Questions tagged [shimano]

Shimano brand bicycle components. (No need to use if Shimano is an incidental part of the question.)

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Moving from Shimano 9- to Shimano 10- speed

I'm thinking of changing the 9-speed Tiagra rear mech on one of my (road) bikes to something, still Shimano, but 10-speed. The obvious replacements I'll need are cassette, right-shifter and chain. But ...
PeteH's user avatar
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24 votes
7 answers
63k views

Does this chainring need to be replaced?

Here is a closeup of my triple: All three rings are Shimano Ultegra and have never been changed. They probably have at least 12000+ km on them. I've been pretty good about changing the chain ...
darkcanuck's user avatar
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13 votes
2 answers
67k views

Difference between Road/Mountain Hollowtech II Bottom Brackets?

Shimano sells Hollowtech II bottom brackets which are labeled for road and mountain bikes explicitly. I had no trouble fitting a Shimano Deore BB52 Hollowtech II Bottom Bracket into my road bike and ...
Christian Lindig's user avatar
3 votes
0 answers
8k views

Shimano STX rear shifter, broken spring

I have to repair a Shimano STX shifter 7 speed (from a Raleigh MT200 bike from 1995). It has a broken spring, and I am almost sure that is the only thing to be repaired. It is similar to that ...
sancho.s ReinstateMonicaCellio's user avatar
8 votes
4 answers
38k views

Can you use a 8 speed Shimano shifter with a 7 speed cassette?

I want to use an 8-speed shifter with a 7-speed cassette. I saw this question, but I am unsure if this would work, since I believe the spacing is the same between a 7- and 8-speed, but the length is ...
Carson Reinke's user avatar
7 votes
4 answers
73k views

Special hub requirements for an 11-speed group

In a question earlier today (Changing cassette from 8 to 10 or 11 to meet the Shimano 105 5800 groupset) the Op asserts that they would need to change their hub, if they wanted to go from a 10- to 11- ...
PeteH's user avatar
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7 votes
1 answer
10k views

Replace Ultegra 6600 STI lever

I need to replace my Ultegra 6600 right hand shifter as the ratcheting system is gone. The rest of the groupset is all the same 6600 series. I am having a hard time sourcing just a right hand side ...
Ifor's user avatar
  • 278
5 votes
3 answers
1k views

Shifter cable ruptured near the inner end in ST-R7020 - usual defect?

Is is a shifter cable ruptured/torn near the inner end a usual defect with the ST-R7020 shifter or alike? Some words on the symptoms when this defect happened (might help others with diagnoses): ...
try-catch-finally's user avatar
17 votes
2 answers
41k views

I'm changing from 8-speed to 10-speed will I need to replace my rear Hub?

I've dug an old road bike out of the garage for the winter and need to upgrade the drive-train, I'm happy about most of what I need but but I'm not sure about the rear hub (an old Shimano Ultegra).. ....
Dog Ears's user avatar
  • 609
15 votes
3 answers
69k views

How can you identify if a Shimano rear derailleur is medium or long cage?

I have a 2013 Shimano XT rear derailleur. It is part of a 2x10 drivetrain. How can I find out if it is a medium or a long cage one? The picture below shows the derailleur.
user1049697's user avatar
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5 votes
2 answers
1k views

Rear wheel cassette, hub and speed set compatibility question

My bike's rear wheel was recently stolen so I am looking to replace it with a second hand one now. However I don't have much experience/knowledge about speed gear and cassette compatibility. My bike ...
Sina's user avatar
  • 217
5 votes
1 answer
4k views

Shimano RD M5120 and 10 / 11 speed compatibility

I thought the shimano mtb 10 speed is completely separate system and isnt compatible with anything else. However now there is a 10/11 speed RD - the RD-M5120 SGS. I was wondering how does this work. ...
jednorukypilot's user avatar
4 votes
5 answers
63k views

9-speed system to 11-speed drivetrain upgrade?

