Questions tagged [internally-geared-hub]

An internally-geared hub is a gearing system contained within the rear-wheel hub of a bicycle. All the components are contained within the sealed hub, making them less susceptible to the elements when riding. They are generally regarded as lower maintenance than dérailleur gears. Usually they will have a somewhat narrower range of gears, and larger steps between the gear ratios.

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2answers
53 views

Compatible thumb shifter for Shimano Nexus 8 speed internal gear

My bike has an 8-speed nexus hub and the plastic adjustment screw broke. Now I can't adjust the cable anymore and can't use some of the gears. My question is, can I use a normal thumb shifter on my ...
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159 views

Converting a derailleur to internal gear hub

I use my bike for commuting and trips around the countryside (about 400-500km per trip). I'm tired of changing the chain and gears (when I overdrive the chain's lifetime - my bad, I know) as often as ...
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107 views

Dropouts too short for internally geared hub

I am trying to change from a derailleur system to an internally geared hub (Sturmey Archer S-RF3 3). However, it turns out that the dropouts of my frame are too short for the anti-rotation washers ...
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103 views

Potential ways to silence a (new) Sturmey Archer 3-speed hub

I have a new Sturmey Archer 3-speed S-RK3. It's a standard 3-speed hub with a 9-spline driver and disc brake mount. I use the bike with a belt drive and one of the benefits of the belt is the extreme ...
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1answer
110 views

Nexus IGH reluctant to shift after applying load

I ride a belt drive bike with a Shimano Nexus SG-C6001-8D IGH. I'm aware of the normal cable adjustment procedure (aligning yellow marks on the hub), I've done this. When I ride normally, shifting is ...
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Why some IGH have off-center flanges?

I was browsing specifications of internal gear hubs and noticed that many of them have flange center moved to left (relative to hub center). I'm wondering why, I think IGH should have symmetrical ...
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4answers
187 views

Shimano Nexus 8 IGH : recommendation or changes in bike setup for high altitude ride

I have bought a second hand bike (VSF T-100) which incorporates Shimano Nexus 8 IGH. The balls wobble inside the gear. So gear is not smooth. I have to change the IGH with a new gear and rim. I will ...
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42 views

Why does my Shimano Nexus 8i need readjustment after every gear shift?

Since a month or two, almost every time I change gear my Shimano Nexus 8i becomes "unadjusted". I have readjusted it dozens of time but the problem persists. The gear is really easy to ...
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968 views

Can my belt drive frame be converted to a derailleur setup?

I want to know whether my frame is compatible with any kind of derailleur hanger, as I want to install standard gears. Due to my Nexus 8 speed hub being really quite uncomfortable and faulty since ...
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1answer
185 views

carbon gates belt drive . need to have lower gears to get up steeper hills. best options

I'm planning to go on a long cycle this year and that last 20k is up a steep incline. I noticed i had to walk up the inclines that were steep and i thought i would have got a lot further if I had one ...
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133 views

Alternative to 5-speed twist shifter for Shimano Nexus 5-speed IGH?

I'm going to buy a SG-C7000-5D / SG-C7050-5D and don't want to use the twist shifter. Unfortunately there aren't many 5-speed flat bar shifters around theses days. I've searched for alfine shifters, ...
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How to maintain a Shimano Nexus gear hub?

I have a bicycle with Shimano hub gears (Nexus 7 speed). I would like to know what type of maintenance it needs, besides the normal tuning. I believe it needs some greasing, but I have no idea how to ...
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159 views

Different vibrating tone on a belt drive with a Shimano Alfine hub

I have recently bought a new Cube EXC Travel bicycle with a Gates carbon drive. This bicycle is equipped with a Shimano Alfie 8 speed internally geared hub. The bicycle is new and it seems that the ...
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1answer
194 views

Impossible to disassemble a Sturmey Archer 3 speed

I have a relatively recent Sturmey Archer IGH 3 speed (CS-RK3) that has a broken part in it (HSA119 Gear Ring Pawl to be precise). Unfortunately, I am unable to unscrew the HSA824 F30 Ball Ring to ...
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What's the verdicts on hub-less circle bicycle wheels? Sturdy and “maintenance-free”?

You've probably seen these weird hub-less bicycles, the Reevo and the Cyclotron; while they "look cool" I wonder if anyone has long term maintenance experience on these. Considering that ...
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923 views

Shimano Nexus 8 internal hub skip/clacking noise when under torque

Hello fellow cycling enthusiasts. Intro I have bought, just 2 months ago, a new Cube Hyde Pro 2020 bicycle with belt drive (Gates, rear cassette out of metal, CDC with 22 teeth) Shimano Nexus 8 ...
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187 views

which motor is used to change gears in automatic gear shifting cycle now-a-days?

