Questions tagged [derailleur]

Mechanism to move the chain from one sprocket to another.

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3
votes
2answers
430 views

Why is low sprocket minimum 28t for a Shimano 105-GS?

I have a Shimano 105 R7000 GS (medium cage) rear derailleur and would like to mount a 12-25 cassette. According to its specs, this should not be possible. I am just wondering: why not? A GS-cage will ...
1
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1answer
62 views

Broken front derailleur 7400 Dura Ace

The chain came off a couple of times while I was riding yesterday and when I tried to put the chain back, the small screw came off from front derailleur. I think maybe that’s a thing to attach the ...
0
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1answer
43 views

New bike rear derailleur not working correctly

I got this new bike over a week ago, and I was trying to fix the bike's derailing system and I can't seem to get it fixed. I tried watching a ton of videos online on how to adjust your derailleurs ...
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0answers
83 views

Front dérailleur does not shift into largest chainring

I have a Shimano ST-EF60-8R shifter with a Shimano FD3303 front derailleur - it does not go into 3rd gear which is the largest; it feels like the wire is going to pop. I just bought the bike, a Trek ...
2
votes
1answer
155 views

Can I fit an MTB freewheel onto my road bike?

I am looking to replace my 7 speed 12-18t freewheel on my old road bike to a different 7 speed (something like 14-28t) for easier hill climbs. Is it possible to do so and what are some possible ...
0
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1answer
102 views

Front and rear derailleur compatible?

I'm struggling and need help! My front derailleur which is 3x9 speed got damaged. Shimano Acera 9-speed, 34.9mm clamp, low-mount, top-swing, dual-pull but I'm thinking to upgrade it with a Shimano ...
1
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1answer
36 views

Jamis Commuter 4 conversion to derailleur geared

I'm trying to convert my Jamis Commuter bike with an IGH to a 10 speed derailleur setup. I've got a bit stuck on the project with the rear derailleur. Here's what I want to verify. Looking at the ...
2
votes
1answer
260 views

Front derailleur cable hits path of pedal

The front derailleur cable is on the path of the pedal. Derailleur cable is in the path of the pedal (right of picture): The amateurish solution of pulling it back with a loop requires a solution ...
3
votes
1answer
120 views

Bike derailleur, keeps flicking back when I pedal

I have changed the derailleur on my daughters back, bought like for like. Now fitted. When I try to pedal the derailleur, it flicks backwards and the bike won’t pedal forward, it remains stuck. ...
2
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1answer
104 views

Seating the rear derailleur cable housing

Unpacked road bike. Assembly is simple enough, except that the rear derailleur cable housing is not in its groove (I'm sure there is a specific term). Here is a picture. No matter how much I tug (...
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0answers
193 views

Shimano 9 Speed Cassette with Microshift Advent 9 Speed Road Shifter

I fancy setting up my old but amazing Cannondale F1000 with a dropbar and corresponding road shifters.The only affordable system I could find for that is the Microshift Advent 9 group. I'm happy with ...
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1answer
158 views

Chain crunching after degrease and lubrication

I did the usual degrease and lubrication on my mountain bike today but when I tried to ride the bike later on I heard pretty bad crunching sounds. The sound is definitely coming from somewhere around ...
1
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3answers
90 views

My bike shifting won’t surpass 6

I own a Scott Aspect 740. On the shifter it says it is on gear 7, 8 or 9 however in reality on the rear derailleur the chain is only on 6 and won’t go past this. I’m looking for a fix as it is very ...
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4answers
2k views

11-42t cassette with a 9 speed derailleur, will it work?

I'm trying to figure out if my 9 speed derailleur (Shimano Deore) will work with a 11-42t cassette (note that it is a specific 9 speed cassette). It is for a MTB 1× setup I previously had a 3×9 ...
4
votes
3answers
306 views

Does the front derailleur limit chain ring size?

Does the front derailleur have limits to which size chain rings can be used? I have a groovy old 1988 Schwinn Prelude and for the most part it does just what I need. However there are some steep ...
1
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1answer
51 views

First shift up after shifting down only moves as I'm releasing the lever not on both the click in and click out of the lever like the consecutive ones

Video of Issue: https://imgur.com/nY8s4Z0 I have just been given my dad's old bike and was looking at fixing it up. However, it has a shifting problem where it shifts down the gears perfectly fine ...
3
votes
2answers
317 views

How does one adjust the equivalent of the barrel adjuster on the XTR RD-M9000 rear derailleur?

