Gears in the drivetrain of a bike.

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1answer
26 views

Can't shift front gear, despite loosening, tightening, etc. What could be wrong?

Disclaimer: I'm clueless and am piecing together what little information I know from reading this site and from watching YouTube 'intro to repair' videos. I've been gifted a used mountain bike, my ...
5
votes
5answers
2k views

Gear indicator on SRAM X5 Shifter shows wrong gear

I have SRAM X5 Shifters like this one: The indicator is now showing the gear above the one I'm actually in, so if like the picture it shows a 2 I would actually be in 1 (the smallest chainring), a ...
2
votes
2answers
86 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 ...
1
vote
2answers
1k views

Chain “vibrates” on higher gears

My freewheel that I have installed myself only 1.5 years ago has totally worn out by the moment and so I just had it replaced along with a chain at the workshop. I'm still concerned though about the ...
23
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6answers
1k views

Can you shift both the front and back gears simultanously?

Is it advisable to shift both the front and back gear simultaneously? Can this cause any damage?
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2answers
72 views

Face gets extremely red when biking in the cold ~5c, and then going indoors, due to temperature change maybe

Face gets extremely red when biking in the cold ~5c, and then going indoors, due to temperature change maybe. What can you wear when biking to prevent this problem, and could you link to a site? ...
0
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1answer
42 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 ...
0
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1answer
45 views

Best Gear Shifters [closed]

I am new to Bicycling. I have a question on gear shifters. Mostly the bikes are available with Revo Shifter and EF Fire Shifters. Which one of these are best and why it is?
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2answers
84 views

Which gears not to use in a 2 X 9 gear bike

I am new to biking. I bought a hybrid bike with 9 gears at the back tire and 2 gears at the front. For reference lets say gears at front (chain ring) are numbered 1-2 and gears at back are numbered ...
0
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1answer
51 views

Winter deraillers [closed]

I commute all Winter long on my Winter bike and I realize I don't use many gears. The back derailleur gets jammed with salt, dirt and other debris. I'd like to build a bike with fix gear at the back ...
3
votes
2answers
6k views

How do the adjustment barrels on a gear cable work?

I have a Shimano Sora derailleur on the bike I just bought with a triple chainring in the front. Right up by the shifters there is a sort of barrel adjuster on the cable. It doesn't seem to do ...
0
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1answer
79 views

What to prepare for a long distance ride (1600km) [closed]

I will be riding my bicycle from Czech Republic to London this April. Even though I cycle quite frequently, this is my first time I will be doing such a long distance. I am not doing this for ...
1
vote
1answer
254 views

Gears jumping/slipping from the rear cogset on a new bike

Its been 1 month since I have bought my new MTB (Kross globate 1.1) with 18 gears (shimano).. Now the problem is chain has slipped twice while riding. First time my speed was around 25kph and second ...
1
vote
2answers
406 views

Would a quality derailleur improve a cheap bike

I bought my son a cheap mountain bike last week, it did 2 miles before the chain mashed up the drailleur. is it worth replacing with a better quality component. im a novice , but handy enough to ...
2
votes
2answers
83 views

Special hub requirements for an 11-speed group

In a question earlier today (Changing cassette from 8 to 10 or 11 to meet the Shimano 105 5800 groupset) the Op asserts that they would need to change their hub, if they wanted to go from a 10- to 11- ...
0
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0answers
31 views

Shimano Nexus 3 stuck on lowest gear

I have a bike with Shimano Nexus 3 gear, and it's stuck on lowest gear. However, if I move shift pin that changes gears it changes the gears. So Nexus itself seems to be working, but the pin is not ...
5
votes
4answers
10k views

Why does my gear slip when going uphill / standing?

I have a road bike that I use to commute ~6 miles to work every day. Some of the portions of the ride are at a steep incline, and I've noticed that when I get up to stand on some of these hills, my ...
0
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2answers
242 views

8 speed shifter with 7 speed cassette

I just got a bike with broken hanger and derailleur. As the owner didn't want to put money in good parts, I installed a cheap Sunrun derailleur compatible with index, and a new hanger. Just after I ...
2
votes
2answers
182 views

Can you change gear on your front dérailleur during a cyclo cross race?

During the 10 cyclo cross races I did this year I often found myself riding solely in my small 34t change ring and was unable to change up and down quickly enough between corners and barriers to be ...
1
vote
1answer
75 views

SLX chainring compatibility

I'm considering swapping the inner ring on my SLX double chainset (M665) from 22T to 28T. I noticed that the newer M675 has a 40/28 option, so I figured that the 28T chainring from this set-up would ...
1
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3answers
157 views

Shimano Sora 9-speed shifters “missing a speed”

First time posting, hope I can get some suggestions on this weird issue I've noticed with my shifting. I have a fairly decent understanding of how to maintain gears myself, and have made quite a few ...
0
votes
3answers
88 views

Chain is choking and pedals fly forwards when going up hill or standing on the bike pedals

I have a 2 month old Vodoo Bizango from Halfords in the UK. I have had this problem about 2 weeks into having the bike where if I'm on the highest gear and want to do sprints (standing on the pedals) ...
0
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1answer
60 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 ...
2
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1answer
84 views

Most Efficient Way to tune rear gears of mountain bike

I have a schwinn ranger suntour mountain bike which I enjoy riding and ride frequently. When the bike was new I had no difficulty shifting through all 21 speeds of the bicycle with 3 gears by the ...
8
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7answers
9k views

While pedaling standing up, bike crank gives in as if shifting, what is causing this?

