Questions tagged [shifter]

Questions about shifting between gears or the shifters themselves.

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0 votes
1 answer
45 views

What crankset fits BH Ultralight RC?

This is somewhat related to an issue I had previously posted. The shop initially said it was the cassette, but after a thorough check-up, the shop told me that the issue is the wear & tear of the ...
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2 votes
1 answer
49 views

Is my front derailleur shifter broken?

This is a new problem on the front derailleur shifter that came with the bike. When I do a shifter cable pull, the cage of the front derailleur moves outward as it should (big chainring). I'd expect ...
  • 250
2 votes
1 answer
116 views

Abnormal steps increment with microSHIFT TS38 Thumb Tap Shifter, Feature or defect?

I recently bought a bicycle that came with a 7-speed microshift-M21 rear derailleur for which they have used a microSHIFT TS38 Thumb Tap Shifter. I observed that the rear gear shifting is not accurate ...
  • 123
2 votes
0 answers
79 views

Shimano gears not shifting (rear derailleur not moving)

My gears were slipping on a ride out, then they stopped shifting altogether. It’s on the lowest speed and won’t go up. I had the issue a couple of months ago, and the mechanic said something about a ...
4 votes
1 answer
126 views

Compatibility of Dura Ace SL-BS79 bar end shifters with GRX RX400 derailleur

Are road 10s 2x10 Dura Ace SL-BS79 bar-end shifters compatible with gravel GRX RX400 derailleurs 2x10?
4 votes
1 answer
90 views

Stripped reach adjustment screw on GRX RX 815 levers

In trying to decrease the brake lever reach on my GRX Di2 shifters, I seem to have stripped the 2mm hex screws. They are located in an awkward position on the top of the shifters: https://si.shimano....
  • 141
2 votes
3 answers
79 views

Fixing the thumb lever of a Shimano Rapidfire SL-M4100-R - doesn't retract if shift >1 cog

New bike with a SL-M4100-R deore rapidfire shifter, with shift indicator, 10 speed. Shifts fine both ways 1 gear at a time. However, using the thumb lever (moving from smaller to bigger cogs, harder ...
5 votes
1 answer
127 views

Front shift cable clip (?) loose, where does it go?

On my 2021 Trek Domane SL5, the shift cable started to dangle freely a few days ago. It comes with what looks like a clip that's attached to it. I'm not quite sure where that clip is supposed to go. ...
8 votes
2 answers
1k views

Improving front derailleur shifting

I've set my girlfriend's bike up with 9-speed Shimano MTB shifters and road derailleurs. Specifically, the shifters are Deore SL-M590 (3 x 9 speed), the front derailleur is Tiagra FD-4600 (2 speed) ...
5 votes
1 answer
384 views

Shifter cable broke in the shifter and now the end is stuck in the shifter

So The end of my rear derailleur shifter cable is stuck in the shifter. Is it even possible to get out? See the picture below. Shifting up and down doesn't really do anything to its position. Edit: I ...
2 votes
2 answers
155 views

Shifting gears is too hard

I bought my son a new bike (Early Rider Seeker 20) and at the first ride it turned out that he is not able to shift gears down (5 to 4 or 4 to 3 asf) because it is too hard to press. I tried it myself ...
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6 votes
1 answer
654 views

Can't shift into lowest gear on a new road bike (pics)

I've followed the Park Tools Rear Derailleur adjustment video exactly, step by step, because my bike was jumping gears after I reinstalled the rear wheel after changing the tube. The bike however won'...
  • 163
4 votes
1 answer
192 views

Shimano Claris and Sora left brifters interchangeable?

Are the left brifters for Sora ST-R3000 and Claris ST-R2000 interchangeable, assuming they're both 2x? The pull ratio should be the same since they're made for x9 and x8 drivetrains, respectively, ...
  • 165
2 votes
1 answer
119 views

Shimano 7 speed shifter with 9 speed drivetrain

Can I use a Shimano Alivio 7 speed shifter with Shimano Deore 9 speed drivetrain? Basically the bike originally came with everything being set up for 7 speed. Somebody switched out my tire/rim and ...
  • 21
3 votes
1 answer
117 views

Need help reassembling bike shifter

I recently needed to change my shifter cable, and I ended up taking apart the entire shifter instead of doing it the easy way. I was able to change the cable, but couldn't put it back together again. ...
3 votes
1 answer
535 views

Rear derailleur compatibility for friction shifting

I have a mid-1980s road bike with downtube friction shifters. I'd like to install a freewheel with a larger cog (something like 32 or 34T), but my current rear derailleur won't accommodate that. So I'...
15 votes
4 answers
2k views

What are strong methods of linking two shifter cables together?

