Questions tagged [nexus]

Shimano Nexus is a line of components designed around internally-geared hubs.

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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, ...
kokito's user avatar
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8 votes
2 answers
7k views

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

Intro Just 2 months ago, I bought a new Cube Hyde Pro 2020 bicycle with belt drive (Gates, rear cassette out of metal, CDC with 22 teeth) Shimano Nexus 8 internal hub (model SG-C6001-8D). I mostly ...
user2523745's user avatar
7 votes
3 answers
2k views

Switching from a dérailleur to a gear hub

I'm upgrading an old bike with a five speed dérailleur system which I'm trying to convert to use a three speed gearhub from Shimano. I have assembled the wheel, I know how to set up the gearhub itself,...
andrewsh's user avatar
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7 votes
1 answer
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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, ...
Tomblarom's user avatar
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6 votes
2 answers
2k views

Nexus shifter with Alfine hub

Is it ok to use a Nexus 8 speed grip shifter with an Alfine 8 speed hub? The Alfine shifters seem to be all trigger shifters is that correct?
Gurnard's user avatar
  • 297
6 votes
2 answers
6k views

Shimano Nexus 3 clicking free-wheel-mechanism-like noise

I have assembled a bike with new Shimano Nexus 3 (SG-3C41) internally geared hub. In the lowest gear the hub is silent. However in the middle and highest gear it makes a clicking noise similar to free-...
dhill's user avatar
  • 497
6 votes
2 answers
241 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 ...
AKmatiAK's user avatar
6 votes
1 answer
4k views

Shimano Nexus 3 (SG-3C41) 2 and 3 gear problem - Ring Gear Unit Repair

I have this internal gear hub and i try to fix it. 1st gear is ok. On 2nd and 3rd gear, especially when I run faster, the hub is not engaging properly, missing engagement sometimes. It is not problem ...
krzyski's user avatar
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5 votes
2 answers
589 views

Yellow anti-rotation washer, Shimano Nexus 3 speed with trailer?

Should I keep or remove the yellow anti-rotation washer when installing a child trailer to my e-bike (EcoRide with Shimano Nexus 3 speed)? The trailer installs through the wheel axle (see attached img....
Ola's user avatar
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5 votes
1 answer
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Shimano Nexus 3 — what anti-rotation washer to use?

As I described in my previous question, I attempted a gradual conversion from a dérailleur to a Shimano Nexus 3 gear hub. I have installed the hub, keeping the dérailleur's pulley for now, with ...
andrewsh's user avatar
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5 votes
1 answer
412 views

Nexus 7 Hub: Is it normal to have resistance when back pedaling?

I have a Nexus 7 speed hub with 19t cog and a triple chainring. Experiment: Using a rear derailleur to take up chain tension; the hub shifts fine in all gears and the the triple shifts fine. It all ...
Rod's user avatar
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4 votes
1 answer
174 views

Shimano nexus 8 internal gear shift cable holder is broken. What can I do?

I have a Cube Hyde Pro equipped with a Shimano Nexus 8. The cable holding place is broken. As you can see in the image below: As a temporary solution I glued it with a cyanoacrylate glue but it is not ...
moddayjob's user avatar
  • 163
4 votes
1 answer
435 views

Could i break Shimano Nexus 7 with no cable attached?

Is it possible to ride (pedal) on bike with Shimano Nexus 7 with no cable attached? Is it possible to push the bike without pedaling, when cable is unattached, or setting of shifter is not correct? I ...
Robert Salát's user avatar
4 votes
4 answers
3k views

Shifters compatible with: SG-3D55 (Shimano Nexus 3 speed - disk brake - internal gear hub)

I am planning to buy the SG-3D55 internal gear hub. According to this forum post, the SL-3S35 is compatible. But what about the other 3 speed nexus shifters? I am finding it hard to find any ...
Chendy's user avatar
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4 votes
1 answer
388 views

Is Nexus 7 supposed to be silent?

