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.

Filter by
Sorted by
Tagged with
5
votes
1answer
134 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 ...
3
votes
3answers
102 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 ...
6
votes
2answers
201 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 ...
6
votes
5answers
2k 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 ...
0
votes
0answers
47 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'...
0
votes
0answers
69 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 ...
1
vote
0answers
45 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 ...
0
votes
0answers
27 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?
0
votes
1answer
59 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 ...
3
votes
1answer
228 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, ...
2
votes
3answers
2k views

What tool do I need to remove this Joytech freehub?

I have tried 10mm allen: too small, spins freely, with very little grip. Hub brand: Joytech On the outer side it has 9 ball bearings. Video showing right/drive side: ...
15
votes
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 ...
2
votes
3answers
1k 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 ...
9
votes
4answers
436 views

Servicing a Vuelta XRP Disc Hub

I can't for the life of me figure out how to get the freehub body off of this hub. Everything I can find online about the Vuelta hubs says that I should be able to stick a 5mm hex key into both sides ...
2
votes
1answer
110 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 ...
1
vote
1answer
60 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 ...
1
vote
2answers
76 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 ...
2
votes
2answers
190 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://...
1
vote
2answers
212 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
2
votes
1answer
306 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 ...
0
votes
1answer
237 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 ...
0
votes
1answer
383 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 ...
1
vote
1answer
212 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 ...
4
votes
1answer
321 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 ...
3
votes
1answer
138 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 ...
-1
votes
3answers
179 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 ...
3
votes
1answer
810 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 ...
2
votes
2answers
117 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
votes
1answer
87 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 ...
5
votes
2answers
152 views

What model/make are this Freewheel and Freehub?

I am in the process of overhauling my old Motobécane racing bike and I'd like to replace the freewheel, if reasonable. However, there is no indication of who made it (the bike shop couldn't help) and ...
1
vote
4answers
118 views

Swap 7-speed for 9-speed

I have a Giant Defy 9-speed road bike, and a thief stole the front wheel. I found a good deal on a set of used Bontrager (Edit: Mavic Aksium) wheels, so I bought them as a set. I want to swap both ...
4
votes
3answers
217 views

Old Shimano Altus Hub disassembly. Clockwise or counter clockwise?

I hope to squeeze a bit more life out of this old Shimano Altus hub and apart from having to build my own tool: Do I have to turn the inner part with the two notches clockwise or counter-clockwise? ...
1
vote
0answers
85 views

Schwinn sidewinder 21 gear slipping?

If rear tire is off the ground, the wheel will spin when pedaled. When wheel is on the ground the pedals will move the chain in any gear but will not move the rear wheel. The chain is not losing ...
4
votes
2answers
835 views

What is causing an intermittent side to side wobble of the rear cogs?

I am struggling to diagnose the cause of an intermittent side to side wobble of the cogs on a rear wheel. Here's what I know: Periodically (maybe every 10-15 minutes) during a ride, I experience ...
7
votes
3answers
1k views

(Apparent) chain slippage causes on new bike - usual culprits already eliminated

I recently purchased a new bike (~7 weeks ago). Since day one, it has had an issue with chain slippage. I initially took it back to the bike shop from which I bought it, to be told that it was likely ...
1
vote
1answer
504 views

9 Speed Cassette does not go all the way in on the free-hub body

Wheel: Shimano WH-R500 Cassette: Shimano CS-HG400-9 9 Speed I can put the cassette on the free-hub body but the chain will stuck on the highest gear. The cassette seems to not go all the way in on ...
6
votes
2answers
2k views

Flashpoint FP80 / SRAM S80 - rear hub specifications?

I'm looking for the specs of a SRAM S80 rear wheel hub. I dearly wish to replace its 9/10-speed freehub body with one that can accomodate Shimano 11-cog casettes. SRAM S80 was a 80mm-profile aero ...
7
votes
2answers
4k views

Why am I getting no power when I pedal?

Yesterday when I was biking my mountain bike on level paved path, I would pedal but get no power to the wheel. To use a car analogy, it was as if I had the clutch in and was apply gas. It seemed to ...
16
votes
4answers
10k views

What freewheel mechanism designs are used in bicycles?

What are the various freehub mechanism designs that have been designed and or put into production? (doesn't need to have been made necessarily!) A good post will contain: A description of the design,...
0
votes
1answer
41 views

Replacement Freehub cassette

I'm planning on changing my cassette to 11-32. Im running a Shimano 12-28 8 speed at the moment. I have no markings on my old cassette and I'm a little confused at all the letters and numbers they ...
1
vote
2answers
345 views

Specialized tri-spoke rear wheel free hub replacement?

I'm looking to replace the free hub on my Specialized tri-spoke rear wheel. Can't seem to find a model number,and would love to put an 11-speed free hub. Hope for some help?
0
votes
1answer
456 views

9 of 10 on 7 speed freehub

I recently acquired a set of wheels that have a 7 speed freehub. the freehub is not long enough to accommodate an 8/9/10 speed cassette. After reading Sheldon Browns post on 9 of 10 on 7 .. Any 7-...
0
votes
2answers
2k views

8spd to 11spd upgrade [duplicate]

So I am upgrading my Trek 1.1 (2016) from 8speed Shimano Claris to an assortment of Shimano Ultegra 6800, 105 5800. I just bought a 11speed cassette to complete the major parts (it hasn't shipped yet)....
1
vote
0answers
292 views

Freehub stuck on wheel

The freehub doesn't quite roll as smoothly as before. Pedalling back actually turns the wheel back if it's free spinning. So we thought we'd take the body off to clean it and see if anythings broken ...
1
vote
2answers
785 views

Shimano FH-6800 rebuild or replace?

I just bought a used 2016 Specialized Diverge Pro. The guy that sold it to me told me that he'd recommend replacing the bearings in the rear hub. I believe the free hub is an FH-6800 (Ultegra). Any ...
0
votes
1answer
565 views

Campagnolo Zonda Ratchet sound

I bought a Campagnolo Zonda C17 recently and noticed how quiet the ratcheting noise was. My friend owns a pair of Zondas but his one is really loud. why is mine silent? i use a 15 cassette.
3
votes
2answers
674 views

Freehub body wiggles

This is a OEM wheel from a 2014 Salsa El Mariachi Single Speed, called a "Salsa 2, Singlespeed" hub, which I believe is made by Formula. The freehub body "wiggles" (the thing that my fingers are ...
2
votes
1answer
1k views

Is there a difference of spacing between cogs on a 7 speed cassette vs a 8 speed cassette?

Is there a difference of spacing between cogs on a 7 speed cassette vs a 8 speed cassette? When I got a new wheel (upgrade from freewheel hub), I tried to get a 7 speed cassette (SRAM) for it, but ...
0
votes
1answer
313 views

shimano CS-5600 compatible rear hub and freehub body

What rear hubs and/or freehub bodies are compatible with a Shimano 105 5600 10-speed 12-25T cassette?
0
votes
1answer
405 views

Shimano RS505 freehub body replacement

I need to replace the freehub body on a RS505 hub but I can't find the FH-RS505 hub for sale anywhere. I've checked the Shimano compatibility section for this hub. It looks as though all the ...