All Questions
81 questions
9
votes
2
answers
2k
views
Simultaneous clang, hesitation and drop when I pedal with any weight
Background: New chain, new bottom bracket, new front derailleur, new shifters, new brakes.
This is a cheap Walmart Mongoose that I'm trying to keep riding and upgraded some of the components recently, ...
- 91
7
votes
3
answers
1k
views
Why does my shifter say the wrong gear?
I had a slow puncture in my rear tyre. I fixed it by flipping the bike upside down, removing the rear wheel, patching the inner tube and replacing the wheel. However, I seem to have caused a strange ...
- 233
0
votes
1
answer
77
views
How to properly adjust rear derailleur for Wahoo Kickr?
I have a Merida Escultura 100 connected to a Wahoo Kickr (with the rear wheel removed, of course). I've ridden this combination for over a year and had the derailleur adjusted more or less so there ...
- 1,081
6
votes
3
answers
1k
views
New bike-vibration in pedals
I just bought brand new Scott Sub Cross 10 mens city/crossbike. It has 30 gears and the same day after I bought it I went driving on an asphalt road and started to feel grinding/vibration in pedals at ...
- 63
5
votes
4
answers
1k
views
Chain drops when shifting up a gear at the front?
I've just gotten a new bike and run into a problem. When shifting from a smaller cog to a bigger one in the front gears, the chain consistently drops.
The problem happens regardless of whether I'm on ...
- 51
2
votes
1
answer
107
views
Does this chain seem short? Does this photo indicate any obvious drivetrain issues?
Addition.
Yes this is the large-large chainring.
The shifting is rather poor but I have not tuned high, low and B, tension etc.
Thank you
I recently moved to a larger
chainring.
The shifting seems ...
3
votes
4
answers
240
views
Chain rub on chainstay when in smallest front crank and highest gear
I've just bought my son a 2nd hand Orbea MX 27 (thought it was an MX40 but the groupset is consistent with the tech specs of the 2020 27). It was hardly used so doesn't appear to be age / mileage ...
- 31
2
votes
0
answers
295
views
Bicycle chain roller diameter size chart?
I'm digging for a while now, and can not find any helpful chart for chain roller diameters e.g. Shimano 8,9,10,11,12 speed. It differs of course depending on the manufacturer and the purpose. We know ...
- 153
0
votes
1
answer
123
views
Gear combinations for 3×7 Raleigh CHESTER 21 2022, frame size 50 cm
Continuing Which gears combinations shouldn't be used? and How do I know what gear combinations should work without chain rasp on front derailleur?, which are rather generic questions and answers, ...
user69411
1
vote
0
answers
549
views
Adjusting road bike to Wahoo Kickr: is this chain noise from cross-chaining, or do I need to index the gears?
I've got an 8-speed Mérida road bike (that is, 2x8, 2 front, 8 rear) that I'm fitting to a 2020 (v5) Kickr that I just bought new. I am learning about some bike mechanic stuff that despite many years ...
- 1,081
10
votes
3
answers
10k
views
What liquid should I use in an ultrasonic cleaner?
I've ordered an ultrasonic cleaner, to clean up greasy, oily bike parts like chains and cassettes. I want to get them fully clean of contaminants and try a wax-based lubricant.
What kind of liquid ...
- 13k
2
votes
2
answers
737
views
Chain dropping between chainrings when shifting down
I have a power2max NGeco 110mm spider with SRAM 50/34 chainrings mounted on it. I'm using an 11sp chain and an R8050 Di2 front derailleur.
When changing from the big ring down to the small ring, the ...
- 4,043
0
votes
0
answers
114
views
can't stop pedaling or chain drops down
Managed to unstick derailer. But can't stop pedaling or chain drops down.So when trying to stop bike. have to take feet off pedal to not catch chain
16
votes
4
answers
8k
views
New to Bikes: My chain fell off and I put it back on. How can I know if it's on the right cog?
I am new to bikes not ridden one since I was 11 I am now 63!
I have a mountain bike and never used gears before they are mind boggling.
I went out and rode it no problem but trying gear changes I don'...
