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Questions tagged [drivetrain-slipping]

Questions about chains slipping off the gears, or the chain derailing, or the bike shifting at odd times, perhaps while standing to pedal uphill.

1
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2answers
64 views

Is a folding bike's chain more likely to slip?

I have recently purchased a Raleigh folding bike second hand. I had to take it back for servicing (within warranty) when there were problems with the gears and derailleur. The dealers have replaced ...
4
votes
1answer
128 views

Feeling of click/slip when pedalling

This is very hard to explain, but I will try my best. I recently got a Shimano Ultegra cassette, crankset, front and back derailleurs, chain, and cables installed on my Giant TCX SLR1 2015 bike. ...
2
votes
3answers
221 views

Skipping on new chain, new cassette, new derailleur

For a long time I have been having issues with chain skipping on my 1999 Trek 6500. I took a video to illustrate exactly what I mean by "skipping": Over the last ...
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0answers
64 views

New bike and drive train feels like it slips on every crank rotation?

I bought my wife a new bike and she said It is "slipping". I took it for a ride and sure enough, it feels like it is slipping just a tad on every rotation. Its not an in-between gear or tooth slip. ...
4
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1answer
666 views

Downtube shifters won't stay in low gear on rear derailleur

I've finished a bike restoration today and it's my first time using downtube shifters. They work and will span the full range of gears but won't stay in the big cog on the back for long, the shifter ...
0
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1answer
289 views

Shimano Nexus 7 gear hub slips

I need help on adjusting my Nexus 7 Shimano rear hub. Today I tried to install a Shimano 7 gear shifter to change the gears on a Nexus 7 Shimano rear hub. Before installing, I lined up the red lines ...
7
votes
3answers
498 views

(Apparent) chain slippage causes on new bike - usual culprits already eliminated

I recently purchased a new bike (~7 weeks ago). Since day one, it has had an issue with chain slippage. I initially took it back to the bike shop from which I bought it, to be told that it was likely ...
1
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3answers
114 views

My chain slips despite new parts and tuneup

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 ...
3
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2answers
783 views

Fixed Gear crank arm slips

The crank arm on my fixed gear "slips" when I put large pressure on the pedals like when I take that first pedal to get the bike moving or pulling up hard on my toe straps to slow down. The slip is ...
0
votes
2answers
183 views

My chain slips when I use an inappropriate gear, and the chain loosens when changing gears (most of the time). What should I do?

As the title says, it seems like my chain slips way too often. This happens if I pedal hard, go uphill, or ride at an inappropriate gear (even when not pedaling hard). Besides that, it seems like my ...
2
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2answers
383 views

Chain slips/jumps occasionally (with all new parts)

Several months ago I replaced all gearing parts and switched from an 8 speed to a 10 speed system. All parts were brand new. After replacing I noticed the chain slipping occasionally. Though I drive ...
0
votes
1answer
183 views

Why does my drivtrain skip under hard torque?

I recently purchased a new bike, a Specialized hardtail mountain model. It is on the cheaper side, but with the brand I expected a good ride. Less than a month of riding it, the drivtrain has ...
5
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3answers
187 views

Drivetrain wear — questions on chain elongation and skipping

Pitch (i.e. the distance between two links/two cogs) is a major issue in drivetrain wear, which explains why waiting too long to replace a chain may lead to premature cassette replacement. This being ...
3
votes
1answer
215 views

When starting to pedal, it takes half a rotation to “catch”

While power pedaling on my mountain bike, when I coast for a second, it takes a half a circle on my crank to catch. Can anyone tell me the problem?
4
votes
2answers
953 views

Chain skipping mid cassette after a clean

I have cleaned my chain and gears with rubbing alcohol and towels. Afterwards, I applied some chain lube on the chain. Now, when under a lot of torque, the chain skips and slips mid-cassette. Low ...
2
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2answers
683 views

I cleaned my cassette and changed my chain, now my freehub is slipping. What are the possible causes? [duplicate]

I removed my cassette, cleaned it and put a new chain on my mountain bike. All seemed to go well and went back together nicely. However when I took it out for a ride the free hub seems to be slipping ...
1
vote
1answer
149 views

