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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1answer
57 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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2answers
90 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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1answer
63 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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14 views

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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1answer
49 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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0answers
21 views

Reynolds freehub body with indents [duplicate]

I have a Reynolds AR62 wheel on my road bike. When I took off the Shimano CS-R7000 11-28 cassette, I noticed some indents on the freehub body (see image below). The indents are only present at the ...
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1answer
50 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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1answer
34 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
335 views

Freehub disengages and then rengages — what is the issue?

I have a Hope Pro hub and shimano freehub body with 11 speed cassette on my MTB. Recently when pedalling on occasion the resistance in the pedals disappears (like the chain has come off). It seems as ...
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1answer
39 views

Converting my Raleigh Equipe to a single speed: Can I use a conversion kit?

I am a complete bike novice and am trying to convert my raleigh equipe road bike into a single speed (after a plastic bag blew out my rear derraileur). I have purchased a single speed conversion kit: ...
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4answers
1k views

Freehub pawl system vs star ratchet system

If you were to choose between a Hope Pro 4 hub and a DT Swiss 350 or 240, purely based on their freehub types, ie Hope's pawl system or DT's ratchet system, which would you choose and why? The main ...
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95 views

Bike attached to TACX flux smart trainer makes a clunking house and chain feels like skipping

I have a bike which I use as normal as well as cycling indoors with my tacx flux smart trainer (direct drive, take the back wheel off). Without the trainer, my bike runs smoothly with no issues. When ...
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1answer
48 views

Freehub movement on Reynolds hub--is this OK?

The freehub on my Reynolds wheel moves a bit horizontally when off the bike. Is there a problem with it, or is it working as designed?
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2answers
191 views

12 speed cassette touching spokes

Upgraded from 3x9 to 1x12 and encountered the problem with cassette touching spokes. Cassette is Sunrace MZ90 which is advertised as compatible with Shimano Hyperglide freehub bodies. Hub is Shimano ...
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1answer
42 views

Extending range on SRAM PG-1130 cassette / cassette specification

I'm considering buying a Kona Rove ST bike with a 1x drivetrain setup. However, one concern I have is a limited range of higher gears (40:11 ratio for the highest gear). I would like to have some more ...
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1answer
144 views

PG-1130 11 speed cassette hub compatibility

I am building a rear wheel and I have a PG-1130 Sram Cassette(11-42T). On the specifications they say: 11-42t cassette fits 10 and 11-speed non-XD™ driver bodies (1.85mm spacer is required for 11-...
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3answers
196 views

Shimano 105 freehub FH-5800 - pawls not engaging, repair or replace?

After a thorough clean and (over) oiling with WD40, my Shimano 105 FH-5800 freehub stopped engaging. Sounds like a common fail: I had previously thought that more oil = better. Live and learn! Bike ...
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1answer
96 views

Do I need to put some grease on free hub or keep it dry?

I have a dilemma with put on some grease on the freehub body or not. Because some people recommend to keep it dry?
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1answer
68 views

Is this freehub a Shimano or Campagnolo type?

I'm looking at purchasing a used Fulcrum Racing 5 wheelset to go with my Shimano 10 speed cassette. The seller is unsure if the freehub is Shimano or Campagnolo but has provided pictures. Does anyone ...
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2answers
155 views

Replacing Bontrager Race Lite Freehub

I had excessive play between my cassette cogs, taking the cassette off revealed that the splines are quite chattered up and I believe this is the source of the play. I've ordered a new freehub from ...
3
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3answers
402 views

Should I upgrade the hub, cassette or wheel so my bike will make a sound when I don't pedal?

I have a Hardtail 29' M Niner 2016, Shimano XT 10 speed, everything is perfect but I always wanted to have that sound from the hub when I go for a ride, so I want to know what I need to upgrade to ...
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0answers
128 views

How to reinstall a freehub with cartridge bearings?

My road bike's freehub has an issue - the outer part of the body has about 1mm of play against the axle, resulting in a wobbly cassette. The freehub still functions but it needs replacing. It's a ...
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1answer
548 views

How to silence a creaking cassette/freehub body

I have a DT Swiss ARC 1400 Dicut 63 rear wheel. It has a Shimano rear derailleur 11 speed LIGHT (ASL11) freehub body and I have an Ultegra 11-28 11-speed cassette. After a few weeks it started to ...
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3answers
369 views

Cannot remove freehub body

I have searched through Stack Exchange and found another question about a stuck freehub, but I am confused about which direction to turn the 12mm hex wrench to loosen the freehub. It is an 8-speed ...
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1answer
698 views

Can we fit an 11 speed cassette to new Shimano XTR 12 speed hub?

I'm looking for a very silent hub. Upon searching, I came across with Onyx hubs which definitely has no sound. I really like it, but my budget doesn't. So I've searched a little more and found Shimano'...
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0answers
578 views

SRAM XD cassette will not fit on the splines of an XDR driver

I have an 11 speed 10-42 XD cassette that I am trying to fit on an XDR driver (this one - https://www.alltricks.com/F-41493-pieces-roues/P-676097-fulcrum_body_sram_xdr). No matter how I turn the ...
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0answers
54 views

10 speed Shimano freehub to fit an Ultegra 6800 wheel

I’ve put a CS HG800 11-34 11 speed cassette on my ultegra 6800 wheel, along with the higher capacity RD8000 GS derailleur. Problem is the cassette is actually made for a 10 speed mountain free hub so ...
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0answers
31 views

Can FH9000 rear freehub be put on bicycle with 7800 Dura Ace group?