I am currently upgrading my bike from a 9 speed to an 11 speed system. I am currently using shimano 105 components and will continue to use them within the new system. Current bike has a shimano 105 ...
Danny P's user avatar
  • 61
4 votes
3 answers
19k views

Threading Shimano chain, over or under lug?

I have an MTB with Shimano Deore/SLX components. I just replaced the chain. Should the chain go over the lug as I have it in the picture?
LeBlaireau's user avatar
1 vote
2 answers
739 views

Shimano Deore front derailleur occasionally sticking

I have a question about my front derailleur sticking occasionally. I've had this bike for a 1.7 years and have ridden it through 2 winters. It has only been after this last winter that my front ...
JackJack Attack's user avatar
18 votes
1 answer
1k views

How can I tell which road bike components/groupsets are better?

Shimano has new models of their groupsets every year but the lines generally keep the same names. This makes it difficult to figure out what year/version a particular bike has. Is there an easy way to ...
Joe Phillips's user avatar
  • 1,337
13 votes
1 answer
2k views

What is linkglide/cues and how do they differ from existing standards?

This question is intended to be a canonical question, meant to be referenced when appropriate. In 2021, Shimano launched two LinkGlide Deore and XT Drivetrains (shifter/derailleurs/cassettes, numbers ...
Rеnаud's user avatar
  • 20.2k
11 votes
3 answers
7k views

What kind of maintenance does a shimano dynamo hub need?

I have a shimano dynamo hub on the front of my bike. Does it need any special maintenance, or maybe it needs just a little synthetic grease once a year, like a normal front hub?
Tadeusz A. Kadłubowski's user avatar
10 votes
4 answers
8k views

Trouble getting the right cup and cone hub adjustment

I have a pair of Shimano XT wheels and recently had issues with the hub on the rear wheel requiring new cones and bearings. These were fitted carefully but I've had issues getting the right adjustment ...
Badger's user avatar
  • 203
9 votes
3 answers
15k views

Combining Shimano RS500 crankset with Stages Shimano 105 5800

I've been thinking about getting a power meter for a while now. I finally decided I would get one, but now I realise that Stages only starts at the Shimano 105 level. I currently have a Shimano RS500 ...
Wout De Rooms's user avatar
8 votes
2 answers
2k views

What is the heritage behind Shimano groupset names?

Shimano’s groupsets have some fairly unique names. Here are the names, arranged in each hierarchy from lowest to highest cost: Mountain: Tourney Altus Acera Alivio Deore SLX Deore XT XTR Road: ...
MaplePanda's user avatar
  • 15.5k
7 votes
2 answers
3k 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 ...
Criggie's user avatar
  • 124k
6 votes
2 answers
2k views

Shimano GRX 2x10 crankset compatible with mtb front derailleur + shifters?

I would like to replace my existing MTB crankset with a GRX crankset to get a bigger outer chainring (cannot find anything for my existing crankset, FC-M4100-2). Does that even work? I'm trying to ...
Ola's user avatar
  • 1,037
6 votes
3 answers
2k views

Wilier oversize bottom bracket bearing cups for Shimano crank

My bike frame is a Wilier Imperiale with Campagnolo crankset. I am changing the crank to a Shimano 6800. The bottom bracket does not fit to the Shimano one. It is old version WILIER OVERSIZE BOTTOM ...
Yang's user avatar
  • 61
6 votes
3 answers
3k views

Reinforced Shimano pin snapped before connecting chain - how to resolve?

My previous chain snapped weeks ago and only got a new one sorted. I've cut the chain to the right size, fed it through the derailleurs and onto the bike correctly. The last step was to use the ...
shicky's user avatar
  • 185
6 votes
4 answers
22k views

Are the Shimano derailleurs sold on Ali Express genuine or fake?