I am doing a project on automatic gear shifting. I need to choose which motor will be used to change the gear. I have found a previous question on this topic. An answer mentioned: If you used a ...
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1answer
828 views

Shimano Nexus 8 speed gear hubs: Difference between SG-C6000-8D and SG-C6001-8D?

I'd like to build a wheel with an eight-speed Shimano Nexus gear hub with disk brakes. Does someone know the difference between the SG-C6000-8D and the SG-C6001-8D? For both, Sheldon Brown says "...
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Is it viable to use a Pinion gearbox system / internal gear hub / CVT gears for a road bike?

Just a thought I had. What would be the top speed if I ever sprinted using one of these?
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280 views

Internal friction in new Alfine 11 S7001-11

I just bought a new rear wheel with an Alfine S7001-11 internal-gear hub. Before installing it, I realized that it apparently has heavy internal friction. When the wheel is set in motion, it comes to ...
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Which direction of dropout should I order for small parts kit for SHIMANO ALFINE internal hub gears

The bike I have is Raleigh Motus ebike 2018. I have ordered a SHIMANO ALFINE SG-S7001-8 internal gear hub to replace the stock derailleurs there. I need to order a small parts set SM-S7000-8. It comes ...
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1answer
536 views

Why can't I adjust my Shimano Nexus 8 gear?

I have an three year old Electra Townie 8i with the Shimano Nexus Inter 8 hub gear that needs to be adjusted. I followed the guide in this clip and it was easy enough. ...
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2answers
397 views

Shimano Nexus with shift levers

Shimano Nexus usually comes with a twist shifts. Is it possible to also use shift levers with Nexus? Which ones? More concretely, Shimano Nexus C6000 Revoshift (8s) (hub) and Shimano Alfine 7000 (8s) ...
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1answer
446 views

Diagnosing hub wobble (Shimano Nexus)

I have a Babboe City cargo bike with a Shimano Nexus 7 rear hub. Just coming into home on my last ride there was a bit of noise from the drivetrain and, on closer inspection, some other symptoms. The ...
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321 views

Longtail cargo bikes - why no internal-gear hubs?

I really like the idea of ("compact") longtail cargo bikes, i.e. bikes with a regular frame shape but with an extra-large and sturdy rack for transporting medium-sized loads and persons/kids. ...
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2answers
505 views

Are there penny-farthings with an internally geared hub?

Has someone built a penny-farthing (high-wheel/ordinal) with a gearbox in the hub? If not, are there obvious reasons one cannot do such a thing? (I recognize this is silly, but that never stopped ...
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1answer
96 views

Nexus 7 speed will not go into 6. and 7. gear

Hope someone can help😎 I have an elder Nexus 7 speed internal gear, which will not shift to 6. and 7. gear but go backwards. Instead of getting the 6. and 7. gear, I get 4. or 3. gear. The ...
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1answer
296 views

Does a Tern Cargo Rack fit on a Bike Friday NWT (whilst accomodating Ortlieb Backroller Classic Panniers)?

I was wondering, whether a Tern Cargo Rack fits on a Bike Friday NWT with a Sram Dual Drive 27 whilst accommodating Ortlieb Backroller Classic Panniers. The problem with rear racks, the Sram Dual ...
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3answers
280 views

Smaller chainring on the right side of a bigger one possible?

I recently converted my bicycle from a derailleur setup to an internally geared hub. During the conversion, I also replaced the previous crankset (with three chainrings) by a crankset having a single ...
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1answer
197 views

Back wheel jumping out of rear dropout with child transporter

Some days ago, I was riding my bike towing a child transporter. I was going steep uphill and put quite some force on the pedal. Suddenly, I heard a loud snapping sound and the back wheel was blocked. ...
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2answers
489 views

How much energy loss should there be in an internal hub 8-speed?

I've recently acquired a Specialized Globe Haul 2, which was stored in a shed in Arkansas for 10 years and never ridden. It has the original Shimano Alfine 8 speed internal hub. I replaced the tires ...
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1answer
226 views

Need guidance on selecting proper Gates belt drive components for my belt-ready frame

I have a very cheap, locally made bike with a belt drive installed on it (the frame is belt-ready). One more thing to note is that the bike is equipped with SG-3C41 IGH from Shimano. The problem is ...
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4answers
830 views

Use Brompton BWR 3-speed hub to create a full 700c wheel?