I'm used to be able to turn the barrel adjuster on a rear derailleur to be able to bring the derailleur in or out (relative to the wheel). However, it doesn't seem like this particular derailleur ...
0
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1answer
36 views

Shifter isn't working, cable doesn't react

When I pull the shifter for my front dérailleur the cable doesn't react. Even with tension on the cable. Now I made the cable loose. Also my barrel adjuster is disconnected, maybe the problem is ...
0
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2answers
93 views

Front derailleur not shifting up

I have a road bike with shimano front derailleur and dropped shifter. For weeks my front derailleur has been very stiff, requiring much force on the shifter to go onto the bigger ring, so the other ...
3
votes
1answer
74 views

Shifter labeled low to high

On my bike, on the left shifter, It is labeled low to high and has lots of dots between them. I don't know how to shift to one individual gear on the front derailleur. It seems that If I shift it ...
1
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1answer
1k views

Adjusting Tiagra Front Derailleur FD-4700

I'm trying to adjust a Shimano FD-4700, brazed-on type installed on a 2019 Giant Fastroad SL-1 I recently changed cranks from Shimano RS400 34-50T to Shimano 4700 34-50T. I took it for a test and the ...
5
votes
2answers
137 views

What is this retainer ring?

Shimano RD-9000 which is a bit dinged up due to me setting the bike down...with my feet still clipped in to the pedals What does this ring do, can/should I snap it back in to place, and how? I have ...
3
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2answers
2k views

Vintage bike, new chain

I've refurbished a vintage bike and I switched the old derailleur with a new medium cage tourney derailleur, the chain is also new and is 114 links long, which should be fine since me largest cog on ...
3
votes
2answers
263 views

Derailleur and back wheel alignment issues

I've got a very old used bike. It has a bunch of issues I'm trying to fix at once: the derailleur is not keeping the chain tight only in certain gears, the back wheel wobbles slightly and over time ...
3
votes
1answer
89 views

Rear derailleur shifting from 1st to 7/8th with one click

I have recently replaced shifter cable and reset the pulleys so that they are in line with the cogs. I've set the high and low limits and have the gears shifting nicely upward & have fine tuned ...
1
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2answers
1k views

Campy 11 speed and Shimano compatibility

Two part question. Is it possible to run Chorus, Record or Super Record 11 speed disc mechanical brake/shifters with Ultegra R8000 11 speed derailleurs? I can use either campy or Shimano wheels and ...
2
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3answers
196 views

What factors to take into account when choosing a hybrid bike?

I've decided I'd like to start commuting to work, but I'm not sure what factors I need to take into account when choosing a bike. I figured a hybrid bike suits my needs best, since I will be riding on ...
0
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1answer
72 views

Upper pulley too close to chain [duplicate]

Today i put my bike on my tacx home trainer. I heard a lot of ticking on my chain, so after viewing my setup i recognized that my upper pulley is too close to my chain when it's on the smallest cog ...
6
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2answers
2k views

Chain cassette noise

Hello fellow cyclists, I just bought a new Home Trainer that has a Shimano 105 Cassette. My Bike has an Ultegra drivetrain with less than 600km (375mi). I have checked the wear of the chain which ...
3
votes
3answers
192 views

Cage Length (Rear Derallieur) and Total Capacity

My drivetrain required total capacity is 14. (folding bicycle Dahon Eco C6, 14-28 rear, 1x front) The rear derailleur (Shimano TZ50, which I purchased), has total capacity = 34 and a long cage. Are ...
0
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1answer
134 views

Replacement for an old FD-M760 front derailleur

I've got a bent FD-M760 front derailleur. I'm wondering what the best replacement would be?
3
votes
3answers
2k views

Can I use any screw for my derailleur limiters?

I need new limit screws for my rear and front derailleur. Bike shop wants to charge $5 for them when they probably cost $0.05 each. Can I just get my own screws from the hardware store or do ...
1
vote
1answer
95 views

Chain and derailleur question

I inherited a Motobecane Nomade with no derailleur. I am trying to replace the missing derailleur and chain. I was given a Shimano SIS Tourney rear derailleur long cage and front derailleur and ...
1
vote
1answer
73 views

Fuji Transonic 2.8 2016: rear derailleur hanger direct mount or standard?