Before you answer with "Don't." I would like to preface things by saying that I just really need a slightly longer shifter (and brake) cable but I can't find any on my local area and I don't ...
4 votes
1 answer
262 views

Can shifting front derailleur while not peddling cause damage

I was in school when someone shifted the front derailleur from 2 to 1 without peddling, the problem is I am not sure how long ago it was shifted, at max it could have been 6 hours, does this do any ...
2 votes
2 answers
758 views

9 speed Shimano (shifter+derailleur) + 8 speed cassette

At the moment I have a wheel with a Shimano 8speed cassette (HG30-8I) (11-30 or 32T) and also I have following rear derailleurs: XTR (RD-M952) (9 sp) GS Altus (RD-M310)(7/8 sp) SGS Questions: ...
1 vote
2 answers
128 views

Braze on downtube with no square for lever stopper

I've got an hr bates bar frame with braze on boss for downtube shifters. I have some campag shifter but any I have Googled have a lever stopper that looks like it needs a square section to fit over ...
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6 votes
2 answers
590 views

Question/ PSA about wavy shifter cable

I just discovered an issue with a shifter cable housing and want to share some details in case anyone sees the same early warning signs. I also have some questions about the issue. The front ...
  • 3,117
4 votes
1 answer
325 views

How to install i-spec shifters without the corresponding brake levers?

I bought a set of second hand Shimano M980 XTR shifters and some KCNC I-Spec Shifter Clamps. I have absolutely no idea how the two can work together. I would say "E" should slide into "...
2 votes
1 answer
96 views

Bar-end shifters with Pinion C12 gearbox

I read that the Pinion is indexed at the gearbox. Does this mean I can use an old school bar-end shifter in place of the rotary shifter?
3 votes
1 answer
187 views

Looking for an optical gear display solution for a Shimano Ultegra 10 speed 6700 group set [duplicate]

I upgraded my wife’s road bike for a 2011 carbon Devinci CX4 equipped with an Ultegra 6700 groupset. She’s missing the optical gear indicators she used to have on the shifters. I already looked at the ...
4 votes
2 answers
479 views

combining technologies and speeds: shifter and rear derailleur (index, friction)

is it possible to combine an indexed shifter with old friction derailleurs? As the cable is moved by the shifter, I understand that derailleurs should work by default and by moved with mm that the ...
2 votes
1 answer
186 views

A Derailleur (short, medium cage) for a 34T max. cog ring sprocket

I need suggestions from experience or a table of compatibilities in order to find a compatible rear derailleur for folding bicycles (20" and 18" wheel) I am aware that many the 28T max cog ...
-3 votes
3 answers
155 views

What is this hole used for in this nameplate for Shimano 105 5800 Brake Shifter?

That hole circled in red, what is it for?
  • 318
6 votes
3 answers
1k views

Does my shifter need to be replaced after crash damage?

Following my accident, does my left shifter need to be replaced as the area could crack?
  • 318
2 votes
1 answer
201 views

Can a broken ratchet in Shimano Tiagra 4600 rear shifter be replaced?

It looks like the ratchet mechanism broke in one of my shifters. As I try to shift the bit holding the end of the cable stays put and does not follow the lever. Even when it moves I can then pull by ...
3 votes
1 answer
320 views

Compatibility of 9-Speed Alivio Rear Shifter with a 9-Speed Deore Rear Derailleur

Is a 9-speed Alivio rear shifter compatible with a 9-speed Deore rear derailleur?
0 votes
0 answers
50 views

Shifting issue on road bike

Got given a BH Zapphire road bike, in good condition but rear gear cable was snapped. I have fitted a new cable but now got an issue. The gear will move up to the larger cogs fine, but then when I try ...
3 votes
2 answers
374 views

What happens if I shift beyond the maximum ranges?

I have a sensah empire 2*11 speed brifters + front / rear derailleur. I noticed that when switching to gear -1 or 3 for the front derailleur / 12 for the rear derailleur, it makes a louder than normal ...
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3 votes
1 answer
222 views

Best integrated road shifter/brake levers for people with small hands?