My bike is a Coppi Wing with a 7800 Dura Ace group. My cassette is a 10-speed CS 5700 for Tiagra. I have to replace my freehub. Will a Dura-Ace 9000-series freehub fit?
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1answer
160 views

Is Shimano the only company with a sealed ratchet mechanism in their freehubs?

Most freehub designs have exposed rachets when the freehub cassette body and hub are disassembled. So much care must be taken to keep the mechanism clean and free from dirt an dust. Shimano's freehub ...
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2answers
261 views

What is this Allen bolt on my novatech freehub, and what does it do?

I've been servicing the novatech freehub on my Kona cyclo-cross bike after a particularly filthy ride. When removing the freehub I noticed this tiny Allen bolt by the inner pawls of the freehub. When ...
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1answer
82 views

How to you remove the seal from a Deore XT FH-M8000 freehub?

When first installing (or overhauling) Shimano rear hubs, I usually pull the freehub, lift the seal off the back side (where the splines are that engage the hub body) and then heat the freehub with a ...
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1answer
1k views

Converting to 1x11 SRAM drivetrain with 8/9/10-speed HG Freehub

I currently have a 3x9 Shimano drivetrain, and I'd like to replace the current Shimano 9-speed rear derailleur/shifter/cassette and front derailleur/3 chainrings with the SRAM PG-1170 11-32T cassette, ...
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3answers
3k views

Why do freehub and cassette have only one position that matches?

When I'm installing cassette on my freehub, I need to make sure that the spaces align correctly. That is, there are 10 splines on the freehub and 10 corresponding splines on the cassette. My first ...
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1answer
217 views

Should a cross-threaded (but functional) freehub body be considered safe?

I cross-threaded my cassette lock-ring on a pair of Fulcrum racing 4 DBs (aluminum threads AFAIK). Upon removing the cassette it looked like the top of the threads were slightly damaged, but I was ...
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1answer
105 views

What freehub do I need?

The bearings in my freehub are starting to go and I'd like to replace the part. Sadly I have no idea of the part I need to replace it with and cannot find anything specific. My bike is a Merida 140 ...
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2answers
85 views

Replacement freehub

I am wanting to replace my existing free-hub, it came with the Giant SL1 disc centre lock wheel I bought and I assume it is a Shimano. I am running Tiagra gears and a 10 speed cassette. Can i just ...
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2answers
448 views

Swap Shimano/SRAM freehub for Campagnolo

Through my work I am able to get a set of freewheels pretty cheap (less than 100€). I know they are not super special but they are still an upgrade to my current ones. Here are the wheels: https://...
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1answer
614 views

Can I replace a Shimano RM30 8-speed freehub with an RM33 without any fiddling?

I have a Trek 4300 mountain bike with a Shimano RM30 8-speed freehub that's slipping badly. When I search for a replacement, some places seem to interchangeably suggest the RM33, but I was hoping ...
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3answers
5k views

Remove bearing cartridge on a Formula RX-142 hub

I am trying to replace the free hub side bearing cartridge on this Formula RX-142 rear hub. It came stock on my 2018 Fuji Jari 1.7 and was not available after market and I can’t get docs on it. Do I ...
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2answers
407 views

Identifying replacement freehub

I’ve been tasked to source a replacement freehub, any ideas what this type would be? Might be obvious forgive my ignorance! Forgot to mention, it’s from a Marin bike. That’s all I know so far
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1answer
469 views

Freewheel vs cassette geared hub motors serviceability

With ebike conversion kits there appears to be 2 types of rear hub motors: the ones that accept a cassette and a freewheel (see the image below from this aliexpress item) Is the freewheel option more ...
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2answers
489 views

Freehub Seal Orientation “Axis Sport Disc”

I've serviced my freehub, and on putting it back together am unsure of the correct orientation of the seal between the hub body and the freehub. I have a 2018 Specialized Diverge E5 Sport, with a ...
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1answer
802 views

135mm Hub Bodies that accept XD driver

So I'm looking around for a way to convert my three ring crank 8 speed drive train to a single cog 12 speed setup. I currently have a 135mm hub. My idea is to buy a new wheel and a compatible hub and ...
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1answer
212 views

Remove freehub on this bike

I am struggling to remove a freehub from my bike. Please help me to disassemble the hub as it is stuck. When I stop pedaling the cassette keeps turning, to the point where it pulls the chain and ...
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5answers
9k views

Could I replace a hub on a wheel?

I have a freewheel and I keep bending the axle, however the rim, spokes and tire are all fine, does anyone think it would be possible to unscrew the spokes, buy a new hub that has a freehub, install ...
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3answers
217 views

Was the freewheel ever unidirectional?

A follow up to What is this device attached to the seat-tube? Having got the rear wheel down, I see the freewheel only rotates in one direction. In the other direction I expected the freewheel to ...
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1answer
496 views

How to remove a Joytech freehub (5mm allen key version)

I've been trying to remove broken my joytech freehub (from an 11 speed felt b16) for a frustratingly long time. The model in question takes two 5mm allen keys, and is not the same as the seemingly ...
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1answer
1k views

Freehub vs freewheel in a singlespeed?

I'd like to know what is better in terms of maintenance and reliability in the long term. I currently have a flip flop hub with a freewheel which I had to replace recently. For what I saw there were ...
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2answers
237 views

Freehub body will not undo

Trying to take the freehub body off my bike. The bike is a fairly low end Raleigh Shimano Tourney set up. I got a 12mm hex, inserted it into the hex groove on the freehub side and tried to turn it ...
3
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1answer
299 views

Rear wheel replacement: freewheel -> freehub and cog size changes

I've replaced the rear wheel on my bicycle. The new wheel is different in two respects: I got a 8-speed freehub because 7-speed freewheel hubs seem to be difficult to find these days. I had a 7-speed ...