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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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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
88 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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0answers
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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
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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
81 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
50 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
52 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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1answer
70 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
85 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
83 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
54 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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2answers
2k views

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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0answers
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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
335 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
454 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
73 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
77 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 ...
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1answer
488 views

Can I replace my Shimano Nexus 7 with a Nexus 8 hub?

My 2 year old bike has a (damaged) Nexus 7 IGH, it started running heavy and I can't find out why. Rather than getting it fixed I'm considering replacing it with a Nexus 8 hub, as they supposedly of ...
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1answer
66 views

Does only Rohloff manufacture the sprocket for their Speedhub 14?

Are there any manufacturers other than Rohloff who make the sprocket for the Rohloff Speedhub 14? Is the sprocket Rohloff specific or is it a standard / general / everyday part?
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2answers
108 views

Would a IGH drive train last longer than a derailleur drive train?

Would a single sprocket + 8 speed chain + single chain wheel used in combination with a IGH last longer than a 10 speed cassette + 10 speed chain + 3x chain wheels? Image I have 2 bicycles. Bike 1 ...
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1answer
58 views

Does a torque anchor prevent an IGH (Rohloff Speedhub 14) from being pulled forwards and crooked whilst riding?

Assume a bicycle with horizontal fork ends (like the rear facing horizontal fork ends on a Surly Troll), with an IGH (Rohloff Speedhub 14) and no chain tensioner. On a steep uphill in the easiest ...
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3answers
384 views

How to install a Rohloff Speedhub on a Surly Troll with rear facing horizontal fork ends

I have a Surly Troll with rear facing horizontal fork ends. Is there a recommended way of installing a Rohloff Speedhub 14 on the Surly Troll? These answers mention tugnuts and washers, but perhaps ...
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3answers
436 views

How to compare an IGH (Shimano Alfine 11) with a 10 speed cassette and 3x chainwheel?

I'm try to compare the gear ratio of a IGH (Shimano Alfine 11) with a 10 speed cassette + 3 chainring setup. I read Sheldon Brown's gain ratio definition. I went to Sheldon Brown's gear ...
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3answers
140 views

Will my rear wheel with an internally-geared hub shift forward when pedalling steep uphill?

(I'm not a bicycle mechanic. Please excuse the incorrect terminology.) I would like to have an internal hub gear (Shimano Alfine 11) installed on my bicycle. My bicycle has a horizontal rearward-...
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1answer
221 views

Shimano 3 Speed Internal Hub Gear on child bike popping chain on 3rd speed

my daughter got a S'Cool bike that's a 3 speed internal hub gear system. It works fine in the first two speeds but when it goes to third gear it makes a bit of noise - like a small "whizzing" sound ...
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1answer
153 views

Parking a 3-speed internal hub in 2nd gear permanently

I recently bought a gently used, not super well maintained Columbia 3-speed bike from some time in the 80s. It has an internal hub - the dreaded Shimano 333. My eventual plan is probably to convert ...
2
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2answers
311 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
397 views

Are torpedo 3 gear shift cables a standard or are there different sizes?

I want to replace the cable of a bike with an old sachs torpedo 3 gears internal hub and I'm not sure what do I have to buy. In this related question the answer is that there are some differences ...
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1answer
370 views

Shimano Nexus 7 gear hub slips

I need help on adjusting my Nexus 7 Shimano rear hub. Today I tried to install a Shimano 7 gear shifter to change the gears on a Nexus 7 Shimano rear hub. Before installing, I lined up the red lines ...
2
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1answer
167 views

pedaling gap after shifting internal hub

I have a 3-speed internal gear hub. After switching between gears no pedaling is possible until I rotate the chainring about a half turn. Is it normal or did something go out of adjustment?
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1answer
3k views

How do I tighten the loose chain given an enclosed Nexus rear hub?

How do I tighten the loose chain on my son's bicycle given an enclosed Nexus rear hub (3 gears but no visible external cogs) ?
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1answer
533 views

Can I lace a 36 hole hub to 48 hole rim?

I'm trying to install a 3 speed, 36 spoke hub into my 48 spoke rim. I want to try and retain the larger wheel if possible instead of downsizing to a 29" tire. I'm getting mixed information that it ...
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4answers
7k views

How to prevent Alfine 8 from “skipping”/"slipping under load?

