Questions tagged [derailleur-rear]

Questions referring to the derailluer responsible for moving the chain along the cassette

Filter by
Sorted by
Tagged with
1
vote
1answer
57 views

KMC Z7 chain for 8 speed cassete

Can I use KMC Z7 chaing (1/2 x 3/32) on 8 speed cassete Sunrace MFM-56? When I changed the old chain with KMC Z7, the smallest sprocket and the largest are fine. But in the between the shifting is ...
1
vote
1answer
32 views

Mix Match Using Wolftooth Tanpan

My current setup are using a full Shimano 105, medium cage GS 11-34t, crank are 50-34t. Through some digging, I want to upgrade the RD using Deore XT M8000 SGS Long, paired using wolftooth tanpan. ...
0
votes
2answers
62 views

8 speed flat bar set up with Dura Ace RD-7700 or new Claris RD-2400

I'm buying a new drivetrain (cranks, cassette, chain) for my flatbar commuter that was mostly built of parts. I currently have a Dura Ace 7700 short cage derailleur on it, I got it from a friend a ...
4
votes
3answers
170 views

Why rear derailer has limit on front chainring difference?

Just as an example, Shimano RD-M786-SGS (as most other RDs) specification says "Max. front difference: 22T". Why is rear derailler limited in front max difference? It is clear that it is ...
2
votes
1answer
56 views

Chain alignment on jockey wheel

Going over the lower jockey wheel (see first picture), my chain rubs against the inboard side of the cage and sometimes snags. It is a brand new derailleur (Shimano Acera M360) and a new derailleur ...
0
votes
1answer
48 views

Drivetrain problem!

I have had issues with the drivetrain on my bike. I believe I've pinned it down to two issues. The Shimano Deore XT SGS (long cage) 9 speed rear derailleur needs replacing. It was either damaged when ...
6
votes
0answers
140 views

My derailleur completely “opened” up. It is now almost a straight line. What have i done to my derailleur?

I had a flat on the side of the road. So I took my wheel off to replace the tire with a temp to get me home. When I reinstalled the wheel, the derailleur "opened up" completely...what have ...
0
votes
0answers
34 views

Bracket axle for Shimano RD-2300 rear derailleur

Where can I find a bracket axle for Shimano RD-2300 rear derailleur? I searched everywhere and I didn't find one. I need to mention that the frame type is Speed Fitness Alloy and bike is a Focus ...
3
votes
1answer
75 views

Is it possible that a too tight rear wheel quick release can cause shifting issues?

It seems that is the case with my rear QR/derailleur. If QR is really tight it's impossible to get the shifting quite right. Could it be because of material fatigue in my derailleur hanger? It's been ...
1
vote
0answers
31 views

Derailleur can't shift to 51-T sprocket. Deore CS-M5100 + RD-M5100

ISSUE: When attempting to shift to the largest cassette sprocket, the side of the derailleur cage contacts the 51t sprocket, so the chain is not able to go up the gear. WHAT I DID: My drivetrain was ...
4
votes
1answer
513 views

Shimano Acera hits spokes. Which screw to turn?

I have a Shimano Acera that hits the spokes in first gear (largest rear sprocket.) I found three screws on the derailleur Which one should I turn, in which direction? The bike (Specialized Sirius 2.0) ...
4
votes
1answer
54 views

Shimano TZ rear derailleur cable entry at strange angle causing wire rub

I have a cheap (but very nice!) secondhand bike I bought that I am slowly servicing/repairing using YouTube, forums etc. I am stuck on the rear derailleur, I can index it properly and it shifts fine, ...
0
votes
0answers
56 views

Rear derailleur adjustment

I have a 7 speed Shimano derailleur. It shifts really good from 1 to 6 but when I try to shift from 6 to 7 it just doesn't want to shift. Can someone help me?
1
vote
0answers
47 views

Using 11-36t 9 speed derailleur with 11-40t 9 speed cassette

So I've got the shimano altus rd-m2000 and it says that it only supports 11-36t. However, I've seen people on forums say that it's possible with this derailleur. Even it I was wondering if with a ...
3
votes
3answers
73 views

Shift lever tight when cable clamped in derailleur, adjustments seem futile

I have a 2020 Giant Trance 2 I purchased new at the beginning of June 2020. Recently I had to replace my shifter cable (I broke a ferrule and the cable was fraying and very short, so I figured the ...
1
vote
2answers
96 views

Can Shimano Claris R2000 shifters be paired with Claris 2400 derailleurs?

