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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2answers
775 views

Can I replace a 135mm/5mm QR hub with a 10mm-diameter IGH?

I have a bike whose rear wheel has "quick-release 5 x 135mm". Will I be able to replace this rear hub with an in-gear hub that has "Length 135 mm, Axis diameter 10 mm" (this is the N380 hub)?
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1answer
150 views

Help me understand my Hub Gear bicycle

I recently acquired a second-hand Hub gear hybrid bike. It only has 3 gears. I know little about bike mechanics but would like to try and understand more. When I cycle the gear shifts between gears ...
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1answer
97 views

What is this cogset body?

I have some backlash (free movement) in my body of cogset, so I try to dissemble my cogset to discover this weird body: I'm trying to find a new one but I don't know how to call it. Any idea how it ...
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1answer
199 views

How do I figure out what rear axle to purchase for new wheel?

I have a Voodoo Bizango 2016 and recently purchased a new rear wheel for it as I’m a larger rider and kept popping spokes. It’s a Halo vortex 29" wheel with a Shimano HG freehub. I’m trying to ...
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2answers
212 views

Over-locknut dimension (hub distance) (cup depth) changed after 10.000km

Recently I wanted to replace my bearings and spotted something strange. My Over Locknut Dimension has reduced by 7mm. You can spot the difference when you compare it to the new hub: Can this happen ...
2
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1answer
98 views

Fixing hub gasket squeal

I have a relatively new Salsa Journeyman, which has now, after about 200km, developed a squeal in the front hub. The squeal is relatively quiet on low speeds, but gets noticeably loud when riding ...
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3answers
132 views

Recommended transmission for a commuting bike

I want to get a new transmission group for my bike and I'm quite confused, so I'd really apreciate some help from the community. Here's some context: I own, since last October, a Giant Escape 2 (...
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2answers
1k views

Alfine 8 crunching/grinding in highest gear

I have recently bought a bike with an Alfine 8 hub and it was working well for the first week or so. Then there was a couple of gear drop outs whilst I was riding so I made sure to line up the yellow ...
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3answers
8k views

What's wrong with my rear wheel? Wheel moves about 1/4" front to back when brake is fully applied, cassette seems a bit wobbly, some rubbing noise

I first started inspecting my wheel because I noticed when I applied my brake while not riding, I could push my rear end and the wheel would turn forward and back about 1/4"-1/2" each way (but the ...
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3answers
58 views

What width between dropouts is suitable for a hub of Xmm?

For a hub of 120mm, what would the dropout spacing be on a typical frame? Or for 130mm, or other sizes - in each case, how close to the hub width should one expect the frame spacing to be?
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2answers
108 views

Diamondback Century 2 (2015): What thru-axle skewer dimensions fit the original axle hubs? Lost the originals/internet search unhelpful

As the title says, I lost the original axle hub skewers (both front and back) while moving. I bought this bike secondhand over a year ago, and it's a 2015 Diamondback Century 2. Diamondback no longer ...
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1answer
815 views

Wheel axle too short on the fork

I think my front wheel axle is too short, it is only half the size of the fork notch, see the picture: But if I remove the nut, the fork would touch the wheel and the disc brake. When I insert the ...
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1answer
883 views

Coaster brake heat management and lubrication

I've heard that coaster brakes can reach high temperatures, so it desirable to use grease designed for high temperature applications. My questions are: Would a grease labeled max 220 °C be good ...
2
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1answer
275 views

What 70's/80's freewheel threading is most common in central or eastern Europe?

Just interested to know? For example, if an 80's steel frame road bike in Europe came with Suzue high flanged hubs (94mm spacing front and 126mm rear), what type of freewheel threading would be ...
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3answers
1k views

New wheel, why not go with disk hub?

I'm getting a new rear wheel built for my commuter. My bike frame does not support disk brakes. I do not intend to use disk brakes in foreseeable future either . I checked the price for Hope rear ...
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2answers
1k views

how do I adjust the wheel?

I've just fixed my flat tire on the front wheel and now I found out that if I try to push the wheel to the sides it kind of moves a little. it feels like it's not secured to the hub. How do I fix that?...
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2answers
327 views

Downsize Chainring

I have a Montague Boston full-sized folding bike which ships as a fixie. I've added a Sturmey-Archer 8-Speed hub and now am trying to determine the optimal chainring size. The stock chainring has 42 ...
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1answer
58 views

Internal hub gear suddenly stopped shifting

I have never had an internal hub gear bike before, so I don't know much about them. My issue is that all of the gears stopped working suddenly when I was just riding the bike. The bike has 5 gears, ...
2
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1answer
212 views

Single Speed Freehub

I have a Road bike with a Shimano 8 Speed Freehub. I want to go to a single speed bike, but I'd rather not use a fistfull of spacers. Is anyone aware of a single speed freehub body that I can replace ...
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2answers
3k views

Planning on building a fixed-gear/single-speed from an old Schwinn World. What new parts will I need?

I think I want a flip flop hub, to keep my options open. If I get one off amazon, do I need to buy a freewheel and fixed-gear cog as well, or will those come with the hub? Also, does the hub have to ...
2
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1answer
665 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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1answer
4k 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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2answers
2k 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 ...
2
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1answer
93 views

Proper way of choosing hubs

Not a product rec question, I mostly need to know the way of selecting the correct hubs for me. I've got a GT Avalanche 9R expert and I'm not happy with it's hubs. I use this bike only for xcm and ...
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2answers
439 views

What could be causing excessive friction in a new rear hub?

