All Questions
Tagged with gears derailleur
100 questions
0
votes
1
answer
70
views
SOMEONE HELP PLEASE:( [closed]
I'm getting a new bike and i'm wondering if a Shimano TX50 front derailleur is good enough and will do the job or should I get another bike which has an acera, FD-M390 front derailleur. Thanks in ...
9
votes
1
answer
13k
views
Effects of jockey wheel sizes & types
I'm wondering about the variations in jockey wheels / derailleur pulleys and what differences they make; There's a lot of conflicting and confusing information out there, so I'm after some general ...
- 201
3
votes
3
answers
1k
views
Can I put a lower geared cassette on my bike?
I bought a bike recently that has a 34 front 28 rear gear ratio. It is an Elfama E2500, which is a Korean brand I believe. It has a Shimano Claris (which is rated for up to 32 teeth) rear derailleur ...
- 133
0
votes
0
answers
59
views
Gear change sticking only on specific changes - cable issue? [duplicate]
I'm riding a hybrid with 48/36/26 chain ring and 9 speed 11-32 cassette.
When I change up OR down at a specific point the shift is slow and doesn't always engage. On the 48 this is between the 21 ...
- 527
1
vote
1
answer
1k
views
Do all 10-speed chains fit 3x10?
I'm wondering if all 10-speed chains fit to 3x10. A lot of webshops say that the chain is "for road bikes 2x10" or something like that. Or nothing at all.
The chain I have right now (Shinano CN HG-54) ...
- 113
3
votes
1
answer
684
views
How to change front gearing
So I have a bicycle that has a single front gear, but many back gears with a derailleur. I am wondering if I change the size of the front gear (like significantly), meaning if I get a bigger front ...
- 195
3
votes
2
answers
9k
views
Cable tension for Shimano 105 front derailleur is very tight
I just got a Merida Scultura 400.
On the biggest chainring, there's rubbing on the outside of the front derailleur cage. The only way that I can lower this is by tightening the cable by a lot. Is this ...
- 61
1
vote
1
answer
513
views
Front derailleur takes 6 clicks to shift gears, instead of 3 [duplicate]
I've just stripped all cables and chain from a badly kept bicycle and replaced them.
I've correctly adjusted the rear derailleur and it works great.
However, front derailleur which only has 3 gears ...
- 113
3
votes
1
answer
1k
views
Campagnolo Cambio Corsa primitive derailleur -- can it be recreated?
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 ...
- 593
0
votes
4
answers
7k
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 ...
- 593
4
votes
1
answer
344
views
Using 9 speed Deore front shifter with 10 speed Ultegra front Deraileur
I am trying to build a bike out of all the spare parts I have in my garage. I found a 3x9 Deore front shifter, 3x10 Ultegra front d and crankset. Would they work together?
By the way, I am building a ...
- 41
5
votes
2
answers
2k
views
Problems with front derailleur shifting on an inexpensive bike
I bought a cheapish bike (Nakamura) couple of years ago, and it generally serves me well. Main problem that I have is that shifting gears, especially front gears often gets out of tune. After only a ...
- 153
2
votes
1
answer
252
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 ...
1
vote
2
answers
920
views
Chain rubbing on new derailleur and crankset
My bicycle is a Rockrider 520. I have replaced my front derailleur with Shimano Acera FD-M390 and my crankset with Shimano Acera FC-M391. But chain is rubbing inside of FD even when FD cable is not ...
- 123
4
votes
3
answers
4k
views
Why is my bike slipping gears?
I have a 1997 Gary Fisher Tassajara that got a complete overhaul and tune-up at a bike shop a year ago. (to the tune of $180, but some of that was new tires- I'm the original owner) I ride between 4 ...
- 41
3
votes
4
answers
5k
views
Road Brifters with MTB Derailleurs
I've just bought a lovely Surly touring frame and I simply stuck all of my mountain bike components on it.
That means I've retained a flat handlebar. I'd really like to stick drop bars on though and ...
- 31
3
votes
2
answers
2k
views
Shimano Claris shifter double/triple shifting up (when moving to smaller, harder cogs) on the rear derailleur
Although my rear derailleur is properly indexed it's suddenly started to double or even triple shift on an upshift - i.e. when moving to harder, smaller cogs on the cassette.
This happens whether I'm ...
- 53
1
vote
2
answers
2k
views
Bent front-derailleur
I biked to school today with my bike in perfect condition. Locked it up and went to class. When I went to my bike a couple hours later, the derailleur was bent out of position. My bike's front gear ...
- 113
3
votes
2
answers
7k
views
Adding front derailleur vs upgrading the rear one on a (ladies) bicycle
What I want to achieve is going from having some gears to having more gears. To be more specific I would like to get more gear ratio range in both low and high end.
First of all I tried to look for ...
- 151
1
vote
3
answers
8k
views
Can't shift to gear one or two
I had an issue where every time I put my bike in gear 3, it would just keep "skipping". By this I mean that it wouldn't stay in gear 3; the chain would go onto it, then fall onto gear 4, then go back ...
- 121
0
votes
1
answer
106
views
The spring in my front dérailleur is jammed
My front derailleur is jammed by dirt (grease + fine dust), because of this the gear doesn't shift perfectly and chain is thrown off the cog. The spring is a bit unreachable because the derailleur arm ...
user14633
2
votes
3
answers
4k
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 ...
- 123
1
vote
2
answers
4k
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, ...
