Questions tagged [hub]

Concerning the parts and mechanism of bike gearing, both internal and external. Multi-speed, single-speed, fixed and freewheel.

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3answers
7k views

Can I swap a shimano free hub body for a campag one and be able to attach it to the existing Deore hub?

I want to convert my Surly Cross Check into a Campagnolo set up. The problem I am having is i have Shimano Deore Hubs on Mavic rims at present. I would rather not buy new wheels, so I am looking at ...
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1answer
1k views

Front Hub Wheel Falling off

I have a Generic 1000 watt front hub motor and the front wheel keeps coming loose. What should I do? I think I have heard of something called a torque arm. Will this help?
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4answers
25k views

Cartridge hubs vs loose-ball hubs

My LBS recommended cartridge hubs to me. Here are my doubts. Seeing as how I never ride in the rain or any such wet substances, I don't really need the "completely sealed" feature. Sheldon Brown ...
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2answers
187 views

What can be done to fix a hub that has come apart?

I noticed recently that my rear tyre was rubbing on the frame when I was pedalling hard; the wheel had a bit of horizontal play in it, so I thought the cones might need tightening. Anyway, I left it ...
3
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1answer
4k views

Lock nuts on new hubs seem strangely tight, but can't seem to loosen them. Any advice?

As part of a new build I'm working on, I just had some wheels built up. The hubs are large flanged Miche Primatos with a double-sided fixed wheel. The rear wheel, straight out the box, seemed weirdly ...
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1answer
531 views

How to grease a hub?

I have a question about hub, When should I grease my hub ? every 20000 km ? How do I know it needs new grease ? Because I can not see if the grease is dry or not...? Thanks
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2answers
4k views

Any tricks to disassembling an Easton R4 rear hub?

We're looking at a Raleigh (very) lightweight bike with Easton R4 hubs on it. The rear (apparently part # HD10M1732 on the hub) has a broken spoke on the non-drive side. To access the spoke ends we ...
3
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1answer
108 views

Why front hub axle sticks/freezes when riding extreme downhill

My front hub axle has already frozen when riding extreme downhill. Looking at the hub, it looks like the right hand cone has self-tightened. Can you explain why this happens, and how to fix it?
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2answers
915 views

Early Rider Belter hub maintenance

My son has had an Early Rider Belter for around 14 months. Recently, I've noticed the free-wheel sounds "gritty", and there is quite a bit of friction if you move the cranks backwards while the rear ...
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1answer
699 views

Boost 148 and 110 standard specification

Where can I find exact specification for boost 148 and 110 axle specification. I was able to find many documents describing main features of it, but I would like to read document with all exact ...
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2answers
1k 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 ...
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1answer
787 views

What are rotary gears? Sturmey Archer 3 Speed

I am confused by the three three-speed hubs that Sturmey Archer offers that are supposedly the same thing (3 speed hubs with a 177% range). I can gather that the S-RF3 is simply an Aluminum version of ...
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3answers
976 views

Are carbon hubs a good idea?

I'm beginning to see manufactures making carbon hubs and am wondering if they have the potential to perform better than conventional metal hubs or if they are just a way to save a couple of grams of ...
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2answers
2k views

Do DC HUB Motors For Electric Bikes use regenerative braking?

Or do I need a special control circuit aside from the included electronics?
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2answers
235 views

How does this hub come apart?

Really, I have two questions. But first, I see no place to put a wrench on this hub. Well, there is one small notch on one side on the dust cap (on the other side). How do I get this hub apart? It's ...
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1answer
562 views

What is this point of this Phil Wood “Rohloff Disc Rotor Compatible Hub”? [closed]

http://www.philwood.com/products/hubspgs/rohldisc.php As far as I can figure it is for people with Rohloff-equipped touring bikes so that they have the same rotor bolt pattern on their front and rear ...
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1answer
59 views

Which Shimano freehub body fits Campagnolo Calima?

I have a Campagnolo Calima C17 wheel set with currently a Campagnolo freehub body (FH-BU015) on it. Does anyone know which type of Shimano freehub body fits on this wheel hub? I searched but I cant ...
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1answer
102 views

Freewheel threading on Miche flip-flop hub

I'm currently building a parts list for a new single-speed bike. In the process, I came across a nice looking flip-flop hub from Miche: The "Primato Pista/Strada" I figured that adding the fixed ...
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1answer
685 views

How do I reassemble this Quando rear hub?