While standing up and pedaling, the cranks give in as if shifting. It seams like I am shifting down, but my hands are off the shifter, almost like the chain is skipping a link. I took it to a bike ...
2
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8answers
2k views

How to position a bike for work without a stand

I want to tweak my gears, from time to time: Adjust my front and rear derailleur limits, see if the shifts are smooth, make small adjustments on the cable tension, and so on. Is there any way to get ...
1
vote
3answers
166 views

My back wheel isn't connected to the gears

I have an old bike it says Via Montega on the body if that helps. I was ridding it earlier when the peddling stopped resulting in forward motion. I thought the chain might have come loose but it is ...
3
votes
1answer
225 views

sram cx1 without the sram cx1 crankset?

I'm thinking of upgrading to sram cx-1 and discs for next season but would like to keep the current crank set based power meter I have. Can anyone think of a reason why I could not use the current ...
28
votes
5answers
33k 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 ...
0
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3answers
68 views

Rear shifting - Unable to shift to toughest gear

I was adjusting my rear shifting following the advice in this video: ...
0
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2answers
145 views

Gears randomly switching

So I have a Trek Fuel SLR 90 and whenever I ride on flat dirt roads, the back gears randomly keep switching on me. It gets really annoying to ride Please help
1
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3answers
388 views

Can I drop-in a compact crank set with my current 105 groupset

I live near a lot of hills and am fairly new to biking. In my lowest gear I still can't keep up at an efficient pedal rate on the hills. I found out they sell "compact cranksets" which in addition ...
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2answers
158 views

What to upgrade to achieve a higher top speed?

I enjoy going fast and my current bicycle tops too early, what kind of upgrades would I need to make to achieve a taller final gear?
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2answers
105 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, ...
1
vote
2answers
236 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 ...
1
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2answers
138 views

How do you make an end-capped gear cable?

I want to make my own gear cable of non-standard length. I have a cable with one end capped like the larger end-cap shown in the first picture; the other end is currently bare — I have trimmed the ...
0
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1answer
118 views

My Gears Are not Shifting Well

my gears are not shifting well. i can only shift from 1st to 2nd...i don't know what is the problem i have shimano revoshift gear enter image description here here are some images
1
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3answers
486 views

MTB with gears or non gears, suspension or non-suspension for stunts?

I am planning to buy an MTB for learning stunts...(BTW my family wont allow me to buy a BMX because of its height). So my question is shall I go for MTB with front suspension or not and with gears or ...
6
votes
8answers
20k views

Chain slipping on newish bike

I've looked at most of the answers for related questions and they all speak about replacing parts that are old. I just bought a new bike from a friend who rode the bike for about a month before ...
2
votes
1answer
91 views

Gearing on drivetrains

I am running a tiagra compact 50/34t front with a sora 12/32t rear, I am still finding the long steep hills a problem, is there a alternative available without going tripple. IE lower front chain ...
4
votes
3answers
12k 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 ...
1
vote
1answer
41 views

Changing Frames

I just had a crash and wrecked my Cube hardtail mountain bike. Can I put all the parts, wheels, Reba Rock Shock, Shimano gears etc off my hard tail on to a full suspension frame?
5
votes
2answers
346 views

Can double chainrings be used with a clutch-type rear derailleur?

I've been reading up on Sram's CX1 1x11 cyclocross-specific group. It hinges on two technologies to minimize the potential for dropped-chains/chainslap. The CX1 clutch rear-derailleur keeps the chain ...
0
votes
3answers
221 views

Halfords just replaced my chainset and it is a 10 speed one, but my cassette is 8 speed. Am I ok?

Last week my chainset was replaced (in warranty) and I just found out that the chainset is 10 speed (FSA Vero) but my rear cassette (+Claris gears and shifters) is 8 speed. I want to know if I will ...
3
votes
3answers
346 views

Rear index shifting not staying in middle gears

I have replaced a chain (SRAM PC 830) and 7 speed freewheel (Shimano MF-HG37) on the back of my daily commuter bike about 300 miles/ 3 weeks ago with the same models. The old parts lasted me 4000 ...
2
votes
2answers
306 views

problem in gear shifting

I'm using a 21 speed bicycle,the problem is I'm unable to shift the chain to the smallest derailleur(rear)...the shifters are thumb press type there's no problem in pressing the shifter...when ...
0
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0answers
44 views

Shimano Inter7 axle unit disassebly

I am trying to disassemble Shimano Inter7 SG-7C26 unit to clean and repair after a bearing retainer that is situated between parts 1 and 2 broke. I am having problems removing part 2. Does anyone know ...
1
vote
2answers
176 views

How do I use my power meter file to improve my time up this steep hill climb tt?

The hill is 0.8km long with an average gradient of 13%. My cadence on my 46t-36t 11-25t 9 speed gear ratio starts at 80rpm and rapidly dips to 40 rpm. Is there a way to calculate what gear ratio is ...
1
vote
1answer
144 views

Change Shimano FC-M431 Octalink crank arms to Shimano SLX

I won a good deal for a Shimano 2012 SLX FC-M660 set, excluding bottom bracket and crank bolt. Is there any chance I can upgrade my touring bikes FC-M431 Octalink somehow without changing the chain ...
1
vote
0answers
50 views

Pedals turn but front sprocket does not [duplicate]

My Mountain Bike ,about ten years old,Three (3) sprockets in front. It backpedals (whizzz) But when I go to pedal there is no engagement - Pedals turn but sprockets don't move..But sprockets move when ...