Rear derailleur needs a couple pedalstrokes to change gear

As of late I'm having some trouble with my rear derailleur. When I shift specific gears (most likely to happen to the middle gears), the rear derailleur feels like it doesnt have enough power and ...
2
votes
1answer
2k views

Chain slips to lower gear when pedaling backwards

I have a hybrid 18 speed bicycle which is able to shift through all gears on both the front and rear sets of gears. When on the largest gear on the front set (by the pedals) the chain will try to ...
1
vote
2answers
487 views

Chain Slip at front changing from large to small front chain wheel (with large cog at back)

I have a Pinnacle Neon 3 Hybrid, Shimano Sora 9 speed cassette and 2 chainrings at the front. The bike is 2 weeks old and I've cycled around 65 miles so far. Chain ring has come off 3 times at the ...
0
votes
2answers
7k views

Chain slipping in cassette when under load, could a different type of cassette work better?

This is my second modern bike and I got the same problem each time. The chain slips when under load (usually when I'm standing, but I can slip starting at a light and still sitting too). At first I ...
3
votes
5answers
14k views

Shimano 105 rear shifting issues

I'm disappointed with my new Cannondale and it's 105 group, I expected this to be a major upgrade from my previous trouble free bike with the bottom end group set. It's done about 500 miles, had new ...
7
votes
3answers
4k views

Chain slipping on middle chainring

I have recently replaced the chain and the cassette. Previous chain never slipped. I never had any problems with it at all. But I have made about 10 000 km on it and the wear was beyound any limits, ...
2
votes
3answers
621 views

Chain skipping with new chain and freewheel

I've recently (last 6 months) begun riding again after many years away and have begun updating components on my bike (a mid 80s era Fuji). After replacing the rear wheel and freewheel I developed a ...
4
votes
4answers
2k views

Chain skipping on new freewheel and chain setup - What went wrong?

BACKGROUND NOTE: The bike is a 1992 Univega MTB that originally came with 6-speed SIS with a triple chainring. I removed the SIS shifter when it broke, and went with a friction shifter. The bike is ...
1
vote
3answers
620 views

Pedaling causes rear wheel/pedals to slip

When I start to pedal, say up hill or have to move quickly, my pedals slip and I can't get any movement except for a really bad slip. When I'm on a flat straightaway and have to pedal I hear an awful ...
0
votes
0answers
37 views

Problems shifting under load [duplicate]

I've spent hours with my bike on the stand. On the stand: it performs great. When I ride, I can cause the rear gears to shift just by changing how hard I pedal (the harder i pedal, the higher up on ...
2
votes
2answers
365 views

Chain Slippage on MTB

This is my first time posting on this site so bear with me. I've got a 2009 Fuji Tahoe Comp 29er MTB with upgraded SRAM x.7 components and I'm having a couple issues. It is currently set up as a 1x9 ...
6
votes
3answers
1k 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 ...
5
votes
2answers
17k views

Fixed gear: slipping

I have a single speed bike with a flip-flop hub and recently I decided to try out the fixed side. When testing it out in the car-park I was applying backpressure to brake and found sometimes the ...
5
votes
4answers
3k views

Why is my chain riding up and skipping teeth on the freewheel?

Due to a number of reasons, I would like to keep my freewheel at all costs (It's a Sachs freewheel, the bike has all sorts of more 'vintage' components, and they're hard to come by). From reading all ...
12
votes
5answers
55k 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 ...
4
votes
3answers
16k views

Adivce on what to do next with crunching / slipping gears

About two weeks ago I took my bike to the local bike shop to get serviced. It was previously slipping gears under load and at the end I couldn't use the lowest gear going up hill it would just slip ...
11
votes
11answers
64k 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 ...
9
votes
9answers
55k 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
3answers
27k views

How to fix problem with mountain bike chain falling off gears?

The chain on my girlfriend's bike came off the front gear today, it looks like the back gear changing mechanism isn't handling back-pedaling properly, whenever she pedals backwards the chain slacks ...
34
votes
5answers
11k 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 ...