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

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0
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1answer
45 views

Indexing 6 sprocket rear derailleur, having trouble reaching largest sprocket

I'm trying to index my rear gears after replacing my 6 sprocket freewheel. I've set the limit screws fine, but I didn't have enough play in the barrel adjusters to make much adjustment, so I undid the ...
0
votes
1answer
64 views

How to know the size of the parts of my bicycle? [on hold]

I want to change the crankset, cogset, rear derailleur gears, and the chains. My bicycle has 3 gear on front and 7 on the rear. The bicycle frame is 51. I do not know how to choose between different ...
3
votes
2answers
103 views

What to do about a broken rear derailleur inner cage plate?

The chain on my road bike got caught in the rear cassette and as it snapped it broke one of the guide tabs on the inner cage plate of my new Shimano Ultegra 6800-SS rear derailleur. My two questions ...
0
votes
2answers
82 views

How do I bend my rear derailleur hanger (part of frame) back into place

Somehow I bent my rear derailleur hanger, how would one suggest bending it back into line? In my case the rear derailleur hanger forms part of the frame and therefore if I snap it when bending it back,...
1
vote
0answers
64 views

Shifting problems after removing and replacing rear wheel

I had a mysterious flat tire on my rear wheel after I had left the bike standing for the workday. I removed the wheel and changed the inner tube. I didn't think anything went wrong while doing that (e....
0
votes
0answers
26 views

Want stylish rear derailleur to match 1980s friction-shifting bike? [duplicate]

I've just crashed and bent the Suntour Cyclone long cage rear derailleur which I've used since 1985. (Damn.) Can anyone recommend a new model that meets the following requirement? This was a classy ...
4
votes
2answers
110 views

Rear derailleur lifespans

How should I know when my rear derailleur is getting worn? I can measure/inspect chains, tyres and brakes; gears tend to show problems on a new chain if they're worn. But when changing my chain at ...
2
votes
1answer
68 views

What cage is this

I have this rear XTR Shadow+ derailleur and I wanted to know if it's compatible with OneUp RAD Cage (which is for Shimano medium cage) : Will it work ?
2
votes
1answer
57 views

Can't find the B-tension screw in rear derailleur

I am trying to register my old rear derailleur (a 15-year-old Shimano "7sis"), and I'm trying to find what every guide calls the "B-tension screw". I looked everywhere and couldn't find anything that ...
4
votes
2answers
99 views

Chain skipping mid cassette after a clean

I have cleaned my chain and gears with rubbing alcohol and towels. Afterwards, I applied some chain lube on the chain. Now, when under a lot of torque, the chain skips and slips mid-cassette. Low ...
1
vote
1answer
28 views

How do I determine my Campy cage size? [duplicate]

I have a Campagnolo Chorus 9-speed rear derailleur. I am trying to determine the largest cassette I can use. The main question I have is how do I determine what size cage I have. It is not a new ...
4
votes
1answer
30 views

Tourney RD upgrade

I have a Shimano Tourney rear derailleur that has an extension claw (hanger). I would like to replace it with a Deore M591. Do I need to install an adapter to make up the length of the claw? ...
2
votes
1answer
37 views

Can I Upgrade shimono Ultegra 9 speed 12-27 cassette

I have a 2009 Trek 7.7 FX with Ultegra 12-27T cassette, 50/39/30 Front triple. I want to upgrade the rear cassette to give better hill climbing gears. Can I fit an 11-34 Rear cassette and if so what ...
0
votes
1answer
46 views

Rear derailleur on this set

I have one KHS sixfifty 500, I want to upgrade my bike so I have already bought Shimano Deore XT M771 front derailleur Shimano Deore M590 shifter So I want to know your suggestion to rear ...
2
votes
1answer
89 views

Shimano Rear Derailleur Max Capacity

I need to get a new rear derailleur. My chain rings are 53/39 and my cogs are 28/11 so if I am not mistaken I need a total capacity of (53-39) + (28-11) = 31. I need a 11 speed compatible rear ...
7
votes
7answers
295 views

why would my chain slip on the road, but not when the bike is on a stand?

