Mechanism to move the chain from one sprocket to another.

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2
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1answer
63 views

Can I replace my Shimano RX 100 with a Campagnolo group?

I just purchased a Concorde Mistral with Columbus Gara tubing and would like to transfer my Campagnolo group from an SLX frame that is too big. The Concorde frame has a front derailleur mounting ...
1
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2answers
56 views

Shimano FD-M191 replaced with Shimano FD-M590

just replaced Shimano front derailleur (FD-M191) to FD-M590. And problem appears, on smallest cog chain rubs lightly on left side, and on biggest cog on right side. Just can't lower derailleur more ...
0
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1answer
52 views
3
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1answer
117 views

Brand New bike, chain slips into spokes on first gear

I just bought my first bike as an adult with the intents of biking to work. This bike is brand new, is the Schwinn Admiral 700c from Walmart. I get it home and whenever I shift into first gear the ...
5
votes
3answers
187 views

How can you identify if a Shimano rear derailleur is medium or long cage?

I have a 2013 Shimano XT rear derailleur. It is part of a 2x10 drivetrain. How can I find out if it is a medium or a long cage one? The picture below shows the derailleur.
3
votes
1answer
94 views

Trek 1.1 Derailleur Hanger

I've got a 2011 Trek 1.1, and my derailleur hanger broke in a crash a few weeks ago. I've tried both a number 5 and number 6 hanger, which are what WheelsMFG has listed, but neither seem to fit. There ...
1
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2answers
76 views

Adjusting disk brake positions

I recently got a new bike (below). It's rather latest technology for me. I got it assembled from a supermarket, but had to do almost all the adjustments myself. I don't know what I did wrong with ...
1
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0answers
44 views

How can I fix my rear derailleur's B-tension adjustment?

I've noticed that my rear derailleur (Ultegra 6700) will not return to where I've set the B-tension adjustment. Pulling it away from the hanger means it will just stick there, or maybe move back a ...
1
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1answer
85 views

Chain Slipping?

I am not the most knowledgeable when it comes to bikes so please bear with me. I have a Claud Butler and after fixing a puncture I decided to ride it. As I was riding, I could hear a sort of rattling ...
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2answers
103 views

chain getting stuck between chainrings

I have an old Cannondale road bike with Suntour shifters. When I shift from the front middle ring to the small inner-most ring, the chain falls into the gap and binds tightly between the two rings. ...
1
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1answer
68 views

Chain brushes derailleur

I just got my ever first road bike, Revenio 3.0. I'm so excited. Already got my ever first road bike injury as well - those damn cleats are hard to unclip, springs on those shiny new pedals are too ...
3
votes
1answer
60 views

Stuck front derailleur

On a ride recently my front derailleur seems to have gotten jammed. The levers wouldn't index and the derailleur itself wouldn't budge. After continuing the ride for a bit, the problem went away on ...
2
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1answer
103 views

Can I use a Suntour Cyclone GT Rear Derailleur for a 10 speed Campagnolo cassette?

I'm building up a road bike and have a wheelset with a rear hub that has a Campagnolo Chorus 10 speed cassette. The front derailleur will be a triple and I'm looking into the possibility of using a ...
1
vote
1answer
83 views

Upgrading cassette - what do I need to be aware of?

I'm looking to replace my rear cassette and reduce the tooth count between the sprockets in order to make my gear changes less dramatic. I currently have a 11/26 9 speed SRAM cassette, and a stock ...
1
vote
3answers
168 views

Can I replace the front front derailleur with chain guide?

My front derailleur (Shimano LX T670 / 34.9mm) has been stuck on the highest gear for a couple of weeks now which has got me thinking about how little I use it. To save weight could I replace my front ...
1
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3answers
93 views

Can I modify the gearing on a 2009 Jamis Aurora?

I have a stock 2009 Jamis Aurora. I'm looking to modify my gear set-up to make climbing hills with large loads a little easier on my knees, as I constantly find myself wishing I had one or more low ...
1
vote
1answer
111 views

Front derailleur adjustment

I need some advice on properly adjusting the front derailleur (shimano -tourney) of my bike. I did watch youtube videos and stuff on the internet but was not able to adjust it properly. When I ...
3
votes
4answers
271 views

Password protect Shimano Di2?

