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Questions tagged [hub]

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

3
votes
1answer
46 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 ...
0
votes
1answer
44 views

Back wheel lock up, when got off wheel would move side to side [closed]

I have a 29 inch Iron-Horse/Sunday 24 speed. My back wheel locked up, when I got off the wheel would move side to side. I thought I lost bearings, took my freewheel apart and clean. Doesn't look like ...
5
votes
1answer
62 views

Non standard hub bearing?

I need to replace a hub bearing. On it, I can Read ZPL (manufacturer I guess) and 6200RS. 6200 seems to be a standard for (inner diameter x outer diameter x width) 10 x 30 x 9mm. But when I measure, I ...
4
votes
2answers
50 views

Axle - rear hub and washer thing a bit loose

I have a rear wheel that has needed work 3 or more times in around 3 years (of not very regular riding) and I'm wondering if something is especially wrong with the setup on this FUJI road bike. A few ...
9
votes
2answers
907 views

Chain stuck between cassette and spokes and damaged rear hub - any way to fix it?

My rear derailleur didn't have limit screws properly adjusted so when I shifted to the biggest chainring the chain jumped in between the cassette and spokes. I managed to get it out but then noticed ...
2
votes
1answer
79 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 ...
3
votes
1answer
78 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: ...
-1
votes
1answer
130 views

Shimano 9 speed road hub compatible with XT 11 speed cassette

I am looking to upgrade my drivetrain, essentially moving from road (Ultegra and 105) to XT mountain. I'd like to avoid replacing my rear wheel if possible though. I've read conflicting things about ...
5
votes
1answer
118 views

Can I put a 9mm axle hub with a Shimano roller brake into a 3/8" fork?

I have a Gazelle dutch bike which I want to upgrade with a front dynohub. It currently has a Sturmey Archer drum-brake hub dated 1988, which I believe to be a SBF model. I bought a wheel with a ...
6
votes
1answer
274 views

What is the “clip ring” part on my hubs?

I recently bought a vintage Japanese Zunow road bicycle from the 1980's. The Sunshine hubs comes with small little rusty “clip rings” on both sides. Any idea what is the purpose of those clips?
3
votes
1answer
161 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 ...
2
votes
1answer
71 views

Vintage Sealed Hub Maintenance Questions

Trying to do hub service for the first time... I have removed the locknuts on both sides. I'm checking to see if I should be able to hammer the axle out because it's firm. Is there supposed to be a ...
13
votes
6answers
4k views

6-bolt vs centre-lock: pros and cons?

I am having a new set of wheels built, and am trying to decide on whether to go with 6-bolt or centre-lock rotor interface. What are the pros and cons of the two systems?
1
vote
1answer
53 views

What is the difference between hub-cone type rear hubs?

Assume a rear hub that consist of an axle, hub, cones, loose bearings, lock-nut, with hub space = 135mm, with bolt-on disc brake Example hubs Hub 1: Shimano XT FH-M756 Cost Eur40 Hub 2: Cost Eur23 ...
2
votes
2answers
100 views

What road hubs models or manufacturers use replaceable cartridge/sealed bearings? [closed]

whilst opinions differ on which is better, cartridge bearings (aka sealed bearings) vs loose-ball bearings. I'm attracted cartridge bearings based hubs, because of the prospect of just periodically ...
0
votes
3answers
135 views

Can I fit a bigger cassette just by changing the hub and not getting a new wheel?

I have an old 29er that came with a 7 speed shimano tourney groupset, can I replace that with a 9-10 speed new set, just by getting new hubs? or the wheel cant handle that setup? the frame needs to be ...
0
votes
1answer
85 views

Resistance in rear hub?

I bought a new mid-range hybrid bike (Pinnacle Lithium), and for the first couple of weeks it was an absolute pleasure to ride. Then I went on holiday for two weeks, leaving it in a shed in the heat (...
2
votes
1answer
148 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 ...
2
votes
2answers
174 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?
1
vote
1answer
67 views

Freehub Seal Orientation “Axis Sport Disc”

I've serviced my freehub, and on putting it back together am unsure of the correct orientation of the seal between the hub body and the freehub. I have a 2018 Specialized Diverge E5 Sport, with a ...
2
votes
1answer
149 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 ...
1
vote
2answers
68 views

Coaster brake: concave sprocket orientation

The sprocket for my coaster brake hub is shaped concavely in the middle, it is not symmetrical. I've seen some people on Youtube who had it mounted on the hub facing inward, and others facing outward. ...
2
votes
2answers
193 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)?
0
votes
0answers
57 views

What's a good hub for ultra bikepacking races?

I've now twice had the body of the rear hub destroyed during bikepacking racing (999 Miglia 2017 and Race Around Denmark 2018). I'm currently using Zipp 303 Disc with 177D hubs from 2016 and it seems ...
4
votes
1answer
51 views

Need help identifying Industry Nine part

I recently picked up a box-lot of Industry Nine parts, including the items pictured. They are 92mm wide, and of varying diameters. Could someone please tell me what they are, and what they are used ...
1
vote
2answers
128 views

RPM regulation of direct hub motors

I found this bike push-trailer. Because the trailer project is open-source I discovered that the used hub motor is MUXUS XF40 (specs here) In many places on the internet a learned that if such ...
4
votes
3answers
296 views

How to remove a threaded bottom bracket?