I almost bought an e-bike with a belt drive and a Nexus 7 hub today (link to bike). It's my first experience with gear hubs, I've chosen it (over derailleur) for the sake of easy switching in the city ...
texnic's user avatar
  • 163
4 votes
1 answer
2k views

Replacing broken nexus 7 gear hub with second hand one

My previous nexus 7 gear hub completely broke down and i decided to replace it with a second hand wheel. I took my bike apart, and used the sprocket gear of my old wheel on the new one. After that i ...
Kasper's user avatar
  • 163
4 votes
2 answers
4k views

Coaster brake suddenly not working (Nexus 3-speed hub)

My girlfriend took her bike out for a spin and noticed the coaster brake wasn't working at all. Instead of braking it just back pedals, not like a free hub, but if you back pedal the bike actually ...
Suedish's user avatar
  • 141
3 votes
2 answers
3k views

Installing a rear derailleur on a bike with a nexus 8 internal hub

I have a Giant Escape N8. Unfortunately the nexus 8 hub is damaged, the wheel is also damaged, so I need to replace the whole wheel and the nexus 8. The chain also needs to be replaced, and I suspect ...
simao's user avatar
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3 votes
2 answers
2k 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) ...
Ecir Hana's user avatar
  • 281
3 votes
2 answers
3k views

Combine Nexus 3 Hub with Torpedo 3 gear shifter?

I have upgraded my bike with a Nexus 3 hub, but the corresponding gear shifter takes away too much handle space on my crooked handle bar (I have to grab the gear shifter during my rides). Hence, I'd ...
MaHo's user avatar
  • 133
3 votes
2 answers
280 views

What speed is my Shimano Nexus 8 Hub in?

I made a mistake when changing a flat. I didn't have it in 4th speed. When I was changing the flat I shifted it for more give on the shifter cable >_< . Now my shifter says 4 and I don't known what ...
TravisKs's user avatar
  • 133
3 votes
1 answer
2k views

The sprocket wheel on my Shimano Nexus 7(SG-R46) no longer rotates freely when free-wheeling my bike

The hub has just been serviced at a bike shop. With the bike on a work-stand, the rear wheel rotates when I turn the pedals backwards. There is a lot of resistance if I hold the wheel and turn the ...
Rollercone's user avatar
2 votes
4 answers
1k 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 ...
aguntuk's user avatar
  • 21
2 votes
2 answers
177 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 ...
Romanda de Gore's user avatar
2 votes
1 answer
1k views

Can't remove SHIMANO Nexus FC-C6000 Crankset

I'm stuck trying to remove my SHIMANO Nexus FC-C6000 Crank from the SHIMANO BB-UN55 bottom bracket. I've removed the bolts fine but can't get the cranks apart. Any suggestions?
Mark Robinson's user avatar
2 votes
4 answers
395 views

Steel rims responsible for slicing tubes?

I have an old Giant dutch bike and it has steel rims. Since I'm a big boy I felt that the 60PSI on the tyres is not enough and pumped my tyres to the maximum of 85PSI which is what my Schwalbe ...
Nico's user avatar
  • 352
2 votes
1 answer
275 views

Replacement for Shimano Nexus 7 outer casing holder

I swapped my Nexus 7 sprocket with a new and the bracket apparently has a much larger diameter, so my cable is not stopped. The drawings that came along showed that I need an "outer casing holder" ...
Christian Madsen's user avatar
2 votes
1 answer
686 views

Why is my Nexus 7 "grinding" when coasting?

I have a brand new Nexus 7-speed IGH which is making a horrible grinding noise when coasting. It also "sticks" a little when backpedaling (i.e. doesn't immediately freewheel; I don't know ...
You's user avatar
  • 121
2 votes
2 answers
1k 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 ...
JoeKahno's user avatar
2 votes
1 answer
663 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?
Davorin Ruševljan's user avatar
2 votes
1 answer
3k 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 ...
Pelle's user avatar
  • 133
2 votes
1 answer
1k views

Wobbling on Shimano Nexus 8

My rear wheel has a Shimano nexus 8 internal gear shift. i noticed some wobbling on the axis recently. that means there is a little bit of play when i try to twist the axis sideways respective to the ...
clamp's user avatar
  • 365
2 votes
2 answers
765 views

How to adjust/tighten the chain on my Shimano Nexus 8i hub?

