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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.

0
votes
1answer
29 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
0answers
33 views

Replacement freehub for Boardman CX Comp

I need a replacement freehub for the Boardman CX comp, but I don't know which one to buy, Which one will fit ? This is the bike: https://www.boardmanbikes.com/gb_en/products/840-cx-comp.html Would ...
1
vote
1answer
46 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 ...
0
votes
1answer
73 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 ...
3
votes
1answer
55 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 ...
6
votes
5answers
460 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 ...
-1
votes
3answers
158 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 ...
4
votes
1answer
149 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 ...
0
votes
0answers
67 views

Coaster brake on my 3 wheeler

I installed a coaster hub on my 3 wheeler when I pedaled backwards it only stopped the bike From going backwards but it still continued to roll forward. What happened?
3
votes
1answer
282 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
72 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 ...
0
votes
0answers
88 views

Brand new wheel creaky freehub body

I recently bought a Kona Rove ST (2017) gravel bike used for commute, it has no more than 100 km, so it's relatively "brand new". There is a set of Alex Wheel Boondocks on it with Alex's aluminium ...
3
votes
1answer
36 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 ...
2
votes
1answer
320 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: ...
5
votes
2answers
140 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
76 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 ...
5
votes
3answers
110 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
61 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 ...
7
votes
3answers
427 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
292 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 ...
0
votes
0answers
148 views

Boardman CX Comp - Remove freehub

Does anyone know how to remove the freehub from a Boardman CX Comp ? I have never removed one I just assumed I could use a Hex Key, the largest I had was about 10mm the hole looked like it could take ...
0
votes
1answer
33 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
217 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
126 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
585 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
181 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
532 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 ...
4
votes
2answers
409 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 ...
3
votes
1answer
959 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
195 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
275 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 ...
7
votes
2answers
604 views

Freehub: why are the pawls on the inside surface not the outside?

This might have an obvious answer but when I look at freehub designs, I always see the pawls on the inner member and ratchets on the outer member. Here is an example: Has anyone ever reversed that ...
0
votes
1answer
385 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.
15
votes
4answers
6k 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,...
8
votes
3answers
259 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 ...
1
vote
1answer
570 views

What 11-32 10 speed cassettes will work with Shimano 105 5700 freehub?

I have a Shimano 105 5700 10 speed hub, currently with a 12-27 cassette. I want to go to an 11-32 cassette. There is no 5700 10 speed cassette that goes beyond the 12-27. There is an Ultegra 11-32 (...
1
vote
1answer
262 views

Upgrading Joytech hub from 8 speed to 10 speed

I have a Joytech hub and I'm planning to upgrade from 8 to 10 speed. With my Joytech rear hub, do I need to change my hub first and does my hub support 10 cogs?
1
vote
1answer
2k views

Shimano 8/9/10 speed freehub conversion to 11 speed does not appear possible due to changed spline pattern

After remaining unchanged (with a few exceptions like FH-7801) for nearly 20 years the Shimano freehub body spline mount has changed along with the width. I had hoped I could refit a 8/9/10 speed ...
3
votes
2answers
190 views

How do I remove this Ksyrium hub body?

I want to get into this hub to lubricate the bushing. Every instruction I see on the Internet says to use a 5 mm Allen and a 17 mm wrench. But there is nothing to put a 17 mm wrench on. There is the ...
1
vote
1answer
2k views

Can I swap freehub bodies?

Background I have an 8 speed 26" freehub/cassette based wheel on my MTB. It runs a 7 speed MTB cassette with a spacer and 7 speed shifter. It works fine. I also own a 20" folding bike that has a 6 ...
2
votes
2answers
1k views

Cassette jerks chain forward intermittently

I have a 3 year old road bike with Shimano Ultegra 11 speed freehub CX-75 and cassette CS-6800. Recently I started hearing clunking noise from the drivetrain during freewheeling. It appears that the ...
3
votes
1answer
197 views

How to disassemble free hub shell?

I need to replace the free hub shell that is on my wheel with one that will work with an 11-speed Dura-Ace cassette. The current one is for Campagnolo. I don't want to take the whole wheel apart, I ...
2
votes
2answers
410 views

How can a Mavic freehub stop working after cleaning?

I have a Mavic Aksium Race rear wheel. The freehub was working and felt gunky. I opened it to clean it (it was dry with some gunk and a bit of rust stains) and reassembled after lubricating with ...
3
votes
1answer
296 views

upgrade from MF-TZ21 to 7 Speed cassette freehub

I'm trying to save costs so I want to upgrade to 7 speed 11-28 Cassette to keep the same shifters, dealer says I need a new Freehub, new 7 Speed Cassette, new chain AND NEW DISC BRAKES, why do I need ...
2
votes
2answers
1k views

Oil/lube for Shimano freehubs

After an extremely muddy and wet MTB race (riding in puddles covering the brake rotors) I need to do a full bike overhaul. The only thing I don't know is what lube to use after degreasing the ...
2
votes
2answers
631 views

I cleaned my cassette and changed my chain, now my freehub is slipping. What are the possible causes? [duplicate]

I removed my cassette, cleaned it and put a new chain on my mountain bike. All seemed to go well and went back together nicely. However when I took it out for a ride the free hub seems to be slipping ...
2
votes
1answer
530 views

What caused play in my freehub?

I was getting my road bike out earlier and heard a clunking sound when I dropped the back wheel. I repacked the bearings in it ~200 miles ago, and the wobble felt like bearing play. However when I ...
3
votes
1answer
103 views

Rear wheel not spinning when the skewer is locked in

Can someone please tell me what is causing my rear wheel to "stiff up" when pedaling. I recently cleaned the rear hub because at first it was causing the wheel to "stiff up" when pedaling. At first I ...
4
votes
2answers
408 views

Replacing roller-clutch freehub with ratchet type

I live in Finland, and as such the weather right now is pretty cold. Since I rely on my bike for shopping in a rural area, the frequent and complete loss of drive I now suffer at below-freezing ...
2
votes
1answer
83 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 it ...