The chain on my bike has started to slip a lot -- every couple of seconds when riding. It happens, as far as I can tell, in every gear, and is unrelated to shifting. The precise nature of the problem ...
4
votes
1answer
244 views

Vintage 1979 Peugeot roadbike rear derailleur change

Hello guys, The rear derailleur (6 speed) on my bike (picture attached) shattered all of a sudden while biking uphill after a few months of problems with the chain not fitting immediately on the ...
4
votes
2answers
79 views

Diagnose grinding sound from single rear cog

I've got a '70s-era ten-speed road bike with (what I think is) a Huret Eco rear derailleur which shifts well, but for some reason a loud grinding sound emits from the rear of the bike when using the ...
3
votes
1answer
42 views

Cable pull, indexing of Shimano's IGH vs. deraileur

What's the exact cable pull and indexing of Shimano Alfine SG-S700 SRAM G8/9 Shimano ROAD RD-5800 SRAM Force Rear dérailleur other... The idea is to use ST-RS505 brifter with an IGH. Not entirely ...
1
vote
1answer
610 views

Why 9 speed front derailleur cannot handle 10 speed rear derailleur?

Some people are using non compatible components on their bikes. For example, using Tiagra's old 3x9 speed FD (4503?) with a 10 speed RD. And it works. So what is the point of saying "Dear customer, ...
1
vote
2answers
48 views

Rear derailleur does not shift down

I'm working on a bike where the right shifter was not working and I replaced it. it's a 7 gear cassette and the problem now is that the rear derailleur would not shift down past 3. When I manually I ...
3
votes
1answer
108 views

Indexing issues on new build, shimano 105 5800

I am in the process of building a road bike. I currently setting up my rear derailleur. I can't seem to index the gears. I have set the high and low limit screws. I can shift up the cassette (small ...
0
votes
1answer
75 views

Rear derailleur needs a couple pedalstrokes to change gear

As of late I'm having some trouble with my rear derailleur. When I shift specific gears (most likely to happen to the middle gears), the rear derailleur feels like it doesnt have enough power and ...
3
votes
3answers
138 views

When down-shifting my rear derailleur (Campagnolo 10spd) is skipping multiple gears.

The problem feels like it is in the shifter as it just "lets go" when I press it. I'm told it could be the G spring. Is it something in the derailleur or the shifter? If its the shifter is replacing ...
4
votes
1answer
45 views

Correct setup of Huret rear derailleur

I've got (what I think is) a Huret Eco rear derailleur which seems to somehow get "stuck" in an "open" position when shifting on the front chainrings, i.e. the return spring somehow stops "working" ...
4
votes
1answer
52 views

Lowering my Tour bike gearing to MTB gearing

I am going on cycling tour on the Himalayas through Tibet, Bhutan, India, Nepal and Pakistan on my Araya FED touring bike. Now I am thinking in changing my gear, crank which is SR-SUNTOUR XCT 48-38-...
1
vote
1answer
61 views

Shimano STX RD-MC30. Replacement

Apparently there is too much play, indicative of it being too worn to function properly. Would the RD-MC31 be compatible or is there a newer compatible set that I could use?
1
vote
1answer
49 views

Shimano Altus Rear Derailleur for single speed to 3 speed conversion

I am converting my Sonders eBike from a single speed to a three speed and I need some help finding the best Derailleur. I would like to use a Shimano Altus as I understand that they are a step up from ...
1
vote
1answer
94 views

Rear derailleur is messed up

I have no clue what happened to my derailleur on my bike. I can ride the bike and after a couple of cranks the chain gets really lose and seems like it's about to come off so I stop pedaling and wait ...
2
votes
1answer
85 views

Can I change the cage on a Campagnolo Chorus derailleur?

I have a Campagnolo Chorus 10 speed rear derailleur that will not shift properly. I've aligned the frame, adjusted the high and low settings and attempted to fine-tune the shifting with the barrel ...
1
vote
0answers
70 views

Campagnolo Cambio Corsa

Does anyone make this sort of system and sell it today, or is my only option looking for someone selling theirs? I've googled whether similar systems are being made today but found nothing to my ...
0
votes
3answers
111 views

gears overshifting issue

As I have explained in my previous post here I have changed my rear shifter cable and housing. But I'm still having issues with shifting gears smoothly. It overshifts at particular gear combinations ...
3
votes
1answer
105 views

Can a XTR 2016 di2 bracket axle unit fit in XT 2016 rear derailleur?

I have recently lost my bracket axle unit of my XT 2016 m8000 rear derailleur. My friend will be mailing me his XTR 2016 di2 bracket axle unit. Is it compatible/will it fit? I just wanted to know ...
2
votes
1answer
79 views

Bent rear derailleur (RD-5701)?