- 65
2
votes
2
answers
1k
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 ...
- 977
1
vote
3
answers
689
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 ...
- 41
0
votes
1
answer
293
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 ...
- 113
3
votes
2
answers
531
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 ...
- 151
7
votes
4
answers
376
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.
- 71
5
votes
2
answers
3k
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 ...
- 153
1
vote
1
answer
2k
views
How long does a shifter, rear mech and front mech last?
I am talking about absolutely dirt cheap components which are non-branded. In terms of number of kilometres how long do they last? The bicycle is ridden on city and country roads and maintained ...
- 19
3
votes
3
answers
18k
views
Slippage Under Load [New Bike]
I got a new bike a three or four weeks ago and have noticed the issue arise this last week or two.
When I'm going up a hill (or any heavy load), my gears will slip. I don't think it's moving gears,...
- 133
3
votes
1
answer
4k
views
Can't change into the largest sprocket on rear derailleur
I bought my first road bike recently, and I've noticed I can't change into the largest cog/sprocket on the rear derailleur because when I pull the shifter the chain is pushed into the side of the ...
- 277
1
vote
1
answer
27k
views
What tension should the front derailleur cable be when setting it up?
I'm attempting to setup my front derailleur. I've slackened off the cable, adjusted the L screw so the derailleur just clears the chain. What position should the adjusting barrel on the handles be set ...
- 113
0
votes
1
answer
4k
views
Slow switching up higher gears
I have a fairly new MTB and I'm currently trying to tune the gears. Currently I can change down gears pretty smoothly I.e. 6 > 5 > 4 etc but going up the gears is slow for the chain to switch cogs. ...
4
votes
1
answer
917
views
Direct Mount with top and bottom swing?
I want to buy a new frame that supports Direct Mount. Now I read that Bottom Swing is preferable for hardtails. At the same time, it was also mentioned that Bottom Swing is mounted higher onto the ...
- 501
6
votes
3
answers
3k
views
How can I increase the highest gear ratio?
I am looking for some higher cog front gears for an old bike I am considering. I've been away from it for some time and don't know the current number of cogs on the front ring, but I am looking to ...
- 61
2
votes
3
answers
15k
views
Gear up-shift not smooth
When I am pedaling hard and shift to a larger sprocket, the shift is not smooth or sometimes doesn't happen at all. Sometimes even double up-shifts don't work. There is no problem shifting when I test ...
- 149
6
votes
3
answers
2k
views
Different Gear Type when there's no Front Derailleur?
I have a 7 speed Jamis Boss Cruiser, 7 gears in back and one up front. I've been using it fine for several months now. Lately, the chain is coming off of the single front gear, usually after stopping ...
- 163
1
vote
3
answers
568
views
Refitting Cable to Rear Derailleur
Whilst riding recently the cable slipped from the clamp on the rear derailleur.
I'm attempting to affect repairs by re-clamping the cable. However by pulling the cable tight I have lost the bottom 2 ...
- 121
12
votes
2
answers
23k
views
Moving from Shimano 9- to Shimano 10- speed
I'm thinking of changing the 9-speed Tiagra rear mech on one of my (road) bikes to something, still Shimano, but 10-speed.
The obvious replacements I'll need are cassette, right-shifter and chain. But ...
- 9,773
7
votes
4
answers
3k
views
Comparing gear ratios on different bike types
How can I compare gear ratios on different wheel sizes? How can I compare gear ratios on MTB with tracking bikes with bigger wheels? How can I compare gear ratios with gear hubs?
- 233
1
vote
2
answers
252
views
Unable to change from 14th to 7th
I've got a bike that I have had for about 8 weeks and it has already been back to be serviced twice. It's just returned from the second service and I've noticed that it is not shifting from 14th to ...
- 119
8
votes
4
answers
39k
views
Can I fit a cassette with a larger range with my Shimano Tiagra 10-speed ( GS-4600) derailleur?
I'm currently running a 2x10 shimano tiagra 10-speed drivetrain with a 50/34 compact crankset, a 12-30 rear cassette, and a Shimano Tiagra GS-4600 derailleur (that's medium cage aka road long cage) on ...
- 18.3k
6
votes
3
answers
8k
views
Why does my bike stick in low gears?
When I change into a low gear (i.e. onto a bigger cog) on my back cog all is fine. However, when I later change up again the chain sticks on the larger cog. I commute about 10 miles a day and this has ...
- 163
8
votes
2
answers
6k
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 ...
- 7,165
6
votes
1
answer
2k
views
Is my front derailleur angled straight?
I am attempting to adjust my front gears and have also been following a video to adjust the high/low position of my front derailleur.
The issue I am having is that the low adjustment is no where near ...
- 865
3
votes
2
answers
441
views
Has bicycle gearing become 'easier' over the last few decades?
If you look at a 10-12 speed bicycle from the days before indexed gears you have a 27"/700c wheel with a 42/52 chainset and a 14-28 freewheel. At the time such a setup was standard for High Street ...
- 17.3k
61
votes
6
answers
111k
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 ...
- 817
49
votes
11
answers
42k
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. Apart from being heavier, how much will I lose in performance if I use hub gears?
- 2,908
38
votes
5
answers
12k
views
Perfectly setting up gears - how?
Every time I have my bike serviced, the bike shop sets up the gears on a stand in their workshop. The gears change perfectly on the stand, but when the bike is on the road, the rear derailleur doesn't ...
- 481