Can I use the modern looking shifters with the older model derailleurs without any problems in shifting?
1
vote
1answer
95 views

Chain slips off chainrings with a lot of pedal force

I have a 2001 Raleigh R600 road bike. It wasn’t ridden much when I got it, and I’ve recently been putting some miles on it. It was a 3x9 speed with 9 speed components. I just changed: Wheels Cassette:...
0
votes
1answer
35 views

Determining if there is too much chain tension on 1x setup with XT clutch derailleur

I've outfitted my 2016 Giant TCX with a 1x 42t in the front and 11-40 in the rear. I'm finding that with the clutch engaged shifting into the 40t in the back is "harder" and it feels like ...
0
votes
0answers
23 views

Shimano mechanical vs Di2 bracket axle unit difference

This puzzled me for a while, but I couldn't find an answer. Why are some mechanical and Di2 bracket axle units different? The interface on the RD body is the same, you can mount both to the same ...
1
vote
0answers
63 views

Direct mount rear derailleur

I'm upgrading an old MTB for commuting, it had a 5 speed on the back but I'm going to be putting on a new 26" rear wheel with a 7 speed cassette because the freewheel axle wobbles, makes noises ...
3
votes
2answers
174 views

Can someone help me identify this old Shimano derailleur?

I want to poke around online a bit and see if I can find anything out about it. It's a long cage, on an old 18 speed Univega MTB. Thanks.
1
vote
1answer
57 views

Shimano inner cage plate replacement

I have a broken inner cage plate on my Shimano Ultegra RD-6700 GS rear derailleur. This replacement part # is Y5VG09300, and I can't find this part anywhere. I'd really hate to throw out a perfectly ...
1
vote
1answer
61 views

Suntour derailleur compatibility with shimano shifter

I bought today a bike with a Suntour rear derailleur (XR 150 8 speed) for my daughter. It has old rotating shifters I with to replace with triggers. Will a shimano 8 speed (e.g. Altus/Acera) fit this ...
3
votes
1answer
60 views

Acera M360 upgrade

My 7-speed Shimano Acera M360 rear derailleur fell apart and I now need to replace it. I could simply just buy the same but honestly I never liked it very much and would appreciate something with a ...
0
votes
0answers
55 views

Compatible derailleurs with Shimano RD TY22 with dropout claw hanger [duplicate]

I have an older bike I love with a Shimano RD TY22 WD rear derailleur with a dropout claw hanger that needs to be replaced. I cannot find one listed anywhere. Are there any derailleurs available to ...
4
votes
2answers
71 views

Can't get lowest gear and derailleur shifts on its own

I have a bike with downtube friction shifters and a 5 speed freewheel. When I bought the bike a while ago the shifters weren't connected so I did it myself. At this point it all worked fine. I took it ...
2
votes
1answer
60 views

Can I change my derailleur without changing my shifter?

I have Shimano V-Brake 8-speed shifters on my bike. These have the brakes and the shifter in one component. I'd like to change my derailleur can I put in a newer 8 speed Shimano derailleur that will ...
0
votes
0answers
48 views

What might be causing the faulty shifting on my bike?

I bought a used bike that has 8 speed cogs and 3 speed chainrings. The front shifts great but the back regularly fails on the 6th and 5th speeds. I know a bit about adjusting the shifters so I can say ...
1
vote
2answers
71 views

Campagnolo Super Record H Screw

I am having trouble adjusting the shifting on my Campagnolo Super Record rear derailleur. I have set the high and low limit. I think the main problem now is that the jockey wheels are too far away ...
1
vote
2answers
81 views

Chain touches plate between pulleys

I've replaced chain and dropout hanger. The rear derailleur is Shimano Claris. When I'm turning pedals chain (Shimano hg-71) is touching small plate (marked with red arrow) between high (closer to ...
3
votes
1answer
144 views

Sram Eagle NX Rear Derailleur not reacting to cable tension

Have had a SRAM NX Eagle rear derailleur (bike is a 1x) on my YT Jeffsy for about a year and a half. For about the first year, worked awesome, indexed the gears a few times and all was good. Last half ...
0
votes
1answer
134 views

Direct mount vs. hanger derailleur

Currently repairing a bike that I got off the road for free years ago. Around three years ago, a stuck link caused a chain jam while pedaling at high speed, causing the metal around the b-knuckle on ...
3
votes
2answers
432 views

Can I use Shimano 105 rear derailleur from 11-speed bike with 10-speed Tiagra shifters?

