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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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1 answer
31 views

Which freehub do I need to work with the CS-R8000?

I have a 2005 Specialized Transition Elite that I am converting to a standard road bike by replacing the handlebars/shifters and replacing the entire drivetrain with the R8000 Ultegra group set. The ...
0 votes
1 answer
37 views

Shimano 105 thru-axle freehub FH-R7070: freewheel body servicability and separately orderable?

I'm searching for a replacement freewheel body for my bike. The only marking on my freewheel body is 18-d-3 11S Internet search did not yield useful results for this string. Searching for Shimano ...
1 vote
3 answers
356 views

Freehub not very free after tightening cassette lockring

I've just replaced the cassette on my hybrid commuter (replaced the chain a week ago and found that it skipped on my most-used sprockets). As this bike is no longer my main bike, and it takes 8 speed ...
3 votes
2 answers
1k 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 ...
1 vote
1 answer
66 views

What is the right combination of spacers for a 10 speed cassette on a Mavic HG freehub?

In general, for 11-speed HG hubs one uses a 1.85 mm spacers for 8-10 speed cassettes and some 10-speed road cassettes use one extra 1 mm spacer always. However, I am confused about Mavic hubs. ...
11 votes
3 answers
41k 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 ...
2 votes
1 answer
82 views

Can you ID this Shimano freehub body?

My LBS can't figure it out and my googling brought up nothing. The hub itself is Shimano model FH-T3000 It's from a 3yr old, 8spd, $100 wheel.
0 votes
0 answers
58 views

How to replace a band (hub, drum) brake with a freewheel

I am looking to convert my bicycle into a semi-electric bike by adding a freewheel. The 2 freewheels will allow me to use either pedals or an electric motor to move the bike. However, I don't have ...
2 votes
2 answers
126 views

Do Shimano RS100 wheels have two ratchets inside the freehub?

Can anybody confirm Shimano RS100 wheel rear hubs have two ratchets inside the freehubs? It looks like there are sockets for 3 ratchets but there are only 2 ratchets. Since we bought the bike second ...
4 votes
1 answer
203 views

How to degrease a ratchet area that is next to (sealed) bearings?

I'd like to re-apply grease in the ratchet mechanism of a Mavic freehub (the design is similar to DT Swiss and possibly other brands). The mechanism is very simple to unmount, most of the parts that ...
4 votes
2 answers
2k views

Upgrading ratchet 18-> 36 or 54 teeth on the DT Swiss 350 hub

I have a stock DT Swiss 350 and I don't like the huge hub engagement delay. With considering upgrading it to 36 either 54 teeth to reducing it, I am concerned if 54 teeth will be reliable enough for ...
1 vote
1 answer
228 views

Conversion of SRAM MTH 746 from Shimano to SRAM XD Freehub

I own Santa Cruz Tallboy AL R-kit which comes with SRAM PG1230, 12spd, 11-50t Cassette (NX level). I want to upgrade to GX-level drivetrain. The GX goupset comes with XG-1275 Eagle cassette with 10-52 ...
3 votes
5 answers
18k 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: ...
2 votes
1 answer
479 views

Shimano freehub body replacement compatibility

I have a cheapish (okay - cheap) Shimano FH-M525-A MTB rear hub (QR, 10-speed). The freehub body has a fair bit of play so I want to replace it. There are any number of supposedly-identical ...
1 vote
2 answers
867 views

Shimano cassette/freehub compatibility

Can I use the following components together - Shimano's compatibility chart is not clear to me. Cassette: CS-HG200-9 (11-32T/11-34T) Freehub: FH-T610 I have an old bike with a Tourney groupset. The ...
4 votes
2 answers
2k 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 ...
7 votes
2 answers
126 views

Freehub removal

I need to remove this freehub (see picture), to replace a broken spoke, however, it is an old bike and I am unsure how to proceed? I've managed to removed the cassette using a chain whip and a 32mm ...
2 votes
1 answer
93 views

Unable to backpedal - jockey wheels on Campagnolo derailleur

I have Campagnolo Athena rear derailleur on my road bike. Never gave me a hint of trouble. Always kept clean and lubed. Never ridden in the rain or in dirty conditions. Yesterday I was not able to ...
4 votes
1 answer
831 views

Why do some 10-speed cassettes not need a spacer for an 11-speed road hub?

I have this wheelset which claims to be an 11-speed HG freehub. I've been experimenting with installing 3 cassettes and I'm finding some strange behavior: Cassette Description Needs 1.85mm spacer? ...
4 votes
4 answers
3k 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 ...
0 votes
1 answer
56 views

Halo freehub body 10 teeth need part number or correct description

Hi all you've been all helpful so far, I need to order one of these, please see attached pic: It is a hub part from HALO COMBAT wheel 10 teeth, I cannot find correct part number or description, I need ...
-4 votes
1 answer
545 views

Which Shimano Freehubs can I use on the WH-R550 wheel?

Looking to replace the freehub on a Shimano WH-R550. The Shimano parts line-up is a total mess. No LBS has been able to give any accurate info. Basically question is, which freehubs can I use on the ...
4 votes
1 answer
165 views

Change freehub body from road to MTB on DT Swiss hub, possible?

Generally, it is possible to change the freehub body to different standards on DT Swiss hubs. However, their website only shows examples of swapping between various road-specific standards, or various ...
4 votes
2 answers
964 views

What kinds of rear wheel hubs are compatible with my MTB?

