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

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95 views

Bicycle rear hub sounding weird

My rear axle broke about 2 weeks ago, and I replaced it with a new one. I also replaced the ball bearings with new ones when I did this. The issue I am having is when I'm going with a higher speed ...
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1answer
1k views

How do I remove the freewheel side of a flip flop hub?

I've got one of those flip flop hubs, and I need to remove the freewheel side and either service or replace it as it has started slipping really badly. What tools do I need?
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1answer
261 views

How much “play” is normal in a Sturmey Archer 3 speed hub?

I inherited a bike with a Sturmey Archer 3 speed hub (Sturmey Archer AW, from 1984). I am very familiar with free-wheels and cassete hubs, but this is fairly new to me, although I did some research ...
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1answer
165 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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1answer
1k views

Freehub has started slipping, what can I do?

I've just gone through the london winter and both my bikes now have a slipping freehub. Admittedly my mountain bikes' freehub is quite old and probably worn out, but I'm wondering if they are seized ...
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7answers
3k views

Is there such thing as a freewheel that doesn't click?

The clicking sound of the freewheel on my singlespeed when it's coasting is annoying for me, so I flipped over my back wheel and rode fixed for a few months in blissful silence. But having to pedal ...
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2answers
581 views

More freehub removal problems.

So helpful folks here helped me get the cog and lockring off, and now I'm stuck with this. I looked on Park's website again for "removal of freewheel" help, but mine didn't fit with any of the ...
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5answers
894 views

Fixed gear wheel hard to spin

My wheel feels harder to spin than usual. I just put new tires on, and at first I thought a tire must be rubbing, but that's not the case. Seems like the hub might just be gunked up inside, but I'm ...
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1answer
384 views

Should cassette “wiggle”

Recently My freehub broke and so I removed the cassette to replace the freehub and noticed, whilst off the bike, 4 of the remaining bolted together 8 sprockets wiggled (4 wiggled together but ...
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1answer
722 views

Mountain bike axle diameters

Out of interest I would like to understand the benefits of having a 15mm or 20mm through axle over a 9mm QR (and a 10mm vs. a 12mm TA on the rear). What difference does it make to the ride?
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1answer
753 views

Any experience about radially-laced hub flanges actually breaking?

Most hub manufacturers forbid lacing spokes radially, mostly because there is less material in the radial direction away from a flange hole than in the standard 3-cross, tangential lacing. (UPDATE: ...
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1answer
342 views

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

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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2answers
207 views

Why are hub shells such different diameters?

I'm curious: why are some hub shells much larger diameter than others? Is it an aesthetic consideration? Or are there cost/functionality tradeoffs? Take for example this Dura-Ace hub -- pretty ...
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1answer
212 views

Has Shimano produced Ultegra 600 Hub Set, 32 hole?

I found this item at an online shop, but can not find infomation about this product. Anyone knows this hub set? and any review infomation available there?
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1answer
344 views

What hub to purchase for a GT aggressor?

I have a GT Aggressor 1.0 Specs here: http://www.gtbicycles.com/2013/bikes/mountain/trail/aggressor-1-0 Recently on a long ride, the crank started to roll freely after a long downhill. i.e. when ...
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1answer
415 views

stiff gears and chain coming off while pedalling forward (hub gear)

So I recently replaced the back wheel's tyre on my bike. Got it all fitted back on again, and the chain and everything are in place as they should be. However, changing up gears has become very stiff ...
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2answers
475 views

How do I take apart the axle and freehub on this bike

I have a long wheelbase recumbent built by Sun Bicycles. There are some complications with finding out what kinds of components went into the interior of the bike. Brakes and shifters have their ...
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2answers
398 views

Singlespeed Hub - Rear Axle Swap

I have two sets of wheels, both laced to surly singlespeed hubs (the older "new" hubs, not the "ultra new" hubs which seem to make this process much easier). Anyway the wheelset I like better has a ...
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1answer
117 views

Can I replace a 9spd freehub with a 7spd one?

On my commute this morning I established that my freehub needs replacing. There's obviously something wrong with the ratchet mechanism, because it intermittently refuses to engage. My existing setup ...
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3answers
7k views

How do I change my single-speed to a fixed gear?

I've been biking on single-speed for a few months and would like to play around with a fixed gear. I've heard of a flip-flop hub, but I'm not sure exactly what it is. And without any fellow bikers - ...
2
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1answer
381 views

Suspension Fork Axles

I'm looking to upgrade my suspension forks from Rock Shox Dart 3 to something like Rock Shox Sektor RL. A lot of the forks have either a 15 or 20 mm axle, or 'Maxle'. What does this mean? Will this ...
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3answers
2k 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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1answer
206 views

Am I going to do any damage by swapping cassettes frequently?

I've got a separate wheelset for cylocross riding and road riding. Would it be detrimental to the life of my cassette or hubs If I swapped the cassette between my road and off-road wheelset ...
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2answers
5k views

How did my rear freewheel become incredibly tight overnight?

I got a flat yesterday morning after a normal ride, walked my bike inside the house and propped it upside-down (like this) overnight. This morning, I changed the flat and put on some brand new tires ...
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2answers
1k views

I assambled rear wheel hub, but now rear wheel is not turning freely

I disassambled/assambled rear wheel hub, but now rear wheel is not turning freely, what have i done wrong?
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2answers
3k views

Can a Shimano Alfine 8 speed be reduced to 120mm hub spacing?

I would like to buy a single-speed bike that happens to have 120mm hub spacing, and add the Shimano Alfine 8-speed hub. That hub, however, seems to have a 135mm spacing. Can the 8-speed Alfine hub be ...
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1answer
1k views

Is there a tool (or preferred method) for removing the snapring that holds the cog on a coaster brake hub?