I am trying to buy Shimano Alivio M4000 components. When I was researching on Ali Express, I found this. This is Alivio M4000 including the front derailleur, rear derailleur, left and right Shifters ...
kartlad's user avatar
  • 393
5 votes
3 answers
27k views

What tool is needed to remove a Shimano HG-50 freewheel?

What tool is needed to remove a Shimano HG-50 freewheel from the wheel hub? It looks like a 12mm or 13mm Allen key. Will this do it or is there some detail I have missed?
Greg B's user avatar
  • 1,263
5 votes
1 answer
6k views

Replaced Shimano Bottom Bracket, now front derailleur won't shift to largest gear

OK, so in my quest to get my old Trek 7000 ZX MTB running again after a long retirement, I am having an issue with replacing the bottom bracket. The bike came with a Shimano LP25 that is marked BC 1....
unsavory's user avatar
4 votes
1 answer
7k views

Fix a wobbly Shimano freehub?

I have a brand new Shimano Ultegra WH-6800 rear wheel. The freehub has about 2mm of play in it. I can feel the play without the cassette installed by grabbing the freehub body and moving it. It moves ...
yothenberg's user avatar
4 votes
6 answers
34k views

Shimano Compatibility

I'm quite new to upgrading parts, and trying to put together a Cyclocross / Touring bike and getting quite confused about compatibility. Can I use 10 speed Tiagra Sti shifters with triple Deore 10 ...
user11127's user avatar
3 votes
1 answer
14k views

Can I replace only the smallest cog on my rear cassette?

I currently have a 12-30t rear cassette which needs replacing. While I'm at it, I really want to switch to an 11 tooth to get the extra 9% in top speed. But the problem is, even the most expensive (...
Michael's user avatar
  • 1,249
3 votes
2 answers
4k views

Installing Alfine shifter with nexus 8 hub

My nexus shifter needs replacing and I don't like the twisting type of shifters so I wanted to use a trigger one with my nexus hub. Can I use the Alfine SL-S503 with a nexus 8 internal hub? I think ...
simao's user avatar
  • 229
3 votes
3 answers
2k views

How to tighten the Hollowtech II (on R2000 Claris) cranks?

The owner's manual on my new bike (with the new Shimano Claris, not the old one with Octalink) asks me to do this: After the first 20 km tighten the crankset and also tighten the pedals in the ...
Vladimir F Героям слава's user avatar
2 votes
1 answer
435 views

Switching from MTB to road handlebars

I have a gravel bike with an MTB setup. SRAM GX rear mech, SRAM XO shifter, 1x11 system, Shimano disc brakes. How would I go about replacing my flat handlebars with road bars? Alternative 1 Get a ...
netbrain's user avatar
  • 239
2 votes
1 answer
2k views

Shimano RD-R7000 cable cut into thread?

That gap/cut in the hollow screw of the cable mount is not supposed to be there, right? If so, is this a typical defect? The hollow screw is pressed into the derailleur body and not replaceable, so ...
try-catch-finally's user avatar
1 vote
2 answers
1k views

I need to change my bike from UK to US Spec

I bought a bike from the UK. The brakes and shifters are on the opposite sides. I want to change it so the front brake is on the left and the rear is on the right, Same thing for the shifters. I ...
John's user avatar
  • 11
0 votes
2 answers
720 views

Replacing a Tiagra FD-4503 front derailleur

Note: Wrong parts were listed originally as Alivio FD-M4000-DS6. Apologies. The broken derailleur was not replaced with the crankset a few years back. I haven't found great information on how to ...
drfloob's user avatar
  • 101
24 votes
1 answer
7k views

Why is Shimano's 105 groupset called 105?

Shimano's current road lineup is Claris / Sora / Tiagra / 105 / Ultegra / Duraace 105 stands out as odd because its a number. Is there some special meaning ? Research 105 was released in 1983 as a ...
Criggie's user avatar
  • 124k
19 votes
3 answers
9k views

What exactly is the "clutch" doing on a Shimano M8100 rear derailleur?

