Mechanism to move the chain from one sprocket to another.

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301 views

I am 6ft and riding a firefox kompac. My speed never crosses 18kmph

What is the difference of having larger no of teeth in the front derailleur? does it help in speed and distance covered? Suggest a good hybrid on which I can achieve faster speeds? My budget is $700.
9
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3answers
24k views

How do I adjust my rear derailleur (Shimano SIS) when it is only slightly out?

It has been a while since I had my bike serviced and the gears are sometimes slightly out of perfect alignment. This results in the occasional mis-shift. I also think the change in seasons have ...
2
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4answers
8k views

Determining front & rear derailleur compatibility

I have a 2009 Kona Dew and I'm just wondering how to figure out what front and rear derailleurs are compatible with my bike. Do I just have to find a matching Shimano part that fits 8-speed gearsets? ...
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2answers
2k views

Why does my chain slip off the chainring when cruising or back pedalling?

My bike is a little more then a year old (although I do put a lot of miles on it, about 12 miles a day), this problem seems to have started about a week ago. It's a 7 speed Avilon Next (a cheap brand ...
9
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2answers
2k views

Is it normal for my derailleur cables to cross over on the down tube?

I've just picked myself up a Specialized Allez Sport 2014 road bike from Evans Cycles (UK). I test rode the bike and I'm happy with the bike, but when I got home, and flipped the bike over to make a ...
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5answers
61k 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 ...
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1answer
108 views

Front Derailleur Tuning Question

I've installed new front derailleur (Shimano Tiagra) on my bike and I spent embarrassingly lots of time trying to adjust it. Yet still I think I have a problem with it. For me it seems too tense. You ...
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3answers
230 views

Rear shifting - Unable to shift to toughest gear

I was adjusting my rear shifting following the advice in this video: It was when I took off the wire tension and screwed the high limit all the way out that the chain ...
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0answers
26 views

How often should I lube with Pedros Ice Wax? [duplicate]

I'm a usa cycling road racer. I just got a recommended lube Pedros Ice Wax. I ride about 100 miles a week. How often should I lube my chain with it and how often should I clean it?
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6answers
3k views

Mechanic says not to use top three/bottom two gears or the chain will throw

I just bought a BTwin Fit 5, all stock, fresh from the distributor, Decathlon. Took it for light pacing at the store and things seemed OK. About 100 metres out the door, I shift up to the top end of ...
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2answers
230 views

Derailleur twitching in low gears

I had a mild spill today on my new bike, which put the (Tiagra) derailleur cage a little bit out of line. With some bending and eyeballing, I got the two jockey wheels lined up 'almost' perfectly ...
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3answers
18k views

Determining which derailleur hanger is compatible with a frame

When your derailleur hanger needs replacing, is there a good resource for matching frames to hangers? Mine was recently bent, so I had to dig through some websites and compare pictures of the hangers ...
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2answers
534 views

Upgrading rear derailer and cassette

I recently got what most people would consider a cheap and toy road bike as a gift. It came with very primitive RD and cassette (shimano SIS? I think). I enjoy upgrading my stuff, my question is, ...
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2answers
368 views

Is it normal for the chain to slip in an 'extreme' gear?

My bike's recently been in for a service so afterwards I checked that all the gears are shifting and working properly. As part of my testing I put some power through the cranks in the photographed ...
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3answers
16k views

Front derailleur won't spring back to lower gears

The front derailleur on my mountainbike sometimes gets stuck in high gears. When this happens and I want to shift down I can nudge it a bit with my foot and it will spring back to the lower gear. I ...
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2answers
380 views

How much does number of gears matter for a front derailleur?

I need a low clamp 2x10 front derailleur. As it turns out to be a challenge to find locally, I begin to wonder How important is the rear gear specification? What is I get 2x9? How important is ...
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1answer
85 views

My chain came out of dérailleur frame, but gap seems too small, am I misunderstanding something?

So the chain came off my bike on the way to work this morning, but when I tried to put it back on, it seems like it has also come out of the dérailleur frame, but the gap where it seems to have come ...
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1answer
157 views

Problem with changing to high gear on the front derailleur on my new Bianchi Spillo Rubino Altus Rigid

It's a 24 speed bike with 3 gears on front (Cranks PROWHEEL 48/38/28T) and 8 on the rear. I rode it today and when I was moving the front gear to 3 to move the chain to the large ring I have to press ...
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2answers
163 views

Is wear on this derailleur pic normal?

I have had issues with noisey drivetrain and inconsistent shifting despite indexing adjustment. I have found wear on the top jockey wheel cage, is this normal or should the chain not rub here? Does ...
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2answers
679 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 ...
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1answer
249 views
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1answer
1k 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 ...
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2answers
209 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 ...
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1answer
237 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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1answer
122 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 ...
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1answer
224 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 ...
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1answer
436 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 ...
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1answer
250 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 ...
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3answers
1k 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 ...
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3answers
279 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 ...
2
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1answer
208 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
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4answers
688 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 ...
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0answers
80 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 ...
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1answer
131 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 ...
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3answers
567 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 ...
0
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1answer
597 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 ...
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3answers
526 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 ...
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1answer
587 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 ...
3
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2answers
2k 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 ...
3
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3answers
2k 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
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1answer
1k 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 ...
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2answers
158 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 ...
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1answer
2k 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 ...
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1answer
165 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
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3answers
2k 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 ...
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1answer
81 views

di2 front derailleur braze on for 105?

can di2 front derailleur braze on adapter be used to mount 105 derailleur?
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2answers
5k 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 ...
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1answer
209 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
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1answer
4k 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
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2answers
656 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 ...