or 1x9 gearset with 11-36 ...
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  • 21
4 votes
1 answer
80 views

How to fix play in 70's freehub

I have a 70s racing bike equiped with Dura Ace. The cassette was quite wobbly so I dissembled and re-assembled it using new ball bearings & grease.There is still some play left, but to my feeling ...
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  • 143
3 votes
2 answers
313 views

Is this the sound of a free hub gone bad?

Could you please identify if this is the sound of a free hub gone bad? If it is, can I get it sorted out at a bike shop or should it be replaced?
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3 answers
555 views

How do I remove the rear sprocket from a Gates Belt drive system

first question at this site. Hoping to get advice. Like many others, I am trying to learn how to service my bike, but when you get stuck.... I used a strap wrench and a cassette tool and I ...
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3 votes
4 answers
671 views

Copper grease on freehub when mounting sprocket?

Do you put copper grease (or something else) on a freehub directly before sliding the rear sprocket on? I put a light coating on by habit when fitting just because I don't like the idea of bare metal-...
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  • 223
4 votes
3 answers
136 views

New freehub body causing chain slack and ghost pedaling

I have replaced my freehub body like-for-like. Now when I freewheel, the top part of the chain goes slack and the pedals spin when I take my feet off them. This usually occurs on old gunked-up ...
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  • 143
0 votes
1 answer
60 views

Noisey clunk in freehub, how to R&R the Hub

I have a Schwinn Pathway 18speed bike. I put about 60 miles a week on it, over the past 1.5 years. Recently I noticed a clunk in the rear wheel. All gears and only while pedaling. I cleaned it up and ...
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0 votes
1 answer
118 views

Cannot remove campagnolo zonda freehub

I have tried following tutorial videos to service my Zonda rear wheel bearings - I want to cleanup the grim and regrease the bearings - such as They all show that ...
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3 votes
4 answers
180 views

Shave 1.85mm off to get an 11s road cassette onto a 10s hub

Does anyone have experience removing material to get an 11s road cassette onto a 10s hub? As per the hub standards, the difference between the width of a 10s and 11s freehub body is 1.85mm. The back ...
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3 votes
1 answer
709 views

Swapping Ultegra cassette 11-34 for 11-28: spacers?

Swapped the original 11-34 HG800 cassette for the 11-28 R8000 on a Giant SR1 wheel. When taking off the 11-34 I noticed there was an initial spacer mounted on the freehub body. I took it all off then ...
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1 vote
2 answers
125 views

Identify hub / freehub body on Giant FCR 2 2008

The rear wheel bearings on my 2008 Giant FCR2 need replacing, and the freehub body is feeling a bit notchy, so while it's all in bits I'd like to be able to have the option of replacing. I understand ...
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0 votes
1 answer
72 views

Help determining how many cogs an unlabeled freehub wheel can take

Im replacing my freewheel rear wheel with a freehub one. The wheel that i've found doesn't say anything about how many cogs it can take. It just says that its '26 inches. I want to install a 9 speed ...
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1 vote
1 answer
238 views

Will a shimano acera rear derailleur work with a shimano altus cassete?

Got sick of breaking rear axles. Im going to convert to a freehub. Currently i have a shimano acera 9 speed rear derailleur. I found a shimano altus cassete which has a huge 36 tooth sprocket which is ...
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5 votes
2 answers
751 views

What is correct procedure to remove freehub body?

I want to replace a defective freehub body and I am confused on how I should unscrew it from the hub. This earlier question (Cannot remove freehub body) explains which direction to go between CW and ...
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2 votes
2 answers
114 views

Drive chain swap clarifications

Been thinking about upgrading my drive train, however, I'm not sure if I've fully understood the compatibility part and wanted to get some more clarifications. Currently have an Advent X (10spd) and ...
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1 vote
1 answer
116 views

How do I get this cone nut off?

I’m attempting to remove a freehub and have removed the locknut and washer on the non-drive side. However, the cone/cone nut doesn’t seem to want to come off. Is this nut supposed to unscrew from the ...
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1 vote
1 answer
86 views

Mavic crossmax freehub doing strange noise at high speed coasting

MY MTB is fitted with Mavic Crossmax 26" wheels (early 200x model). The freehub sometimes makes a strange noise when coasting at high speed that stops if I pedal forward once. In the past, ...
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  • 153
15 votes
7 answers
2k views

Is there a roadside workaround for a freehub that won't engage reliably?

I had a lucky escape from a long walk on Saturday: 50km from home or 20km via a train, my freehub suddenly wouldn't engage - the pedals span as freely forwards as backwards. I tried dropping the back ...
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  • 45k
2 votes
2 answers
565 views

Correct tool to remove Uniglide freehub?

I have a coworker's rear wheel to repair. The freehub pawls ceased engaging, resulting in free-spin in both directions. A replacement freehub body is ludicrously expensive, so I want to remove the ...
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0 votes
1 answer
65 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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5 votes
1 answer
300 views

Freehub comes free from wheel with cassette attached

I was cleaning my bike and a gust of wind knocked my wheel over which had been standing up against a wall. I found the cassette/freehub detached from the wheel. The end caps don't appear to have a ...
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1 vote
1 answer
525 views

How to tell which freehub body is a compatible replacement for the one on an old Shimano FH-HG50 rear hub?