Closely related to how to reassemble mountain bike rear wheel hub and bearings, but not quite identical and my noob brain cannot piece things back together. I disassembled the rear hub to clean it ...
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1answer
1k views

Front hub conversion Shimano HB-M756L XT to Thru-axle

Has anybody converted a Shimano HB-M756L XT Front to a 15mm thru axle? The problem is that my bike fork has 15mm holes for thru axle but I have a new/nice set of QR wheels. I need to either convert ...
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2answers
239 views

What speed is my Shimano Nexus 8 Hub in?

I made a mistake when changing a flat. I didn't have it in 4th speed. When I was changing the flat I shifted it for more give on the shifter cable >_< . Now my shifter says 4 and I don't known what ...
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1answer
183 views

Can you identify this Sachs hub?

I recently picked this up along with a couple of old wheels. I don't know it's age or history. I've only got as far as identifying it as a Sachs. There are no other markings apart from the logo ...
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2answers
3k views

Maintence on Mavic 500 hub without Mavic 670 tool

I have a beloved but well used front wheel built around an old Mavic 500 hub whose bearings are finally starting to give up the ghost. If you hold the axle and spin the wheel you can feel it grind ...
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2answers
1k views

Where are the bearings in thru axle hubs?

So I’ve looked all over the internet to find an anatomy picture of a thru axle hub, because I don’t understand where the bearings go, and I can’t find anything helpful. Can anyone help me understand ...
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1answer
306 views

Replaced rear axle, now seems to wobble

I was replacing a tyre a couple of days ago, and noticed my rear axle had snapped. So I replaced the axle, just a normal road 10mm x 145mm, it's a basic Shimano sprocket set and no-name aluminium ...
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1answer
484 views

Jitter/Sticks on Coaster Brake Hub Wheel

I am having a major problem trying to get my Coaster Brake Hub reassembled properly... I've tried with 2 separate wheels, different components and all. Here's a video of the problem: ...
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1answer
1k views

Hope pro 4 rear hub wear

When I removed the Shimano 5800 cassette from the Hope 4 Pro hub I noticed that there is a significant axial play of the freehub body. Also I am able to slightly twist the driveside spacer from side ...
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1answer
388 views

Missing lock nut part on Dura Ace WH-7900 wheels

Not sure what to call it, but a couple of my wheels are missing the grippy washer thing that sits on the lock nut. They seem to be attached to the lock nut to begin with, but they just fall off after ...
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2answers
506 views

Replace hub from old cassette to new fixed

I have an old mavic race rear wheel where the hub is rusted, but the spokes and rim is in prime condition. Thinking about changing just the hub (reusing spokes) to a fixed flip-flop to use the wheel ...
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1answer
570 views

What parameters are important when replacing a rear hub?

My rear hub is damaged. I have not yet inspected the source of the damage, but the wheel is moving sideways when rotating (a LOT), plus I rode it like this for about 35km. Therefore, I find it ...
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1answer
736 views

Why is my Hope XC freehub locking when the quick release is tightened?

Recently I found that the freehub on my Hope XC rear hub won't rotate, but only when the wheel is in the bike and the quick release is tightened. I've removed the freehub (which slides off easily), ...
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1answer
7k views

Replacing rear hub, beginners advice required

I have a Trek 1.5 2011 compact road bike that I abused a bit too much over winter. The rear hub has quite a lot of sideways play on it and I am buying the tools needed to hopefully fix this. My ...
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2answers
3k views

What's the cone wrench size?

What's the cone spanner size for cone nut on Shimano WH-R550 Front wheel ? Is it 17mm or 18mm ? I tried with 16, it seems, need more, 1 or 2mm bigger. Thanks
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1answer
748 views

Does Enduro make a ceramic hybrid wheel bearing kit for WTB Laser Disc Lite hubs?

