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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9
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4answers
3k views

How am I able to simulate gears on my single speed?

Sometime ago, I bought a cheap bike from eBay for my daily commutes which turned out to be a single-speed bike. It works fine but I am curious as to how I am able to have a shifter that simulates gear ...
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1answer
33 views

Blended IGH + Detailleur drivetrain

Is it possible, for instance, to run a Shimano Nexus IGH with front derailleurs, to have even greater range of gearing, while gaining the advantages of IGH (low maintenance, stationary shifting)?
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2answers
70 views

Removing Nexus 8-speed IGH from hub shell

I'm trying to remove my Nexus SG-C6001-8D from its hub shell to grease it. Sadly Shimano's documentation doesn't cover the process of extracting the internals from the hub shell. The info I can find ...
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1answer
40 views

Shimano Nexus Inter8 hard to twist grip shift in higher gears

After my local bike shop did a tune-up on my HaiBike Radius, it has become very hard to twist my grip shift into higher gears when I am riding. The grips shift twists easily when I shift down or when ...
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3answers
535 views

Can a Pinion bike work with an indoor direct drive trainer?

I have a Priority 600 bike with a pinion c.12 gearbox and a Gates belt drive, and I'm currently contemplating winter training plans. Will this work with a Tacx NEO 2T trainer, provided that I buy a ...
11
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1answer
1k views

Are internally-geared hubs UCI legal?

Are internally-geared hubs UCI legal? I am assuming no one would ever use one for a race since durability and reliability matter less in a pro race than weight and efficiency, but I am also assuming ...
3
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3answers
519 views

Internal hub shifters vs derailleur shifters indexing?

What is the indexing like on the popular internally-geared hubs (shimano nexus and sram i-motion)? Can one use a 3-speed front shimano derailleur shifter (e.g. acera) for a 3-speed shimano nexus hub? ...
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2answers
123 views

Why does Shimano Nexus 3 internal gear feel differnt on 2nd gear with and without the pin and gear set up

I have a Windsor brand bike that has a Shimano Nexus 3 internal gear hub. Initially when I purchased the bike used it did not have the shifter. The chainring is 44 teeth and the cog is 22. It felt ...
3
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1answer
266 views

Clicking sound when pedalling hard

EDIT: Dropped it off at my local bike shop and the mechanic had the following to say about it: Bottom bracket very low quality, also worn bearings. Due to open frame type was a lot of dirt inside ...
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2answers
86 views

Possible Maximum Gear Ranges of Each (3?) Possible Triple-Geared Drivetrain

I'm looking for the absolute maximum possible gear ranges from the known/possible triple-geared drivetrains, such as the strategy noted on TrikeTech.com. This involves pairing each of the three known ...
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0answers
79 views

Other Dual Drive hubs than Sturmey Archer or SRAM?

I'm looking for a dual drive type hub. At least that's what SRAM calls them. Hubs that are both internally and externally geared. SRAM and Sturmey Archer are the only manufactures of this class of ...
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2answers
149 views

Why are IGH minimum gears expressed as ratios not contigent on wheel size?

I've wondered about this before, but I'm doing a Brompton Rohloff conversion for someone and the moment has finally arrived where it's not just a theoretical issue: Shimano and Rohloff both recommend ...
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2answers
105 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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2answers
529 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 ...
4
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2answers
123 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 ...
2
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2answers
129 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 ...
5
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1answer
157 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 ...
6
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2answers
93 views

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 ...
2
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4answers
241 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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0answers
44 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 ...
4
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4answers
1k 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 ...
2
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1answer
309 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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0answers
237 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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2answers
3k views

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 ...
5
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2answers
208 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 ...
6
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1answer
256 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 ...
13
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3answers
4k views

What's the verdict 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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2answers
2k 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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0answers
191 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
1k 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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3answers
201 views

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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2answers
371 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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0answers
62 views

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 ...
3
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1answer
651 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. ...
3
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2answers
584 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
567 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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2answers
404 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. ...
7
votes
2answers
628 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 ...
1
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1answer
109 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 ...
3
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1answer
354 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 ...
1
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3answers
332 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 ...
3
votes
1answer
216 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. ...
2
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2answers
572 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 ...
1
vote
1answer
274 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 ...
1
vote
5answers
976 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 ...
2
votes
4answers
3k 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 ...
2
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2answers
920 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 ...
4
votes
1answer
367 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 ...
4
votes
1answer
543 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 ...
2
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2answers
111 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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