I'm working on trying to fix an old Shimano FH-HG50 7-speed rear hub, which skips often and sometimes spins forward without turning the wheel. My questions are: What to look for when buying a ...
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6 votes
2 answers
630 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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7 votes
2 answers
215 views

Why does my freehub body have such shallow lockring threads?

My new freehub body (right) has much shallower threads than my old one (left). The threads are so shallow that I cannot properly install the cassette lockring. They are both for Campagnolo 9/10/11 ...
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  • 737
4 votes
2 answers
183 views

Can I saw off broken freehub

I have a very old bike (circa 1996) with broken Shimano Altus 7 speed, hyperglide-c freehub. The freehub is freely rotating in both directions. I had removed the cassette, but it seems that there is ...
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  • 143
7 votes
2 answers
15k views

What's the difference between Shimano HG and SRAM XD free hubs?

I know that the Shimano free hub is pretty common. I think it's called HyperGlide (HG). But now I heard that SRAM has a free hub called XD. What is this? What is the difference? When do I need it? Can ...
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  • 335
2 votes
2 answers
143 views

mtb hubs why is his hubs louder but on paper they are the same

My mate and I purchased bikes. I got a Norco HT 2 and he has a Norco FS 3. On paper we have the same hubs but mine is silent, and his is decently loud when coasting. Why is that?
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2 votes
1 answer
107 views

Freehub has some play

I just got a new Zip 303s Wheelset and the freehub has some play that you can see on this video. I am not sure whether this is normal or not. Could you help me here?
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1 vote
0 answers
51 views

Chinese Hub identification help?

I bought some carbon cyclocross wheels in 2014 on ebay from seller diybike. (listing long gone). After 13,000km the freehub body has seen better days. Trying to source a replacement without swapping ...
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  • 1,303
2 votes
0 answers
46 views

Freehub with sealed/cartridge bearings

I decided to buy a new freehub and replace it myself, as the one I had broke down (started spinning to both sides). However, I didn't realize the new freehub has sealed/cartridge bearings as opposed ...
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1 vote
0 answers
91 views

Probs removing the Freehub from Mavic Ksyrium Pro UST

Finally managed to remove end caps after reading helpful tips on this site... now cannot get the freehub off. Researched the manual... there do not appear to be any further retention devices, but its ...
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3 votes
2 answers
1k 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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  • 31
2 votes
2 answers
2k views

Freehub silent after service

I have just picked up my bike from a full service - all parts were taken apart, cleaned, lubed etc. My ride home was really nice and quiet, and then I realised: my freehub is now completely silent. I ...
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  • 23
0 votes
1 answer
84 views

Rear wheel is loose and wobbles at even the tightest setting

I recently had my rear wheel and hub replaced because the older one was bent. When I came back home I found that the guy who fixed it left it loose, so much so that I could pick up the wheel and shake ...
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3 votes
1 answer
164 views

Smallest sprocket doesn't fit on freehub?

I bought a second hand bike with a Campagnolo Super Record 11 groupset (the pre-2015 version). I have been experiencing shifting difficulty since I bought it, and took it to a mechanic. The mechanic ...
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0 votes
1 answer
35 views

How do I tighten this 10s Shimano splined freehub? 2008 Cannondale CAAD9 R5 - WH-R550

The rear wheel on my Cannondale has been having freehub play for some time now. I've tried using an hex key to tighten the freehub, but to no avail. The wheel is a WH-R550 rear wheel. The 11mm hex key ...
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6 votes
2 answers
503 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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3 votes
1 answer
310 views

Which Shimano freehub body fits Campagnolo Calima?

I have a Campagnolo Calima C17 wheel set with currently a Campagnolo freehub body (FH-BU015) on it. Does anyone know which type of Shimano freehub body fits on this wheel hub? I searched but I cant ...
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  • 31
4 votes
2 answers
941 views

Can you identify this freehub from a 2014 Boardman CX Comp?

I need to replace this freehub from my 2014 Boardman CX Comp as it's becoming incredibly sticky. There's not a lot to identify it. It's stamped 'M M P' on the side. Trial and error has found an 11mm ...
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  • 261
1 vote
1 answer
972 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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1 vote
1 answer
86 views

Novatec QR D812SB max speed?

Can anybody tell the specification of Novatec QR D812SB? I'm looking to buy used wheelset using these hub. Can I use Shimano 11 Speed using this? I am looking at this https://issuu.com/novatecwheels/...
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  • 53
3 votes
1 answer
129 views

Fulcrum Racing 5 LG freehub replacement - drag

I just replaced a Fulcrum racing 5 LG free hub. Once it was all together, it seems a bit tight. With the bike on the stand, when I spin the pedals, and release, the pedals continue to rotate. So the ...
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