How to take this thing off? I think this bike is from West Germany. What tool do I need and is there a screwing direction trick? Thanks! (I am taking this off to repaint)
2
votes
1answer
539 views

What tool do I need to remove this Joytech freehub?

I have tried 10mm allen: too small, spins freely, with very little grip. Hub brand: Joytech On the outer side it has 9 ball bearings. Video showing right/drive side: ...
0
votes
2answers
166 views

What can one damage by bending the wheel?

What parts may be damaged by bending rear wheel manually with very high force? My father bent rear wheel several times with such high force that the tire contacted the seat stays. Could he have ...
5
votes
1answer
152 views

Is it normal to have pins in the cup of “cup and cone”?

I got a shimano hub for my front wheel and rebuilt it last November, but didn't ride much until March. Now I hear a metal on metal grating noice when riding and my best guess is that it is comming ...
1
vote
1answer
198 views

Track cog threading or lockring threading?

On the website of a wheel manifacturer, I can find the following specs about the cog compatibility of their track wheels: Our track hubs are then compatible with threaded track cogs of Shimano 1....
1
vote
1answer
672 views

Rear Wheel Jamming on kids bike after Training Wheels

We got our son a Hyper Metro bicycle from walmart for Christmas and I assembled it with no problem. We also go training wheels for it and when I installed them, the issues began. The rear wheel will ...
0
votes
1answer
69 views

Campagnolo Large Flange Pista (track) hubs

I haven't any direct experience with vintage Campagnolo large flange pista/track hubs. Can anyone tell me if there are issues with mounting a 70-80s era 5-6 speed road freewheel and using them just ...
1
vote
1answer
318 views

Play in rear wheel hub

I've got some play in the rear wheel hub, which makes the wheel move sideways a bit. Here's a video: https://drive.google.com/open?id=1EpXNE9YYdzwxotgWbCeWi2DM9FOlmY7A How can I fix this? Do I have ...
4
votes
4answers
156 views

Uneven friction in front hub after rebuild

I serviced my old mountain bike after 6 years of use. This included replacing balls and regreasing the hubs of the bike. When I tightened the lock nut on the front axle and checked for wobbling the ...
0
votes
0answers
127 views

PowerTap G3 Hub Service Calibration

Does anyone know how PowerTap G3 Service Calibration procedure is supposed to carried? I am asking as the official service I have sent my hub to has trouble in doing it. Personally I imagine that ...
5
votes
1answer
213 views

Winter grease for extreme cold temperatures

I'm using a fat bike rear hub (Sun Ringle). It malfunctioned twice in less than a month riding everyday in winter ❄️. It stopped turning at all so I had it serviced but then it stopped again when it ...
0
votes
2answers
847 views

Shimano 11 speed road shifters with 10 speed hub?

is it possible to use Shimano 11 speed road shifter with 10 speed hub/cassette? if yes, how? I have a set of Shimano Hydraulic 11 speed shifters but I don't want to upgrade hub to 11 speed. Is it ...
3
votes
1answer
364 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 ...
4
votes
1answer
138 views

Can a hub casing be warped/bent?

For a couple weeks now, my commuter bike has been creaking ominously while I pedal, and just the other day, the rear wheel began to wobble up to a full centimeter to either side (rubbing the frame) ...
6
votes
1answer
118 views

Has SRAM discontinued i-light hub dynamo?

I haven't been able to find SRAM hub dynamos lately. Has SRAM discontinued making of hub dynamos?
0
votes
1answer
451 views

DT swiss 370 hub ends in a thread, what is is for?

I bought a second hand wheel which has a DT Swiss 370 hub. I miss-thought the hub is for a 135x9 mm axle, but it is not. After finding out that it was not a 9 mm I took a deeper look to the hub and ...
1
vote
2answers
115 views

Pedal and Cassette Shake

I really need your suggestions. The situation is bellow: I have bought brand new one "Specialized Rockhopper Sport 29" 2017 satin navy-hyper" in a official dealer of Specialized. When i arrived at ...
0
votes
2answers
488 views

Giant ATX 2 2017 axle size?

I have a Giant ATX 2 27.5 2017 and I broke my rear axle 😭. I sent it to my LBS, a week later they told me their axle fitted the front wheel but the back wheel was a different size. They haven’t got ...
1
vote
0answers
121 views

How to reassemble Trek 820 rear wheel? [duplicate]

In the process of replacing my gear cassette on my Trek 820 bike I took apart my rear wheel hub and bearings and I have no clue how the parts are supposed to go back together.
3
votes
1answer
115 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 ...
2
votes
1answer
427 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 ...
0
votes
2answers
172 views

Failing hub bearings on a beater bike (freewheel) — time to replace the bike?

I run an old Raleigh Michigan that only does about 12 miles per week and lives outside a station mostly exposed to the elements. While replacing the rear derailleur cable yesterday (it had almost ...
1
vote
1answer
62 views

Is it worth swapping two front-wheel hubs?

I have an old Bontrager Select rim with cartridge bearings and a newer Syncros Race 27 with loose ball bearings. Both are 20 spoke, would it be worth it to swap the hubs? Or would it even be possible?...
1
vote
1answer
340 views

Remove Maillard freewheel

I'm trying to open the freewheel from an old bike that I have, but I can't find how. I even searched for tutorials on the Internet but I can't find one that looks like mine (please see picture). And ...