I was cleaning the chain on my CX bike today, and while cleaning the rear derailleur I noticed the following: When moving the cage from one extreme to another, the cage body will rub against the ...
2
votes
1answer
106 views

Run without a derailleur hanger?

I'm building a bike on an old aluminium frame that is missing the rear derailleur hanger. I'm putting an IGH on it, so I don't need to use the hanger, but the dropout seems too thin without it. Can I ...
1
vote
4answers
81 views

Individual cassette gears and swap a 10 speed for a 9 speed

Why can't we buy individual cassette gears? Probably 90% of my riding is on just 4 to 5 of the gears on the cassette. The rest of the gears are used much less. I have a X0 SRAM derailleur 9 speed set ...
0
votes
4answers
259 views

Derailleur/Gears Locks Up/ Freezes Up/Stalls

Hey guys I have a specialized mtb with the old oval chainrings and lately it's been locking up. When I start pedalling "hard" or faster the crank stops turning and then jumps forward a bit and ...
2
votes
1answer
75 views

possible upgrades for merida speeder 200

I have a Speeder 200. (2015). I want to upgrade it's rear derailleur, my problem is I am unsatisfied with its performance. (it is a Tiagra with 9 speed at the moment). If i replace it with a 105 (9 ...
2
votes
1answer
92 views

Cannondale Trail SL 3 component upgrades

I have a 2013 cannondale trail SL 3 and some parts have been worn and look beat up so I'm planning to replace them. I was wondering if I can use a 10-speed rear derailleur on a 9 speed cassette and ...
7
votes
2answers
196 views

Is there excessive lubricant on my new rear derailleur?

I just received a new Shimano Deore rear derailleur, which has large gobs of lubricant in two locations (one clearly visible in photo). This seems excessive. Do I leave it, or are they expecting you ...
6
votes
1answer
124 views

Why are there so many types of mech hanger?

I have just stripped the threads on my mech hanger and I'm in the process of buying a new one. There are so many different types, even for one manufacturer, I was wondering what the reason for this is?...
5
votes
1answer
136 views

How to install the cable for this rear derailleur?

For two months so far I'm trying to fix my bike. I bought a used bike and the shifting was not good. So I bought new cables and tried to make the rear derailleur work, but without any kind of luck. ...
2
votes
2answers
493 views

Is a Shimano Dura-Ace 7800 rear derailleur compatible with a Dura-Ace 7900 11-27 cassette?

Is the Shimano Dura-Ace 7900 10 speed cassette with a ratio of 11-27 cassette compatible with a dura-ace 7800 rear derailleur? Some people say its fine but more important to me is what Shimano says ...
2
votes
2answers
723 views

Does the Shimano Tourney TX rear derailleur support an 8 speed cassette?

I would like to upgrade to 8 speed. Does the Shimano Tourney TX rear derailleur support an 8-speed cassette.
2
votes
1answer
210 views

Shimano SIS Rear derailleur fixing problem

I have the shimano sis rear derailleur which needs fixing. I took it off the wheel while I was fixing the puncture in the rear wheel. Now I am not able to fix it. It keeps coming off when I am ...
2
votes
1answer
124 views

Changing Crankset on a bicycle

I have a fixed gear BTwin My Bike White. I need to upgrade but the resale value is too low for it. So I was thinking of adding gears to it which might click the real deal for me. Can I convert it ...
2
votes
2answers
72 views

B-screw hitting derailleur hanger

I have a Schwinn Super Sport circa 1966, that came to me as a single speed, so I have never seen a derailleur on it. When I put this SunTour derailleur on it - mid 70s I think, came off a Peugeot - ...
2
votes
2answers
528 views

Bike pedals turning when coasting (not a fixed gear)

My pedals are moving when I'm coasting, and if I try to stop them the upper segment of the chain gets really loose, and the rear derailleur does this thing, where it gets almost horizontal, and then ...
2
votes
1answer
402 views

Shimano 105 5800 mech compatibilty with 5700 shifters

I have purchased a Shimano 105 5800 11 Speed Cassette 11-32, 116 link chain (CN- HG600-11) and longer-caged 'GS' rear derailleur (RD-5800-GS) to replace my original 105 10 speed 5700 series mech. Can ...
2
votes
3answers
153 views

Jockey pulley (upper jockey wheel) suddenly not engaging with the chain when in the three largest (easiest) cogs on the big ring only

The gears work fine across the whole cassette on the inner ring but all of a sudden the chain has stopped engaging with the upper jockey wheel when in the big ring and three largest (easiest) ...