I am looking at a rear wheel replacement. I have a Scott Scale 980 with a standard wheel on the rear. Will I need a longer freehub to interface with the wide 12 speed cassette? Or are there general ...
0 votes
1 answer
222 views

I am looking for a replacement freehub body for my Shimano fh-rm65. I can only find bodies for a fh-rm33. Can anyone reccomend a replacement?

I am replacing my freehub; I can only find bodies for a fh-rm33. Can anyone recommend a replacement? It is for a 10 spd. Thank you!
0 votes
2 answers
687 views

What is the quantity and size of the ball bearings in Shimano M785 freehub?

I have got a disassembled rear hub Shimano M785. I cleaned it and started to assemble back. On this step I can see the lack of ball bearings. It seems that there will be 35-36 balls on each line. I ...
3 votes
2 answers
169 views

Can a Mavic Freewheel Body (HG11 B9) fit into a 28"Mavic Ksyrium Elite Wheel (that already has a Shimano freehub)?

I have a Campagnolo Chorus groupset and wanted to switch my rear wheel to a newer one. I found a Mavic Ksyrium Elite rear wheel (older series) that had a Shimano freehub in it. I have a Mavic ...
6 votes
4 answers
24k 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 ...
2 votes
1 answer
144 views

Weird behaviour of rear hub thru axle

recently my rear wheel started wobbling so I wanted to check its rear hub, bearing and axle. I have a Shimano HB-RS470 hub which is a thru axle hub, and it look exactlly like the one in the picture ...
1 vote
1 answer
174 views

Rear wheel spinning causes pedals to jolt forward when not pedalling

I've recently replaced my cassette and chain on my bike and I've found that now when the rear wheel is spinning freely (no pedalling) it will often cause the chain to suddenly jolt forward. I'm not ...
3 votes
1 answer
2k views

How do I get off my totally stuck freehub body?

My freehub body is totally stuck The only way to turn it at the moment is with a whip chain and a cassette on. I cleaned it with WD40, but that didn't help at all. Also I tried to "hammer" ...
0 votes
1 answer
196 views

Can a FH-9000 rear freehub be put on a bicycle with a 7800 Dura-Ace group?

My bike is a Coppi Wing with a 7800 Dura-Ace group. My cassette is a 10-speed Tiagra CS-5700. I have to replace my freehub. Will a Dura-Ace 9000 series freehub fit?
8 votes
2 answers
3k views

Number and size of freehub ball bearings for Shimano FH-HG50 (30H 9801)

I need help with an overhaul of the Shimano freehub that comes with the FH-HG50 hub (part no 30H 9801). How many balls go into the inner and the outer race? What size should they have? I have already ...
9 votes
3 answers
2k views

How to achieve a 200 Nm tightening torque when installing a freewheel body?

I always try to respect the manufacturer's recommended tightening torque when installing a bike component. Lately, I stumbled on a Shimano freewheel body that needs a tightening torque between 147 and ...
18 votes
4 answers
17k 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,...
1 vote
1 answer
108 views

Updating drivetrain: Powertap to Force AXS - Powertap hub Compatibility?

I have a Zipp 808 20H wheel with a Powertap hub running a 10-speed cassette. I’m looking to get SRAM Force AXS, can I put a XD or XDR free hub on and run the 12 speed cassette? Or must I get a ...
0 votes
1 answer
214 views

Replacing Giant Defy 4 2013 Freehub

Hi what is the correct freehub replacement part for Giant Defy 4 2013? The bike is all original, 8s pg-850 cassette thank you,
0 votes
2 answers
268 views

Where does the hub end, and the freehub begins?

When shopping for a Shimano SLX M7100 Groupset, 1x12 one reads ⚠ For use with Shimano MICROSPLINE freehub bodies Cassette NOT compatible with standard HG (8,9,10 or 11 speed), XDR or XD freehubs I'm ...
4 votes
2 answers
327 views

Converting Oval 928 rear hub to XDR

I am building a bike with a SRAM Force eTap AXS drive train. I would like to change the freehub to XDR on an OVAL rear wheel. Does anyone know if there are any XDR freehubs that would be compatible. ...
2 votes
1 answer
126 views

Can I use by rear wheel with a missing Freehub body washer, and what is its purpose?

I noticed that my rear wheel had some left to right play on the axle but tightening up the axle prevented the freehub spinning. After removing the freehub I discovered that the freehub body washer was ...
1 vote
2 answers
598 views

Shimano freehub compatibility

I have the following rear bike wheel: WTB STX i23 TCS tubeless 29” rims, 32H, alloy disc hubs, 14G black electroplated spokes Today it seems that the freehub broke down and it makes a bad sound. How ...
1 vote
0 answers
104 views

Freehub threading

I have a set of dmd wheels the 8 speed freehub has sheared off, got the piece out and ordered a new Shimano profile M22 thread freehub, when came to fit, the thread is 22.5 mm around same but coarser ...
4 votes
3 answers
4k 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.
4 votes
3 answers
5k 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 ...
5 votes
2 answers
851 views

Cassette with more gears on same wheel?

I would like to retrofit an 11-gear cassette onto my bike which currently has a 9-gear cassette. Both cassettes are Shimano, and both are relatively modern. I know I will need a new rear shifter, and ...
5 votes
2 answers
558 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 ...
2 votes
2 answers
1k 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 ...
4 votes
2 answers
1k 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 ...
5 votes
1 answer
245 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 ...
2 votes
1 answer
453 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 ...