I was overhauling a coaster hub the other day. The snapring was recessesed and no screwdriver in my arsenal was small enough to remove the piece. Park recommends using a small screwdriver to remove ...
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1answer
2k views

How do I clean the inside of a freehub?

I didn't know any better and I let degreaser drip into the freewheel body of my Shimano FH-RM65. Now it makes a terrible retching noise when it rotates. How do I clean the inside of this thing? ...
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3answers
2k views

Can I lace my hub with all inward or outward facing spoke heads?

It seems conventional wisdom says to alternate inward vs outward spoke heads going around the flange when lacing a wheel, like this: However, I'm wondering what the reason for this is, and if it ...
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2answers
1k views

100 mm front hub, 94 mm fork dropouts, options?

Simple as that. I thought I could He-Man the fork to fit the hub as it's only 3 mm on either side. Looks like it requires a bit of force and I'm concerned about breaking something in the long-run; ...
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1answer
636 views

How is the quality of carbon wheelset from taiwan?

Recently I read from some websites, it sells taiwanese carbon wheelset, How is the quality of the carbon rim, spokes and hub from those wheelset made in taiwan ? I didn't see any brand name, so it's ...
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3answers
7k views

What tool is needed to remove a Shimano HG-50 freewheel?

What tool is needed to remove a Shimano HG-50 freewheel from the wheel hub? It looks like a 12mm or 13mm Allen key. Will this do it or is there some detail I have missed?
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2answers
401 views

Phil Wood Hubs: Anyone had a Pawl go?

I got front & rear Phil Wood hubs for a touring setup back in Oct of 2011. I'd been using them for commuting to work -- averaging 20 KM a day. Except I'd been off the bike for the month of ...
3
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6answers
758 views

How to build a wheel

I'm in the planning stage of building a new bike. This will be a light road bike for city runs and transport. For racing I have other bikes. I'd like to build the bike from ground up by assembling ...
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2answers
231 views

i have an se dirt jumper with 4 sealed bearings in the rear hub, can i convert it from QR to solid axle?

i dont want the quick release for single speed, i want to ditch the skewer for a solid axle to torque it down good for single speed... my LBS mechanic said they couldnt do it but with sealed bearings ...
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2answers
1k 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
1k views

Can I replace steel bearings with ceramic bearings?

I'm using WH-550 from Shimano, can I replace my steel bearing balls with ceramic bearing balls?
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1answer
84 views

What 's the size of bearing?

What's the size of ball bearing on WH-R550 hub, is it 1/4" for the front one and rear one ? Can I replace them with 1/4" ceramic bearing ? Thanks
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1answer
441 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
326 views

Small amount of wobble in wheel

If I grab my [suspension] forks tightly and push against the wheel sideways, there is a slight amount (few millimeters on 26" wheel) of play/wobble from the axle/hub. The QR is done up tightly. Is ...
3
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1answer
631 views

Why are axle cone nuts on the left side of a bike not reverse threaded?

I recently discovered that the adjustable sealed bearing cartridges on my rear hub failed prematurely because one of the "cones" (cartridge shoulder nuts) had somehow tightened itself, putting undue ...
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1answer
257 views

Raleigh Twenty forks too narrow to accept 93mm hub

93mm hubs are standard size for the R20s but on this particular bike there isn't enough clearance between the fork ends to get a wheel in (I'm using an original R20 wheel as a replacement so it's ...
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3answers
250 views

One vs Two Piece Axle?

After finding out my bike has a road rear (130 mm) & disc brakes, it's been difficult to source rear hubs. Cyclocross allows disc brakes, and more commuter/cx frames are appearing but all seem to ...
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2answers
6k views

How to set up bike so that back-pedalling stops the rear wheel?

My first bike was a 1976 Raleigh Strika. It was brilliant and was distinguished by having only a front brake lever. To get the rear wheel to stop one simply back-pedalled. This was a v. efficient way ...
4
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2answers
1k views

Sturmey Archer 3-Speed Hub Slipping?

I'm about to go look at a 1972 Raleigh. The seller says that the bike slips out of third gear into neutral. Is this a simple fix (e.g. a cable adjustment), or should I stay away from such a ...
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3answers
1k views

How do I know if my cone/cap/bearings need to be adjusted?

I have a custom road bike with (mostly) Shimano parts. I love to ride but I'm not so strong on the technical side. I have quick-release wheels; I regularly (3-4 times a year) put the bike in a bag ...
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2answers
2k views

practical pro and contra for Nuvinci CVT especially for hilly terrain

I'm thinking of buying new bike next year, most probably combo for exercise & commuting in summer. Since terrain is relatively hilly here and both fixed city-bike and casual combo with 3x7 gears ...
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6answers
7k views

7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go?

Sheldon Brown says "Add a 4.5 mm spacer before installing a 7-speed cassette on an 8-, 9-, or 10-speed hub", but doesn't seem to show spacer placement in any picture. My direct experience is that the ...
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4answers
601 views

Is there 28 hole front/rear drum brake hub

No time research this now, so has there ever been made a 28 hole front or rear drum brake hub? I know that Sachs and Sturmey-Archer have done a lot of drum brakes. Neither to my knowledge have such a ...
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4answers
5k views

Bottle dynamo vs. hub dynamo

I have SpinPOWER usb charger kit, and I am using a bottle dynamo with it. I have heard that the power output from a hub dynamo is higher than from a bottle dynamo. Does anyone have any information ...