I'm working on a bike with Shimano Di2 (electronic shifting with servo motors in the derailleurs), and I use the e-tube software on a laptop to configure it. What I would like to do is be able to ...
0
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0answers
38 views

Is this FD compatible with this crankset: 2 teeth too litle

I am a proud owner of this guy. The crankset is SRAM S1200, 36/22 and the FD is SRAM X7, direct mount. However, the cage on the FD broke, and I ordered this item in a hurry. 1) Dyna-Sys 10-speed ...
2
votes
1answer
97 views

Will I snap my derailleur? (too large front chainwheel)

I have an old racer (1994 Specialized Epic Allez - lugged carbon) that's in pretty good shape. I brought it to an LBS that's got a pretty good reputation and that I've used before, to change the chain ...
1
vote
3answers
122 views

How do I stop my rear derailleur from rubbing against my chassis?

I have a fairly new Shimano rear derailleur on a cheap department store MTB a friend gave me. Recently the derailleur (particularly the jockey wheels) have started to rub against the chassis in high ...
4
votes
5answers
3k views

Rear derailleur shifting poorly, skipping gears

I've got a Shimano Sora on a 8-gear cassette, and have odd behavior and skipping, shifting under stress. This started with a trip to the mechanic for a tune up which replaced the chain. I had some ...
0
votes
1answer
100 views

Replaced faulty Shimano twist shifter but front derailleur still won't catch 3rd

I have one of the ubiquitous Wal-Mart-sourced Chinese Kent bikes, badged as a "GMC Denali." It came with the Shimano RS41 3x7 twist shifters. The front shifter got to where it would not physically ...
3
votes
3answers
151 views

Can Shimano 600 front derailleur handle 3 chain wheels?

I have a 48-38-28 chainwheel and I wonder if Shimano 600EX Arabesque has enough leeway to accommodate it. If you know another derailleur from the same era that could do it that would be also useful to ...
26
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7answers
6k views

What's the efficiency of hub gears compared to derailleurs?

What's the efficiency of hub gears compared to derailleurs. I know that hub gears are not as efficient, a part from being heavier, how much will I loose in performance if I use hub gear?
1
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1answer
203 views

derailleur P-screw/B-screw does absolutely nothing

I know dérailleur adjustments are frustrating, but this is the 4th day i'm working on this... i stop working just before the rage kicks in and leave everything to continue another day :) The problem ...
4
votes
2answers
2k views

Is it practical to replace two sprockets on a cassette?

My bike has 53/39T chainrings and a cassette with 12,13,14,15,17,19,21,23,25 sprockets, but I like to ride up steep mountain roads. Is it possible (without great expense) to replace two sprockets to ...
22
votes
4answers
27k views

What are the pros and cons of internal gears?

I've had my hybrid 24-speed for a bit over 3 years now, and just last weekend, when looking for a bike for my wife, discovered internal gears. Suffice to say it blew my mind when I saw 7-speed ...
4
votes
2answers
30k views

How to calculate the capacity of a rear derailleur

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 ...
3
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2answers
163 views

When to replace rear derailleurs

What is the typical life cycle of mid-range rear derailleurs assuming no accidents? More precisely, what's the average mileage after which it's better to replace it rather than doing tuning all the ...
2
votes
3answers
315 views

How to protect rear derailleur while mountain biking?

I am a college students, and I live right next to an amazing rocky area (picture below), I bike every day, and while I am getting much better and more confident I still take a pretty hard fall every ...
2
votes
1answer
381 views

Shimano SLX Rear Derailleur with Microshift bar end Shifters

I need to replace my rear Shimano Deore derailleur since it got mangled up in an accident. I'm thinking of replacing it with a Shimano America RD-M662 SLX 9-Speed Derailleur. The bike I have is a 2013 ...
1
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2answers
70 views

Looking for a narrow-cage 16T capacity FD

I'm putting a 46x30 chainring with a pretty narrow tread on a frame. On the advice of my LBS I got a Sun XCD double FD, but I'm starting to think it's not right for this application. When I have the ...
1
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0answers
85 views