I would like to replace the bearings in my front and rear WTB Laser Disc Lite hubs. I'm interested in upgrading the OEM steel bearings to a ceramic hybrid. I've hear that Enduro is a quality ...
3
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1answer
32 views

Front Wheel axle (Quando) with 1/4 bearings

my first post after years of using the forum. I am a mobile mechanic and keep coming up against these Quando front hubs (sometimes unbranded) that have a standard 9mm QR axle spindle, but with larger ...
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2answers
77 views

Bottom bracket needing repacement more often in a single speed bike

I used to live in quite a hilly area but managed well with a single speed Mango aluminium bike on most of these hills. I wanted to know if it is possible that due to extra pressure being exerted on ...
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1answer
88 views

Spokes are too long for wheel build. What did I do wrong?

Tonight, I began the process of building a new wheel. I purchased an Industry Nine Hydra Hub (MTN - 32 hole - Classic Rear Hub - ISO 6 Bolt - 12x148 HG) Here are the calculations posted on their ...
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1answer
1k views

Reassembling Shimano FH-M150 rear hub

First time servicing a rear hub for me. I disassembled and cleaned my Shimano FH-M510 rear hub, removing the nut, washers and cone only from the left side of the axle. When I went to insert new ...
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1answer
1k views

Continuing to use damaged cones in rear hub?

I've read in many different places that if you take a hub apart and see damage on the cups, cones, or bearings (may god have mercy on you if your cups are damaged) That they must be replaced. I ...
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1answer
3k views

Why does coaster brake hub growl when coasting but not when braking or pedaling?

I have an old two-seater recumbent trike with coaster brakes. One of the rear hubs rumbles terribly when the bike is coasting. When the brake is on, or when pedaling, it doesn't make a noise. I assume ...
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1answer
212 views

Overhauled hubs: still some noise

I've just, for the first time, finished servicing the hubs on my bicycle. They are of the cup & cone type (Shimano). The cones of the front hub where pitted so I got them replaced, along with the ...
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2answers
17k views

Remove rounded nuts/bolts from wheel on old bike

I have an old bike I need to repair (including flat tyres!) Unfortunately it has rounded nuts on it and can't seem to unscrew them. Is there an easy non expensive way to remove them without damaging ...
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3answers
5k views

Can a (relative) beginner adjust spacing on a 501 cromo road frame?

Have acquired a cheap old Peugeot road bike from ebay; nice cromo frame, but it needs a new rear wheel and unfortunately I didn't check the dropout size before buying. It has an OLD of ~120mm, but I ...
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2answers
1k views

Should I force an 130 mm hub into my old vintage alu frame

I have a classic vitus 979 aluminium road frame where the rear dropout width is 126 mm. Most of the things I hear is that you should not use force on an alu frame and try to fit in an 130 mm hub in ...
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3answers
262 views

Buying parts for an extra set of wheels: will a an 11 speed freehub body accept a 12 speed cassette?

I'm mechanically inclined, but I don't know much about modern bicycles. I have a Rocky Mountain C70. Since I live in the city, I'd love to have a second set of wheels that aren't knobby for the paved ...
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2answers
1k views

Which spokes go on the non drive side and which go drive side?

I just wanted to make sure I understood the guy at the shop. The spoke calculator gives you left side and right side spokes lengths Left side go on the non drive side i.e. the side where the rotor ...
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2answers
133 views

How to get rid of hub play in XTR FH-M975?

I recently bought a 2012 Santa Cruz Superlight 29, and there is some play in the rear wheel. The hub is an FH-M975 (XTR). With the wheel off, you can tell there's some play, but I guess there is ...
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1answer
307 views

Modify modern wheels to fit old frame

I would like to upgrade my wheelset to something newer. Specifically I was thinking about Mavic Aksium (although it remains to be seen what becomes of the current issues with the company). I have an ...
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4answers
354 views

Why are rear wheels dished?

I know it's because of the space taken up by the rear cassette. But why not just make the hub narrower, and not make it asymmetrical? Sure, the drive-side hub flange must be moved inboard to make room ...
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2answers
687 views

Repairing a damaged cone nut

So I've got a nice hybrid bike that I picked up secondhand, was doing some maintenance on it to get it up and running and thought I'd replace the bearings in the rear axle. In doing this, I've found ...

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