16. How to Replace a Freehub Body
Demonstrates how to remove and install a cassette freehub body. Requires a hub overhaul.
If your cassette cluster is loose or gets stiff you may need to replace your freehub body. To do this you’ll need a 10mm allen key, and you’ll have to first remove your cassette, axle and bearings as demonstrated in previous tutorials.
Once your cassette and bearings are removed, slide the 10mm allen key into the center of the hub, and loosen it by turning counter-clockwise. If the freehub is very tight and difficult to loosen you can get more leverage by mounting the allen key in a vice clamp and sliding the wheel down onto it. Then you can loosen the freehub by turning the wheel counter-clockwise.
Once the freehub body is removed, clean the hub surface and bolt and grease all the way around the bolt’s threads before re-installing.
Gently thread the new freehub body onto the hub splines and thread the bolt back into the hub. Using the allen key, torque the bolt to approximately 45Nm, or about 400 inch pounds.
First time attempting to build a wheel. I'm getting cold feet and I'm starting to wish I had just ordered one of the bargain basement $70 wheels off eBay.
I already have in possession the Shimano m529 rear hub and the 26" Sun Rhyno Lite 32h is on the way. I've ran the numbers to get the spoke lengths but would feel more comfortable if someone with more experience could run them. Using 3-cross lacing.
I plan on using Sapim Race double butted spokes and nipples.
ERD 548mm for Sun Rhyno Lite 26"
M529 Rear Hub Specs
Non-Drive Side Cent... Read more >>
Hello, I need help to unscrew generator from front wheel hub because I'm out off options, even master knowed little about this type generator. It was impossible to unscrew it with regular wrench and only resulted in nut denting. According to diagram hb-nx70 generator should be removable but place where it unscrews looks as if all solid. Maybe I missed something? Here's some images:
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Hi I have a mountain bike Trek mamba 29er and I want to change the wheels and my brake rotors have center lock. When I change the wheels I have to change the brake rotors too or I can use it. Please help me I'm a little lost... Read more >>
Hi guys- I don't know if anyone will be able to help me but here goes...
I have an old (2006) road bike which had mavic ksyrium equipe wheels on it. the width of the dropouts on the back is 130mm.
anyway, my rim brake surface got a kink in it so i got some "new" old wheels off ebay which are a slightly better model, ksyrium SL ssc.
only problem is that when i went to install the rear wheel i noticed it wasn't sitting right in the frame. on investigation i found that the axle width of this wheel appears to be 135mm. (the one on the old wheel is definitel... Read more >>
I've got a very strange sound/problem on my Mtn bike, hoping someone can help. Local shop has no idea without tearing apart my hub as a guess. Other threads have been useless.
The bike is a Specialized S-works Stumpjumper, 2008. Mavic CrossMax hubs and rims.
When descending/cruising, at quick speed, ONLY while either coasting or backpedaling, I get a very loud scream/rub kind of sound. It sounds a bit like something rubbing against the tire treads, except a more internal-type sound, if that makes any sense. The sound does not ALWAYs occur. And when it does, it immed... Read more >>
This hub came with my Bianchi Dama Bianca Alu 7000 She 9speed (2010). It says Novatec on it but no model number.
I want to change the cones but I don't know which ones to get. Anyone got any ideas?
Here are some more pictures:
Thanks!... Read more >>
I have a dutch bike that I bought in Copenhagen. It is back breaking and has a hub gear. It keeps changing gears randomly either when I try to go up into the highest gear (there are 3 gears) it will go into that gear for a minute and then when i least expect it and am pedalling hard to get past a truck it will slit into a lower gear. It is like the pedals give way. It does not go out of gear, it just slips into another gear. I have little control over what gear I am in. Today I did my whole 20 minute cycle to work with out touching the gear change on the handle and it went down form 3 t... Read more >>
I have a epic 29er, I need to replace a broken spoke on the rear wheel. I really want to do it myself(local shop is 2hours away) and want to invest in the proper tools to do so. So my question to is how do I replace the broken spoke(steps) and what speciality tools do I need?... Read more >>
Hi everyone. I'm new to this forum and new to the bike community in general so i apologize for anything i may do or say that may seem naive.
My sister got into an accident on her brand new bike so it needed to be repaired by a mechanic. long story short instead of being repaired, it sat in storage for over a year so I decided to take it out and repair it myself. So far I spent about 9 hours fixing things like the rear breaks, tires, gears, bolts, chain, seat, and various other things. Everything seems to be working except the rear wheel. It keeps coming out of place which cause... Read more >>
Hi Everyone. I usually can figure things out but this one has me stumped. I am refurbishing a Hedstrom Trike from the 1970's or 80's and I can't for the life of me get the rear axle/differential out of the frame. I have taken a lot of pictures and I hope someone on here has an idea of how to move forward. The bike has a 3-speed internal shift hub sistered to a chain drive differential of some sort. The rear axle is definitely two separate pieces but neither will come out of the frame. I managed to get the right side wheel off but the left remains a problem. It doesn't seem to thread off or sli... Read more >>
I'm trying to recondition an old Mongoose mountain bike as cheaply as possible for a friend who would like a bike just for getting around. It is an early 90s Mongoose Maneuver with a solid Cro-Mo frame that is in fine shape. It does have a couple of problems after sitting around for so long, however, and I need a bit of advice.
The main problem is that, if I pedal and then stop, the chain sags (on top) and bunches up; it seems that the freewheel is not so "free" anymore, and the sprockets themselves are pretty rusty.
The other problem is... Read more >>
i have a schwinn passage 21 speed bicycle it has a 700c rear rim and a 27 inch frount what should be on it... Read more >>
Heyo, I need to get a new rear wheel for my Specialized Epic Comp 2012. Something preferably under $200, which I know isnt a lot, but its what I got. I have been looking at the Mavic Crossride 29er, but I don't know if that is compatible for my bike. Any help would be appriciated, thanks!... Read more >>
Just bought a set of fancy anodized skewers, didn't cross my mind that the rear one would be for 10 and 11 speed. I need to shorten it to fit my 7 speed hub and there is not enough spare thread. Does anyone know the standard thread for a 3/16" dia skewer rod? I could go to the hardware store and start trying nuts, but I thought I'd ask first.... Read more >>
Today I was changing out the cassette on my fairly new mountain bike, no problem with the existing cassette, just changing the gearing. I removed the retainer screw, but I could only remove the first three rings, the rest of the cassette was stuck on. Here is a picture, please tell me what you think. Thanks, Dan... Read more >>