important: Nuts and bolts on your bike should always be tightened to the manufacturer's specifications.

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.

Freehub Removal

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.

Freehub Installation

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.

Related Links

Recommended Tools

Categories

Discuss this topic in the Bicycle Repairs and Mechanics Forum

Shifter Doesn't Have Clicking Sound

Lastest post 23 hours ago

Hi, Pardon me if this is not the right place to post the below question. My bicycle gear was not shifting properly so I decided to fix it after watching several youtube videos. Several videos advised that the gear should be shifted to the highest speed (i.e. smallest cog) before doing any tuning i.e. adjusting the High/Low limit screws or adjusting the cable adjustment barrel of the derailleur. ...

Read more

So, before I explain the issue, a bit of background. I took my bike to college, but ended up not riding it much, so it sat outside for the majority of the academic year, chained to a bike rack. Because of that, many of the screws and gears and such have rust on them (I know, I'm an idiot for leaving it outside and probably ruined it, but I'm trying to fix what I can). The bike is still ride-able ...

Read more

Crank Puller Failing to Pull Crank

Lastest post 5 days ago

Hello there, I have been trying to remove the cranks from an old bicycle frame. I use a crank puller (with an attached arm) according to the tutorial on this site—turning the external threading clockwise into the crank, then turning the inner bolt of the puller equally clockwise against the spindle inside the crank in order to force it off. Nevertheless, the crank will stick in place. I have tr...

Read more

Just wondering about the possibility of upgrading only the front brake of an Apex 1 mechanical grupo to hydraulic. I figure the front brake does way more and it would save a ton of $$. What I'm wondering about is if the left hydraulic brake lever/hood would have a different shape compared to the mechanical brake right shifter. Anyone know exactly how different they are and if it would f...

Read more

Hi, everyone, My 6¾-year-old son was due for a new bike. Without consulting, his grandfather bought him one from a box store. My son loves it. Honestly, it's mostly an OK bike from what I can tell (with all the caveats about serviceability, etc., that come with a cheap bike). However, the brakes are dangerously bad. From running speed, the stopping distance is on the order of 40 feet (12 m) (my ...

Read more

Purchased this last week and went to pull the crank off today. What I found is that the threaded hollow on the non-drive side is too shallow to fit both the bullet and the threaded extractor nut. With the improvisation, I was still able to remove the non-drive by using a small, thick washer. Certainly not recommended though. I believe I saw Shimano makes their own crank puller for Octalink, so tha...

Read more

I am in the process of getting one of my bikes restored. I have everything I need to get it set back up right (brakes, gears, reflectors,etc.) but I need to know how to apply make and model stickers and decals. If anyone has done this before, can they PLEASE guide me on doing it, as I've never done this before. Thanks!...

Read more

Accessory hardware

Lastest post 2 weeks ago

On my new bike purchased in early spring, had plans to install fenders, a rack and bottle holder. Was thinking I would use stainless steel screws for all of it. Then started reading about galvanic corrosion between aluminum frame and stainless screws. I used a product called Tef-gel, supposed to prevent the corrosion. Find myself having to periodically retighten some of the fasteners, but figure ...

Read more

Hi, here (and/or attached) is a pic of the rear derailleur mount on a Schwinn Meridan7 7-speed adult trike:   IMG_3567 (Small).JPG (Size: 76.74 KB / Downloads: 26) Can anyone tell me: 1. What type of derailleur mount is this? Frame mount? Standard mount? Direct mount? Or what? 2. Can I convert this easily to a hanger-type mount instead? I see some 'generic' types like a SunRace o...

Read more

Miller Dynamo.

Lastest post 3 weeks ago

Hi there mates, Warm greetings. It felt great to be here. Well I am seeking your advise given relative lack of knowledge. I have a Miller DynamoNo. 32 There is a screw cap which I guess is for positive wire. Can you please suggest which one is -ve? Is it the Anchor hold screw of the Dynamo (that secures it to the bicycle frame) ? Your informed reply and guidance is much appreciated. Warm reg...

Read more

InSync Grind 320

Lastest post 4 weeks ago

Hello, I have a pretty old bike - Trek Alpha 4100 - with a very old suspension - coil-based InSync Spinner Grind 320. I'd like to open it up fully for cleaning and greasing, by separating the stanchions from the lowers. The coil-side stanchion has a screw going through it that doesn't allow it to separate from the lower. The screw is screwed into the lower, from inside the stanchion. Is anyone fa...

Read more

SunTour Freewheel "Perfect" model

Lastest post 4 weeks ago

Hello again folks, I have been working on a bike and when cleaning the freewheel (6 speed) noticed that the spacer between the top 3 and bottom 3 cogs was wider than the other spacers. I had ridden the bike as received and noticed that the shifting seemed odd and thought it may have been due to the improper chain width. Bike was purchased from the original owner, but I highly doubt that she had di...

Read more

Hi, I had a shimano 505 front derailleur, when the shifter in 3, it won't go to largest cog, stay in middle cog, the cable is tight enough, if I pull the cable manfully, it will go to the largest cog. here is pictures, who can help me to fix it? peter ...

Read more

Star blubike lube

Lastest post 1 month ago

Has anyone used this for pedals and/ or bottom bracket? Is it any good? I have sounds coming from pedals & BB.   20210528_174952.jpg (Size: 37.76 KB / Downloads: 45) ...

Read more

I was hoping to buy a Centaur Power Torque crank for my GT Transeo 5.0 build. The shell is 73mm though and I got a message back from them yesterday stating none of their cranks will fit this size Bottom Bracket shell. Be aware—as some retailers list that it is 68/73mm.   ezgif-3-3e4fd7bb285f.png (Size: 88.74 KB / Downloads: 15) ...

Read more