I have a Fuji Transonic 2.8 from 2016 that has the following hanger installed: https://wheelsmfg.com/derailleur-hanger-215.html I am replacing the short cage Shimano 105 rear derailleur with the ...
7
votes
4answers
12k 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 ...
1
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2answers
373 views

Problem with Apollo Gradient clunky and missed gear changes

About four months ago I decided to get back into riding. I bought an Apollo Gradient mountain bike. I know this is quite a cheap/basic bike but didn't want to spend a lot if I didn't stick with it. I ...
3
votes
2answers
4k views

Nine speed derailleur on 10 speed cassette

Will combination work? I have 10 speed shifters, 10 speed chain, 10 speed cassette and all components are Shimano. The reason I ask is because I am new to cycling and I am having trouble indexing my ...
1
vote
2answers
2k views

Shimano 105 FD-R7000-F front dereailleur chain rub

Recently purchased a new Cube Attain GTC 2020 road bike, it came with : Front Derailleur - Shimano 105 FD-R7000, 31.8mm Clamp Rear Derailleur - Shimano 105 RD-R7000-DGS, 11-Speed Brake System - ...
4
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2answers
2k views

Which way does this tension pulley go?

Took apart my Shimano Acera derailleur cage to clean it up a bit and didn't bother to note the shape of the tension pulley which is a bit thicker on one side. It seems like it would be shaped this way ...
0
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1answer
201 views

Shimano FC-5700 chainring with FD-5600 derailleur?

Currently my front chainrings are Shimano FC-5600 48/40 with FD-5600 derailleur. As I can not get new chainrings in FC-5600 I was asking myself if my FD-5600 supports FC-5700 53/39 chainrings?
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0answers
85 views

Adjusting rear derailleur

I have a 18 speed mountain bike. (Huffy) I recently had my rear derailleur replaced along with new shifters. Shifting in the lower gears is smooth and there is no noise when pedaling. However, when ...
1
vote
1answer
91 views

Do simpler casettes have less issues with missing shifts?

On my new Trek Marlin with a 8 gear cassette, sometimes I try to downshift into the middle of the range of gears and it doesn't take (upshifting works fine). I can hear the gear clicking for a few ...
1
vote
1answer
105 views

What derailer hanger do I need? (screw on derailer is bent)

I'm hoping for some help with repairing my bike. My derailleur hanger snapped recently. I think it should be easy enough to replace with the right advice. I have a picture of my previous hanger. It ...
0
votes
2answers
1k views

Tiagra 4503 front derailleur replacement

I have a bike with a 4503 Shimano setup (Tiagra triple, 9 speed). The front derailleur is broken. I can quickly get a 105 derailleur (5703) at the local bike shop. I just want to be sure that it is ...
2
votes
1answer
77 views

The shifter dosen't want to shift to the lower gear

This is a new shifter and derailleur but only can shift to the highest gear and won't shift back to the lower gear. How can I fix this? I already changed the cable housing but when I pull the ...
1
vote
1answer
44 views

Adding lower gears to a nine speed Ultegra road bike with triple ring

My wife has a road bike with an Ultegra triple crank and a nine speed Ultegra 13/30 cassette. She needs a lower gear. Can the derailleur handle a larger rear sprocket? Ho large?
0
votes
2answers
390 views

Can't shift to highest front gear

I've been trying to propely adjust front gears in my bike, but failed to do so. I can't make the front gear to shift to highest gear. I can make it work when testing the bike while it's lifted, but ...
5
votes
3answers
2k views

Installing a chainguard on a bike with derauiller

My pants always get caught in the chain (and wearing shorts is not an option). However, it seems that it's impossible to have both a derailleur and a chainguard so what is the solution? Can I just ...
0
votes
1answer
75 views

New front derailleur

I need to replace the front derailleur on my friends bike, this one is old and rusted, its a shimano FD M191. I've read a bit about what I need to know before I buy a new one but I just wanted to be ...
0
votes
2answers
113 views

I'm wanting to replace some parts

I did some work for my neighbor and he gave me some cash plus a road bike. I've used it for about 3 years but I was wondering if I could upgrade it a little. The chain slips off some times and it's ...

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