derailleur's questions - English 1answer

433 derailleur questions.

After I changed shift cables, I have 4 positions on my front derailleur. WTF? I have a double chainring. I have a trim position as well, but after shifting to the big chainring, I can still move the ...

I want to upgrade my mid 80s road bike from a 50 tooth to a 53. But the BCD of the big triple chainring is some rare standard that it costs less to buy a whole (used) crank instead. And of course this ...

I am looking at purchasing a stationary trainer that will be shared with my wife and would prefer to do a wheel off trainer. Both of our bikes have a 11-28T cassette. So, theoretically, if the ...

I've damaged the rear derailleur on my bike, and it needs to be replaced. I don't really have an LBS. I've looked around online, but I can't seem to find a correct replacement. I should clarify that ...

My rear derailleur took a knock from a fall, and the entire shifting range moved inwards by about one sprocket width. I suspect, but am not sure, that the mech hanger got slightly bent (could be ...

Ever since I got my bike (Surly Long Haul Trucker), it has been prone to shifting on its own. This is almost guaranteed to happen when I stand up on the pedals, and happens regularly when sitting as ...

Extra images I'm 99% certain the noise is coming off one or both of the derailleur pulleys, but not sure if it's to be expected or if it's irregular and something that should be fixed? Edit Just ...

A couple weeks ago I rode around Crater Lake, a 35 mile ride with over 4500 feet of cumulative elevation gain – the sort of ride you really want functional gears for. The night before my rear ...

I'm building a touring bike and was interesting in using STI shifters, just wondering if this setup will work. Shimano Sora 3500 STI Triple 3x9 Speed Road Lever Set with Shimano Deore M590 Top Swing ...

Found my old mountainbike(steelframe) and i saw that its Rear Deraileur was worn out, was wondering would i be able to install a modern deraileur on a bike frame like this? I'd also like to ask if ...

I was reading an article about the CeramicSpeed’s Driven concept and, while not interested in the efficiency part, the chainless system reminded me of something I was wondering for some time: are ...

Two years ago I build a bike (flat bar) with SRAM 1x11. Around a month ago the rear-derailleur broke (guide pulley broke). I bought a new rear derailleur: Shimano 105 RD-5800-GS. After installation ...

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 ...

I am trying to fix the front shifting on a bike (not my own, family member). The original reported problems were inability to shift into 3 (largest), combined with a tendency for the chain to come off ...

I really don't like indexed shifters, at least on the front. They're harder to adjust, more sensitive to cable stretching, and limit the number of gear combinations you can use (because you can't ...

Bicycles are getting evolved with good technologies or methodologies as the period changes. Now, this one bike, so called string bike has been introduced, which doesn't have chain, derailleur but ...

I am building an ebike on a road frame. I am using a Bafang G310 rear hub motor & 8 Speed Shimano cassette. I plan to use a long MTB rear 8 spd derailleur (either Acera or Alivio). For my crankset ...

I have Shimano Deore RD M591 Rear Derailleur (http://www.jensonusa.com/Shimano-Deore-M591-9-SPD-Rear-Derailleur) that I am having trouble dialing in shifting when used with Tiagra 4700 2x10 STI ...

I have a 1966 Schwinn Super Sport that I bought without a front derailer. The seat tube clamp diameter (i.e., the diameter measured out outside the seat tube, where a derailer would go) is ~29.6mm. ...

I was thinking about buying Shimano Deore groupset to upgrade my ride, checking both older M610s and newer M6000s. The hitch is I want 2x10 set commuter flavor. That means narrow ratio cassette, like ...

Hi All! Please help with advice. I was doing some regular brush cleaning on my new Diamond Mission Pro bike that I purchased off the diamondback website (less then month old). A little bolt near rear ...

After reading about the superiority of the rare Simplex SLJ6600 derailleur, I want to know if it will be an easy swap on my 1980 Motobecane Le Champion, which came with and has the Campagnolo Nuovo ...

I'm considering replacing the Simplex SX410 derailleur for a Campy Nuovo Record on my early 80s Mercier (6-speed cassette). Reason being that there has been for several years now a problem shifting ...

Looking to buy a Salsa-Cutthroat equipped with SRAM Rival brifters; a 1X drive train (11-42t rear cassette RAM Rival long cage deraileur); SRAM GX 1000 crankset; and SRAM Rival Hydraulic Disc Brakes. ...