I have an Electra Townie 8i with Shimano Nexus components. Every time I remove the rear wheel it is a major PITA to adjust the chain tension when putting back the wheel again. Is there some smart way ...
d-b's user avatar
  • 341
2 votes
1 answer
344 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 ...
Lohrider's user avatar
2 votes
0 answers
65 views

Rear hub is sticky and clacking when backpadeling

I'm having trouble with my Nexus 8 Hub. It started to feel strange recently after a tour. I got help by someone in a free bicycle garage. We opened up the hub, gave it an oil bath and greased all the ...
alveeoyn's user avatar
2 votes
0 answers
211 views

Does (or has in the past) an adaptor existed to mount a disc rotor to a Shimano Rollerbrake type hub?

I have acquired a Nexus 8speed rear hub. It’s a good one and I’d love to use it. However, it has been set up to use rim brakes and under the plastic cover is the interface to mount a rollerbrake. Does ...
Noise's user avatar
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2 votes
0 answers
3k views

Shimano Nexus 3 coaster brake screeching sound

When I brake hard/er with my Shimano Nexus 3 coaster brake it makes a loud screeching sound. Like really loud, everybody on the street would hear it and turn around. Since I know it's all internal all ...
Nico's user avatar
  • 352
1 vote
1 answer
580 views

Is it possible to upgrade Schwinn Willy to use an internal gear hub?

I have a Schwinn Willy (single speed). My commute is 6 miles each way on flat road with a bike section. There's only one 'hilly' section. A single speed bike is too slow. Everyone keeps passing me. I ...
McTrafik's user avatar
  • 113
1 vote
1 answer
4k 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 "...
OverTheRainbow's user avatar
1 vote
2 answers
961 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 ...
penguin86's user avatar
1 vote
2 answers
2k views

Can an Alfine 11 replace a Nexus 8?

An online store currently offers the Dahon Curve XL with a Shimano Nexus 8 IGH (The Dahon site shows the Nexus 7 model). I'd like to replace it with an Alfine 11. Does someone know if the OLD (Over ...
OverTheRainbow's user avatar
1 vote
2 answers
853 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 ...
awe 1212's user avatar
1 vote
1 answer
2k 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. ...
d-b's user avatar
  • 341
1 vote
2 answers
6k views

Degreaser and oil recommendations for Nexus 8

Morning! i read a few articles about how to clean and lube the nexus 8, but i didnt found a good degreaser here i can leave my internal hub inside for a hour at least to breakdown the old grease, ...
Pypoka's user avatar
  • 11
1 vote
1 answer
688 views

Gear step sizes between Shimano Nexus 8 and Alfine 8 compatible

I recently replaced my broken nexus 8 with a new alfine 8. i thought that they are compatible in regards to the shifter and the step sizes between the gears. but i notice now on the alfine that i ...
clamp's user avatar
  • 365
1 vote
1 answer
1k views

Grip for Shimano Nexus hub gear shifter

Would you recommend for a good grip from Shimano Nexus shifter? I hardly find a good option. Ergon grips seem to be the best choice.
Hubidubi's user avatar
  • 233
1 vote
1 answer
878 views

Shimano nexus 3-speed hub gear, yellow dot does not move when adjusting

I have a bike with a Nexus 3 hub gear. Yesterday the shifting got out of whack, when set to gear 2, it was actually in gear 1, gear 3 was 2, and so on. I looked up how to adjust it, and found that I ...
GrixM's user avatar
  • 137
1 vote
1 answer
405 views

Broken Shimano Nexus 8 Gear Hub

My HUb is a Nexus SG-8R31, 7 years and 3500 miles (5600Km) old. It has just developed a loud "clicking" noise when going forward, This happens both on and off the bike. It sounds like a broken ball ...
Brian North's user avatar
1 vote
1 answer
4k views

Shimano Nexus 3 stuck on lowest gear

I have a bike with Shimano Nexus 3 gear, and it's stuck on lowest gear. However, if I move shift pin that changes gears it changes the gears. So Nexus itself seems to be working, but the pin is not ...
Avaruusmuikku's user avatar
1 vote
1 answer
197 views

Shifter/IGH stuck on 3rd gear on Shimano Nexus 7-speed

There are many similar questions on SE, but none I think are the same. This morning, commuting on my bike with Shimano Nexus 7, I suddenly realised I can't shift anymore. I have a grip shifter, it ...
Bennet's user avatar
  • 245