I have been looking at getting an internal gear hub wheel for my commuter. I currently ride a fixie and I find myself wanting a lower gear at stop lights and a higher gear in straight aways. Basically ...
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4answers
2k views

Commuter bike for better performance: less weight, or internal gear-hub?

Background I commute daily to work, the ride is about 10 km each way, across the city. The path is mostly streets with intersections, and a few long cycling lanes. Some hills here and there: Strava ...
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2answers
824 views

Bridgestone Albelt

For reasons that have nothing to do with bicycles I retired in the Philippines. I needed transportation and due to traffic density and poor infrastructure a bicycle made the most sense. It's a poor ...
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1answer
312 views

SRAM i3 coaster brake only activating after multiple turns backwards

My son's bike has a SRAM i3 internal gear + coaster brake hub. It has recently started sometimes only activating the coaster brake after backpedalling a good one or two full revolutions. When in this ...
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1answer
481 views

Opening a Shimano Alfine 8 hub (large dust cover)

I’m dismantling my Shimano Alfine 8 hub to service the internals. I’m at the stage in the photograph but can’t turn the large black plastic dust cover, with <-tighten loosen-> on it. The hub has ...
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2answers
109 views

What's wrong with my shifter?

This is a Nexus 7 spd hub gear twist shifter integrated in the brake lever. I had to undo the gear cable to get my rear wheel out. I therefore turned the bicycle upside down (some say that this alone ...
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1answer
237 views

What are the differences between new Nexus 7 speed hub (SG-C3001-7), versus old (SG-C3000-7)?

From the outside shells seems to be different, but are there more important changes inside that influence durability or efficiency?
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1answer
121 views

What kind of fork end is this?

I am looking for a new city/urban bike and thought that a gear hub would be a nice addition (before this I was exclusively using derailleur gears). To get started I was reading the wiki page on fork ...
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3answers
554 views

What is the maximum input torque on Sturmey-Archer internally geared hubs?

What is the maximum input torque that can be sustained by sturmey archers internally geared hubs. The website is surprisingly short on info about this. I'm specifically interested in the hybrid ...
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1answer
108 views

Wear on an IGH by pre-selecting gear under power

I have a bike with an 11 speed alfine IGH in the rear wheel. It works fine, and I am comfortable riding it. When accelerating hard or sprinting for some reason, I've noticed its possible to change ...
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1answer
176 views

Can I install/convert a Giant Quick-e+ 2019 to use an Alfine 11 speed IGH?

I have a Giant Quick-e+ 2019 and would like to install either a Alfine 11 speed di2 IGH. My first question is, is it compatible? I've been looking at the measurements and it seems all ok. But when I ...
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2answers
450 views

Replace Nexus 3 with rollerbrake with Alfine 11

I have a cargo bike equipped with a Nexus 3 hub shifter and related roller brake. Since where I live is pretty hilly, I'd like to replace it with a shifter with a big range and little gap between the ...
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What are the differences between the Alfine 8 and the Nexus 8?

I'm shopping for a new bike and I have a choice between one with the Alfine 8 and the other with the Nexus 8. They seem to be pretty similar, but from what I could gather from forums here and there, ...
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2answers
1k views

Lubricating an alfine 11 IGH hub

I have an almost-new New-Old-Stock Shimano Alfine11 internal geared hub in the rear wheel of my bike. Its on 300 km now, with a first oil change due at 1000 km and then yearly or every 5000 km after ...
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2answers
2k views

Anti-rotation washers (non-turn) washers in non-parallel dropouts?

I have a Shimano Alfine 11 Interally-geared hub and am fitting it to an "M5 559 shockproof" recumbent. The wheel is built and true and runs nicely. However I have a problem with the anti-rotation ...
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5answers
599 views

New bicycle for commuting

I'm just retiring my old roadie and looking to buy a new bike, and am torn on what kind to buy. I cycle 34 miles per day on my commute, down roads and canal towpaths (which are bumpy and have on ...
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1answer
425 views

Wheel keeps going out of alignment and loosening the chain

I have an electric bike with internal hub gears on the rear wheel, so no derailleur. This means that for the chain to stay tight, the wheel axle needs to be dragged back into its seating before it is ...
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1answer
301 views

Adjust Nuvinci nfinity gears

After the latest service, my manual Nuvinci nfinity is set to higher gear than before and I want it lowered again. Surfing the web I find nothing like "turn this knob to adjust gear". The closest I ...