My new Shimano 12s XT 8100 rear derailleur has the switch with on and off positions. From that I found on the web, it is a "clutch" and I must turn it off when removing the wheel. I can ...
nightrider's user avatar
  • 7,739
14 votes
1 answer
34k views

Which pulley is which on my Shimano STX RC derailleur?

I disassembled my rear derailleur to clean it; when I removed the sprockets they basically looked the same; both jet black and caked with all sorts of black grease-like-stuff. I figured they were the ...
Nick T's user avatar
  • 343
14 votes
5 answers
8k views

Why doesn't Shimano use shadow technology on road derailleurs?

Shimano has been using their 'Shadow' technology on their high-end mountain bike rear derailleurs (> Deore) for many years. In addition to the benefit described in the images below (from here), ...
JohnnyO's user avatar
  • 243
12 votes
11 answers
93k views

Shimano Steps ebike E010 and E012 errors: DIY fix possible?

My Shimano Steps-powered e-bike is frequently but irregularly giving me the errors E010 and E012. In the E6000 Series Dealer’s manual and E8000 Series User's manual I found the following: E010: A ...
bjornte's user avatar
  • 267
11 votes
2 answers
7k views

Shimano 11 speed MTB cassette on an 11 speed road hub, which spacer should I use?

I have a Shimano 11 speed mountain bike cassette and a Shimano 11 speed road hub. Without a spacer there is considerable wobble of the cassette, and I read that a spacer is required. My wheels came ...
sdgfsdh's user avatar
  • 887
10 votes
4 answers
5k views

Will an Shimano M8000 brake lever blade fit a M8100?

Will an Shimano M8000 brake lever blade fit a M8100? I broke my left blade, it's a Shimano XT M8100. I can only seem to find the replacement M8000 part. I don't want to replace the whole unit, seems ...
Jonathan S. Fisher's user avatar
9 votes
1 answer
815 views

Shimano Dura-Ace R9120 lever leaking

My bike's Dura-Ace R9120 rear-brake/front derailleur shifter (left shifter in UK) leaks brake fluid when I pull hard on the lever. It leaks from this specific place: I understand this lever is ...
Paul Suart's user avatar
9 votes
1 answer
11k views

Disc brake lost power

Firstly I'd like to mention that I don't think this issue is related to contamination (at least from sprays etc) and I'm aware of the following 2 threads: Disc brake stop working after wash, How do ...
Chris's user avatar
  • 809
9 votes
3 answers
12k views

Can a Shimano XT (mountain) hydraulic disc brake caliper be used with an Ultegra STI road brake lever?

Specifically, is the XT BR-M8020 mountain caliper compatible with an Ultegra hydraulic road brifter like like the ST-R8020 or ST-R8070? I have confirmed that they both use BH90 brake hose ("high ...
John McD's user avatar
  • 175
9 votes
5 answers
132k views

50/34 vs 52/36 crankset for 11-32 cassette (shimano 105 5800FC)

Following up on this enlightening answer, I would like to know the differences between 50/34(compact), 52/36(mid-compact) and 53/39 (standard). The cassette I am choosing is 11-32 to give me a wider ...
Sukhi's user avatar
  • 193
9 votes
3 answers
33k views

Can I replace chainrings without replacing the rest of the drive train?

I now ride a 60cm SurlyLHT with chain rings at 26/36/48t. Can I replace with a smaller set at 22/32/46t (or similar combination) without having to replace the entire drive train - cassette, rear ...
SurlyLHT60's user avatar
8 votes
2 answers
2k views

Number and size of freehub ball bearings for Shimano FH-HG50 (30H 9801)

I need help with an overhaul of the Shimano freehub that comes with the FH-HG50 hub (part no 30H 9801). How many balls go into the inner and the outer race? What size should they have? I have already ...
jaspb's user avatar
  • 123