I bought a nice belt-drive bike with an Alfine 8 hub. While I love everything about the belt, the Alfine hub gives me grief: under high(er) torque - think fast acceleration from a stop at a light - it ...
5
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1answer
150 views

Alternative to tuning automatic hub?

I am contemplating purchasing an automatic gear hub, namely the SRAM Automatix. One of the criticisms leveled at this hub is that it shifts up too soon. The default settings can however be adjusted if ...
2
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1answer
273 views

Electronic shifting for planetary gear hub

Gear hubs are nice, but after getting a Rohloff I realized that shifting is extremely difficult and requires lots of effort. So this got me thinking: do electronic shifting systems exist for gear hubs?...
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3answers
837 views

What kind of chain to buy for internal gears?

What kind of chain should I buy if my gears are internal in a drum? I have seven gears but should I buy a one speed chain? What would happen if I would use a seven speed chain?
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1answer
172 views

Restoring BSA bike - replacing rear wheel and freewheel

I'm trying to restore an old BSA bike. I want to salvage a Sebco freewheel from a very messed up wheel. I want to know what do I need to remove it. Am a newbie home mechanic so I know nothing. Since ...
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1answer
454 views

Shimano Nexus SG C6000-8R and SL-S503

I have a very specific compatibility issue : I just bought a Shimano Nexus 8 "SG C6000-8R" rear hub and would like to know if I can use it with the Shimano "SL-S503" gear trigger. The reference page, ...
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2answers
220 views

Oil or grease leaking, I think, from hub

Black oil or grease is leaking from my brand new src3 hub. Is this normal? I thought internal geared hubs like this are supposed to be sealed. This the bottom of the hub with the bike upside down. I ...
3
votes
1answer
212 views

Convert Sturmey-Archer AW hub to AWC

I have a 1972 Schwinn Breeze with a Sturmey Archer AW 3-speed hub (no coaster brake). I would like to replace the internals of the AW hub with the internals of an AWC hub (which has a coaster brake). ...
2
votes
1answer
362 views

Loud cracking noise after installing new chain

I did some work on my Rohloff bike today, installing a new chain & chainring and reversing the sprocket. When trying out the bike afterwards, something in the drive train was making a loud ...
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vote
2answers
776 views

Chain keeps slipping on in-hub geared bike. Stretched chain?

I have an Avanti Discovery 8, which is a mid-range hybrid bike with Shimano in-hub gears. I ride about 20klms a day on bike paths so whilst it gets a work out, it never really gets much bad abuse. I'...
4
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1answer
618 views

How to grease an internal hub gear?

Are there any online tutorials or can someone explain how to grease an internal hub gear? I did a bit of searching but I only find people completely desassembling their hub gears. I am looking for a ...
4
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1answer
504 views

What is the widest range IGH available? (and how does it compare to derailleurs)

What is the widest range (in gear-inch ratio) available on an Internal Gear Hub (IGH) without the use of a supplemental derailleur or internally geared crank (aka mountain drive)? And how does this ...
2
votes
1answer
381 views

Installing an IGH in a Trek District SSB

I own a Trek District SSB, which uses Trek's proprietary belt drive system. I'd wanted a bike with an internal gear hub, but they only offered a 3-speed version as an upgrade, so I decided to buy the ...
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1answer
534 views

What does it take to damage an internally geared hub?

What behavior can easily damage an internally geared hub (Shimano Nexus or Alfine for example)? can one jump off high (say 50cm) curbs? can it be damaged by shifting gears under too much torque? ...
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2answers
641 views

Internally-geared hub and chain case: running away from maintenance chores and grit damage

First off, the context of my question is 80% urban commuting and 20% weekend road trips of up to 70km, with a bit of casual trail riding mixed in. I ride my bicycle for transport and I value minimal ...
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3answers
6k views

How to correctly adjust 3 speed shifter

I have a second hand chapelli 3 speed bike. Everything was fine until I got a flat tire on my back wheel. I was able to figure out how to get the back wheel off (after a bit of Googling), by ...
2
votes
1answer
141 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 ...
4
votes
2answers
1k views

Feasibility of coupling internal hub gear and derailleur

Price considerations apart, would it make sense to install together an internal hub gear and a derailleur? I was thinking of it as a viable way to avoid having the front gears.