I recently had my bike (Focus Mares CX) serviced by my LBS, during which they replaced my wheels with a set of new Campagnolo Khamsin wheels. In the month since I had that done I've found it markedly ...
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1answer
3k views

What size are shimano MTB (wheel) hub ball bearings?

I wish to replace the Ball bearings in my Shimano hubs. What is the standard sizing for MTB?
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1answer
2k views

Why is it important to keep bearing sets when greasing a campagnolo hub?

In almost all cases where hubs are regularly serviced, bearings don't need to be replaced. The general consensus though is to replace bearings after so many thousands of kms. Many posts on the web say ...
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2answers
232 views

Will riding cobblestones and rough streets kill my cup and cone hubs?

I live in pittsburgh, and we have some hills and streets which are belgian block, brick, poorly paved and pocked with potholes. It can be very jarring, but I still find myself flying down these ...
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1answer
915 views

Finding Correct Size Wheel for Bike

I am looking to replace the stock wheelset on my 2009 Jamis Aurora. I'm looking to replace wheels because I have a number of spokes break over the wheel lifetime and now my rear wheel is only in true ...
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2answers
5k 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
164 views

Building a 700c bike. Hub sizes

Trying to build a bike on a cyclocross frame. So the wheel will be 700c. Need hubs. Fork size is 100x15 with thru axle. Rear drops size 142mm x 12mm thru axle also. So it means I need any hubs which ...
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1answer
1k views

Purpose of locknuts+adjustable nuts on sealed hub bearings

What is the purpose of these locknuts? How tight should they be? EDIT: I'm asking because even if I remove all the nuts from the axle, leaving just the axle and the bearings, it still won't have any ...
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2answers
184 views

Innovation in cycle wheels

Do you think there is still some innovation that can be done to cycle wheels? Like changing the cycle spokes pattern? Or is it already in an optimised state?
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1answer
999 views

Proper lateral rear hub position (with spacers)

What is the proper position for a rear hub along the axle? So far my understanding is 'somewhere' slightly toward the non-drive side to leave room for the sprockets - and I understand that the rim is ...
2
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1answer
1k views

Grease for hub bearings? (NLGI grade)

I know this question has been asked many times on here and other bike forums. I'm struggling to find a proper answer. The NLGI basically refers to the thickness of a grease. I have some lithium ...
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1answer
820 views

What type of hubs attach on only one side? [duplicate]

I wish to build a tricycle and one of the limiting factors is getting the front hubs. I search for tricycle hubs on eBay and get nothing useful. I need both the hub and axle or the axle dimension has ...
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4answers
287 views

Can an imperfect hub make a disc rotor rub?

I had a 160mm disc rotor on a road bike that was rubbing a bit in one spot, not severely, but enough for me to notice. I've tried to true it a few times over the past couple months with little ...
2
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2answers
132 views

Loose Hub on front wheel

Front wheel hub is loose and the whole thing wobbles a bit. Im a fan of dubstep but there's a little too much wubwub in my hub. How do I tighten that bad boy up properly? Thanks!
2
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2answers
3k views

How to recognise a 6-speed freewheel compatible hub?

I need to change the freewheel and the hub on my road bike and have been looking for a suitable replacement. I wish to keep my rim so I will rebuild the wheel. Also, I want to stay with a 6 speed ...
2
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1answer
690 views

Fixed gear conversion - hub spacers

I am converting my 80s steel peugeot to a fixed gear. I have purchased most of the parts an had a wheel built onto a SS hub. Now, SS hubs are narrower than road hubs - 120mm vs 130mm (although I ...
2
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1answer
502 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
2k 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
1k 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 ...
2
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1answer
59 views

12-32 freewheel cluster?

Does anyone manufacture a 12-32 7-speed freewheel cluster to replace the current 13-28 on my 20" Dahon, with a view to touring with panniers? If that's impossible, & I decide to buy a 20" freehub (...
2
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1answer
145 views

Are sealed bearings equal to cartridge bearings in single speed hubs?

Single speed hubs are often speced with sealed bearings. In my brief market search I haven't seen any hubs with cartridge bearings in the specifications. Are sealed bearings used synonymous with ...
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1answer
123 views

When I stop pedaling my bike the rear gears keep turning, is this an easy fix? Bike is a vintage Raleigh Grand Prix

Raleigh Grand Prix chain and rear hub keep turning when coasting
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1answer
2k views

Is it possible to use a 9 speed rear shifter with 11 speed cogs/cassette? Is there a disadvantage?

I'm new to biking and I plan to upgrade my bike, but with limited funds I can only upgrade the wheelset and cogs(cassette). Is it okay if I add the 11spd cogs but my shifter is only 9 speed (limited ...
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1answer
2k views

Is it usual for a freehub to have play? [duplicate]

I have a new rear wheel (Shimano Ultegra WH-6800) and the freehub has about 1mm-2mm of play in it. When the cassette is installed and the wheel is on the bike I'm getting a lot of wobble which is ...
2
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1answer
1k views

Rear wheel doesn't turn with cassette

I just got a used mountain bike and on my first trip my rear wheel stopped turning with the cassette. When I pedal it turns the cassette and the gears still change smoothly but it doesnt turn the rear ...
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2answers
2k views

Will two spacers between the cassette and the hub effect the chain line?

So I have a set of custom wheels (White Industries T11 hubs) and when the cassette is correctly fastened to the hub with the single spacer provided the cassette cogs can be moved in the direction ...

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