Here is a sample Shimano FD. What does Maximum capacity: 22 teeth mean? Why are Top gear teeth constrained to 44/48T? Is there anything wrong with 46? What is Cable Routing: dual-pull type? And most ...

I recently bought a Tandem from the 90's and now trying to adjust the derailleurs. But, no matter what I do, I don't manage to properly set up the 3-way front derailleur. It either properly shifts ...

I am adjusting my rear derailleur indexing. It seems impossible to find the correct tightness. When I tighten the tension with the tension barrel adjuster, I have one of two problems: either it is too ...

I've heard that it's possible to run the same derailleur with different shifters to get a different number of gears. I would like to know what the limits are to this idea. I want to keep my Shimano ...

I was working on my bike and was about to add some more tension to my SLX clutch mech. While trying to remove the clutch cover I accidentally rounded off the bolts, so I have no way of getting the ...

I have an old Trek from the early 80's, the serial number says its either a 610, 613, or 614. A lot of the parts are getting old and I'd like to replace a lot of them. One part that I an not sure on ...

I'm trying to understand if its possible to fit a 9 speed 11-50T cassette (found one on Ali) on my MTB. The plan is to go 1X9. The problem is that I can't seem to understand the if a specific ...

I have an older bike (between 10 and 15 years old), which has a alivio derailleur. It's an 8 speed, and I just replaced the cassette, chain and crank set. I noticed that there was a large amount of ...

I use my bike for commuting, and so my knowledge of bikes is enough to make to work and back. I have a trek 4500 mb. I purchased it used, and from the very first day I have had this issue where the ...

This has been bugging me for a while. The Ultegra has no visible wear. The chain has no measurable stretch. The Deore is silent even when dirty and not oiled. The Ultegra is much noisier when freshly ...

Has anyone ever designed or manufactured an automatic transmission (or automatic shifter?) for cycling? I imagine such a device would automatically change the gearing to allow the rider to maintain ...

I have a RD 7900 derailleur and a standard 105 28t casette. After replacing my wheelset I observed after I put my bike on the workstand that the chain is not sliding in perfectly into the casette ...

I'm looking at XTR Di2, and it seems the rear derailleur comes in 2 variations: medium cage and long cage. What are the two sizes for? Do they match different types of cassettes? What kind would I ...

Is Shimano RD-5800 rear derailleur compatible with a 7 speed cassette?

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?...

So I had recently solved some issues I was having thanks to the community. I re-tuned my bike on a suspended mount and everytning looks great. On the ground, all of the gears work smoothly except for ...

It's easy to calculate what capacity of a rear derailleur will be needed based on the size of the big and small chainring and the big and small cog. What about the converse question, how to calculate ...

I am in the process of building up a Cannondale CAAD4 Saeco team frame using Dura Ace 7700 components from the same era of the frame. I am learning as I go along, so I apologize if these questions ...

So I was tuning my newly acquired bike today and working with all 8 gears on the rear derailleur. I managed to properly set the high limit screw as well as cable tension so all gears shift smoothly ...

I have a Psycle Werks downhill-bike and the derailleur got bent and cracked I need it to get replaced does anyone know or have any suggestions on where I can get a new one or what I should do?

I would like to go touring using my narrowide chainring, but I would like as well to put a smaller chainring (the infamous Grannie) so that I could have it as a last resort in case of really hard ...

Do you put anything under the clamp on the carbon to protect it? In the past I've tightened brakes on MTB handle bars to much and wrecked them so I'm wondering.

I have a bike with an 8-speed cassette and would like to switch to 9-speed cassette. Can I keep my rear derailleur? which is a Shimano Alivio one? I understand the indexing might mess up this, but I ...

My cheap bike that I use to commute has been taking a lot of punishment (mostly from salt that's been used to melt the snow). I've been thinking about changing the rear derailleur (maybe not right now,...

While working on my bikes (a road bike with Ultegra 6600 groupset and a MTB with Shimano deore XT M8000) I noticed that the upper pivot on the Deore does not freely rotate. Looking at the exploded ...

I need a new rear derailleur for my Claud Butler Urban 200. I have looked at the old one and can see it is a Shimano Tourney RD TX 80 -7. I have found these quite hard to get and I am wondering if ...

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