Play in Jockey wheels Sram X7 rear derailleur

I have an SRAM x7 rear derailleur only been using it a few months (through the rain) and the jockey wheels seem in a bad way. There's a lot of side to side play in them and the teeth look sharp when i ...
1
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1answer
635 views

Shimano RD TX55 Tourney TX 6/7 Speed Compatibility

I currently have a 7 speed bicycle, and recently changed my rear derailleur to a Shimano RD TX55 Tourney TX for a 6/7 speed compatibility. My shifter is Shimano Rapidfire for 7-speed. The current ...
0
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1answer
77 views

how to adjust the derailer - apart from the L/H limiting screws

Pardon my newb terminology. My bike's chain will not stay on the H gear (the big ring) The front derailleur will not allow it. I have loosened the limiter screw out to it's maximum and, still, no ...
3
votes
3answers
610 views

SRAM Rival front derailleur throws chain to the outside, even after professional adjustment

TL;DR: if you have a SRAM Rival front derailleur I'd love to know if yours looks "funny" like mine does--it's described in bold. I have a SRAM Rival groupset (from late 2011), including front ...
2
votes
1answer
72 views

di2 front derailleur braze on for 105?

can di2 front derailleur braze on adapter be used to mount 105 derailleur?
4
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2answers
2k views

What's a good, reliable mountain bike drivetrain (1x10?)

I'm thinking about switching my Salsa El Mariachi 29er mountain bike from singlespeed to gears. I love the reliability and simplicity of the singlespeed, but I've been doing more rides that involve ...
1
vote
1answer
128 views

Did the Giant Trinity A1 come with a derailleur hanger?

I am putting a bike together and have it all apart but don't see the derailleur hanger anywhere. Did I lose it or did the bike not come with it? If it didn't come with it, why not? Thanks.
3
votes
1answer
613 views

Can I run 2x10 XT Shifters on a flatbar road bike with 105 10 speed STI components?

I want to run 2x10 XT shifters on a flatbar but still want use the 10 speed 105 components of the road bike would there be any problems?
2
votes
2answers
154 views

Adjusting a triple front derailleur after removing largest chainring

I have a touring/commuting bike with full Shimano 105 -- triple in the front. I just removed the outer (largest) chainring and replaced it with a chain guard. It's easy enough to crank on the limit ...
3
votes
4answers
539 views

Can I change a 3speed sturmey archer to a derailleur system?

Might be daft but can I change an internal hub for a derailleur option. I have an old bike which is slow but I do love it. I want to upgrade my running gear but the "chassis" is still tip-top. I don't ...
5
votes
1answer
212 views

Why do some people leave the chain sitting on the smaller sprocket when the bike is not used for a while?

I guess it is something related to the springs in the derailleur. But is it that important?
1
vote
1answer
932 views

What are my options for replacing/upgrading my MTB front mech?

I recently damaged my front mech, a Shimano Acera, top swing, bottom pull, triple chainring. The rear cassette is 8-speed. So I need to replace this front mech. The original Shimano Acera is probably ...
2
votes
2answers
177 views

Chain repeatedly tries to click into place without gear change

While pedalling, every 10 seconds or so, the chain on my bike makes the sound it makes during a gear shift - it "clicks", as if it's clicking into place in the new gear. But there is no gear shift ...
2
votes
1answer
201 views

Can I use friction shifters with a clutch style rear derailleur?

Can I use friction shifters with a clutch style rear derailleur like the 2014 Shimano Deore M615 Shadow Plus? Or does this put extra tension on the shift cable that will cause slips with a friction ...
3
votes
2answers
407 views

(Automatic Bike Project) amount of torque required to change gears?

I am planning to build an electronically controlled automatic bike transmission for my senior design project. I'm personally more of an electrical guy, so dealing with the mechanics is somewhat new to ...
11
votes
1answer
6k views

Chart for bicycle component quality?

I'm not very familiar with all the different component groups available and wondered if there's a chart that ranks their quality (or price). So I'd know that Shimano 105 is the same level as SRAM ...
6
votes
4answers
198 views

Electronic shifters

I have been reading alot about the electronic shifters that are out now, specifically the ones on TREK bikes. I was wondering if they are worth the price, and more importantly how do they perform.