I have a 10-speed 2013 Specialized Allez Elite with Tiagra componentry (and an 11/28 105 cassette) and would like to install my old Shimano 105 rear derailleur in the back to replace the Tiagra one. ...
0
votes
2answers
69 views

How do I figure out what the model number is of my Shimano rear derailleur?

Here are pictures of my current derailleur I need to replace.
3
votes
2answers
176 views

I think I have installed my new rear deraileur incorrectly, can anyone give me some advice

I have replaced the derailleur on my daughters Dawes Academy 26, but I think it looks wrong. On the lowest cog (gear 8) the derailleur looks like this: enter image description here: I assumed that ...
1
vote
1answer
74 views

How do I determine the “length” of this derailleur?

What length is this derailleur please. Cannot determine if its a short, medium or long.
2
votes
1answer
138 views

Can I reorient my dérailleur so the top jockey doesn't hit the cassette?

I was running a RD-M7000 dérailleur on my Scott E-Genius 730 and I recently received some good advice here that the Deore RD-M6000 is a drop-in replacement. I have now purchased and fitted that, but ...
2
votes
1answer
79 views

Upper pulley too far from cassette

I'm doing a 1x conversion with a Shimano SLX (M7000) groupset on an old road frame. I just installed the rear derailleur and the pulley is too far away from the cassette. 18mm from the max cog (...
1
vote
1answer
48 views

Replace a Sachs Echo s with modern derailleur

enter image description herelooking for a replace of a Sachs Hurret Echo S with a modern derailleur for use on a 14 28 free wheel. Suggestions have been the Shimano Altus or Shimano Tourney neither ...
3
votes
3answers
253 views

Friction shifting 9 speeds using an 11 speed rear derailleur

I am interested in running a 1 x 9 drivetrain using an 11-speed Shimano 105 R7000 rear derailleur. If I'm friction shifting 9 speeds, will using an 11-speed derailleur cause issues? Or is it as simple ...
0
votes
2answers
84 views

Have I bought the wrong rear derailleur?

I cycled through a plastic bag and it bust my rear derailleur apart. Photo attached. My bike is a Raleigh Equipe road bike, which looks like this: https://www.ecosia.org/images?q=raleigh+equipe+road+...
1
vote
3answers
136 views

Why can't my rear shifter shift into low gears?

I have an entry-level Trek mountain bike bought several years ago, with a Shimano derailleur. It's been hanging in my garage for the last few years, taken down only a few times for rides. I just did a ...
3
votes
3answers
210 views

Is my Shimano Deore SLX dérailleur a medium or long cage?

I have a Scott E-Genius 730 Plus and would like to replace the rear dérailleur (the probable cause of difficulties described in my last question). It's a Shimano Deore SLX Dyna-sys unit, it's for a 10-...
2
votes
2answers
259 views

Bottom jockey wheel on rear derailleur keeps skipping chain

Basically the angle between the bottom and top wheels is too great causing the chain to skip to the outside of the bottom wheel under force. If I use the higher adjustment screw on the shimano ...
0
votes
1answer
112 views

Why does my Shimano Deore SLX dérailleur not rotate into the expected (vertical) position?

I have a Scott E-Genius 730 Plus mountain bike (around three years old). I had a chain snap recently, so I have replaced the rear 10-speed cassette, and am now trying to route a new chain correctly. I ...
1
vote
1answer
151 views

1x GRX chain sizing with 42T cassette

I'm trying to convert a bike to a Shimano GRX 1x setup using the following components: RD-RX812, CS-M8000 (11-42T), CN-HG701-11 (and FC-RX810-1, 42T). The problem I'm stuck at is when shifted to the ...
3
votes
1answer
66 views

Do I need a medium or large cage rear derailleur?

My SRAM x5 rear derailleur got caught on something and broke. I went to order a new one and learned there are different cage sizes. I don't know which size cage I currently have. While trying to ...
1
vote
1answer
49 views

Replacing a B-knuckle tension spring

I have a [cheap and old] Falcon Indexing System (rear derailleur). There seems to be not enough tension on the B-knuckle pivot point so the cage runs into the large cogs. There is no B-knuckle ...
3
votes
1answer
73 views

Chain pops off guide pulley when pedaling

I re-installed new tires for the first time yesterday. Now I'm having problems with my rear derailleur. The chain keeps popping off the derailleur guide pulley when I pedal forward. I can re-seat it ...
1
vote
1answer
75 views

Derailleur does not match up with chain after tube replacement

I have been recently replacing rear inner tube on my bike, since then I was not able to fix the wheel back in. It makes unusual clicking sounds when backpedaling and one side of the chain gets loose....

1
2 3 4 5
8