I’ve seen this subject raised a lot on various forums but with no definitive answer. Lots of opinions but no hard data. My questions are: Is there a measure of lever suitability for small hands? (...
1 vote
1 answer
882 views

Shimano 105 ST R7000 Shifter Not Engaging Problem

I have a 2 years old Shimano 105 ST R7000 shiter . The left one( front derailleur) started skipping pawl. At first it was 1 out of 10 shifts but then it got worse to a degree to unusable. I ...
2 votes
1 answer
274 views

Shimano R7020 Shifter leak

I have new bike with Shimano 105 R7020 and my left shifter has some oil/ grease on the spindle (see picture). If I wash and wipe it and will show up again. I checked the oil reservoir and there is no ...
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3 votes
2 answers
369 views

Shimano Deore 11s derailleur and shifter with a 9s casette 11-46t (Sunrace)

I was questioning if can I fit an 11s Deore derailleur with shifters to a 9s 11-46t Sunrace cassette? I've got the doubt because I need to change my derailleur to one that can tolerate up to 46t ...
4 votes
2 answers
127 views

Trigger shifters with reverse cable routing

I'm using bullhorn bars and I wanted the cable routing to be along the handlebars for a cleaner look. While I can use crosstop levers for the braking, I'm having trouble for the shifters. I'm not too ...
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4 votes
1 answer
269 views

Is the process of shifting the front chainring on a road bike with 2 chainrings always a two-step (two click) process on the shifter?

I have a Shimano Claris groupset. I was speaking to my bike mechanic and he was saying to shift the front derailer it is a 2 step process to change the front derailer. As per the manual it says with ...
  • 201
4 votes
2 answers
947 views

Chainring spacing of cranksets universal?

My understanding is that 7/8/9/10 chainring spacing is the same. I have a Shimano Claris double/2x8-speed that I want to upgrade to a triple front, but using a 10-speed crank. I’ve acquired a Shimano ...
5 votes
1 answer
446 views

Sturmey Archer AW shifter cable replacement with generic cable?

I want to replace the cable of a late 1980s AW IGH. I can buy new cable housing from just about anywhere, and cut it to size -- the end caps on the original housing are removable and I intend to re-...
3 votes
1 answer
166 views

Why is Shimano's top-trim position only ~1mm different from the top position?

The modern range of Shimano shifters (e.g. FD4700 and related: https://si.shimano.com/pdfs/dm/DM-FD0002-05-ENG.pdf) have a top position for big-small, and a top-trim position for big-big. The ...
  • 1,270
7 votes
3 answers
589 views

Are there any electronic shifters that decide front/back for you?

Are there any road bike electronic shifting systems out there currently that only have a single up and down shifter lever and use a computer to make the decision of whether to shift on the rear ...
4 votes
3 answers
434 views

Shimano Ultegra shifters 8020 bottom plastic cover screw. Where to get it?

Does anyone know the specs of the screw of part #7? Or where to get it in US? It unscrewed and got lost. I think I might find something similar not bike-specific.
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5 votes
1 answer
533 views

Road-size compatible shifter for Shimano Alfine 11

Can someone recommend a shifter for the Shimano Alfine 11 that is compatible with road-size (23.8mm) bars? The standard shifter (Shimano SL-S700) is designed for MTB-size (22.2mm) bars. Thank you!
  • 1,398
3 votes
1 answer
80 views

Shimano rapid shifter R440 gear display

I have a Masi flat-bar road bike with Shimano 105 groupset (been in storage for years). I've disassembled the R440 rapid shifters and lubed them so that they rachet properly. However, the 9 speed ...
  • 31
2 votes
2 answers
889 views

2020 Ultegra rear shifter doesn't shift (or indeed even move the cable); cable still tight and derailleur can move by hand

On a ride today, on a gear change, the chain dropped on the front crank. After putting it back on, the rear shifter no longer shifts up or down. The rear derailleur is on the second smallest cog. Some ...
  • 153
4 votes
2 answers
925 views

Can you use two different shifters (eg. Left-Tiagra,Right-105) on the same cockpit/handlebar?

I couldnt find the correct crankset... so i was wondering if you could use a crankset (Tiagra) with a (105) front derailleur? If not can you use two differnt shifters on one cockpit/handlebar and if ...
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3 votes
1 answer
286 views

Can I use 3x sti on 2x crankset?

So my friend is going to upgrade his bike and he's giving his sti for free (Shimano Sora R3030 3x9 sti). My question is if I can use it on my 2x crankset. Will my chaib fall off if I accidentally ...
2 votes
1 answer
220 views

Shimano tourney 3x fd with 9speed cogs

I'm planning to upgrade my rear cogs and Rd with a 9 speed Sora and I want to retain my 3x setup. I already found the r3030 which is 3x9 Sora shifter. My main concern is if the Tourney 3x FD ...
4 votes
2 answers
1k views

9 speed cassette and shifter with an 11 speed derailleur, will it work?

So recently my uncle gave me a Deore M5100 11 speed RD, but my current setup uses an Alivio shifter with a LTWOO A5 elite RD and an 11-46T cassette. While yes the LTWOO RD is designed to handle a 46T ...
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