- 163
3
votes
1
answer
800
views
What is the maximum cassette teeth for my mt210 3x9 crankset (44/32/22)
I'm currently assembling a bike. I bought a Shimano mt210 3x9 (44/32/22) crankset. I'm wondering what maximum teeth cassette should I buy that will be suitable and compatible with this crankset? Also ...
- 345
1
vote
1
answer
3k
views
105 11-34T Cassette Compatibility
I purchased a Merida Speeder 400 a year back. This came with Shimano 50-34 teeth and Shimano CSR7000 11-32 teeth 11-speed cassette which I replaced with Shimano 105 R7000 11 Speed 11-34 Teeth Cassette....
2
votes
0
answers
215
views
Slight crackling sensation apparently due to the chain sticking to the cassette teeth
I've just assembled my bike, so it has hardly been ridden (less than 200km) and all the components are new.
Everything works perfectly, except an unpleasant very slight crackling sensation when I ...
- 21
2
votes
5
answers
10k
views
Rear derailleur doesn't go to smallest cog
I'm sure it is a simple fix to this, but please bear with me.
I have recently swapped my rear wheel on my bike (with an identical one, keeping the same cassette). Upon putting it back in, I noticed ...
- 461
8
votes
3
answers
4k
views
Do I need a chain breaker tool to install a new chain on my bicycle?
Do I need a tool, or will the chain have the correct length? For example, my biggest cog in the rear is 34T and the biggest chainring at the front is 42T and the chain has 116 links. Is a chain with ...
1
vote
3
answers
12k
views
Chain slipping on smallest cogs (bigger chainring, new chain)
I recently switched my SRAM 1x12 Eagle SX drivetrain from a 30 to 34 direct mount Chainring. I also bought a new chain to accompany with it. Chain length was measured as the sram service manual ...
- 173
2
votes
2
answers
4k
views
How to reset my gears after the chain slips off?
I don’t know much about bikes so whenever my chain slips off I always just force it onto the cog I can get it on.
I think this has been messing my gears up because I’m having issues where Cycling in ...
- 23
3
votes
1
answer
286
views
How do I fix my front derailleur?
Complete cycling novice here so apologies if this is a stupid question. I went over a bump whilst cycling and knocked my chain off. I think in the process of trying to fix it I must’ve knocked the ...
3
votes
2
answers
8k
views
Bottom jockey wheel on rear derailleur keeps skipping chain
Basically the angle between the bottom and top wheels is too great causing the chain to skip to the outside of the bottom wheel under force. If I use the higher adjustment screw on the shimano ...
- 31
1
vote
0
answers
44
views
Gears playing up after a chain replacement [duplicate]
I had used my bike for about a year and thought it was about time to replace the chain. The old chain started to skip links, but only sometimes.
I got the right chain from my local bike shop, I sized ...
- 11
3
votes
4
answers
2k
views
How do I know what gear combinations should work without chain rasp on front derailleur?
I tried adjusting the front derailleur on a 3x10 trekking bike. After fiddling around a long time, I concluded that is probably not possible to make all cogs work with all chainrings. How do I know ...
- 305
2
votes
1
answer
106
views
A clicking every couple of pedal turns (video included)
I have been using a hybrid trek for a couple of weeks.
The bike is still very new with only around 150 miles done.
This morning on a ride it kept clicking every few pedal turns.
I cut the ride ...
- 141
7
votes
6
answers
1k
views
How to create a bicycle that rolls backwards when you pedal forward?
This may seem like a crazy question, but I am currently trying to design a kinetic machine where pilots are facing away from the direction of motion, adding whimsy and curiosity. As someone who doesn’...
0
votes
2
answers
621
views
Lifespan chain and gear wheels on e-bike [closed]
If is possible to give an indication of the average lifespan of the chain and gear wheels of an E-bike?
Assuming: Cycling in all weather conditions (commute); Western European climate (10% of time ...
- 101
1
vote
1
answer
201
views
Levels of derailleurs, freewheels and chains
What are the levels of derailleurs (Shimano probably) I know Altus and Acera but don't know the higher end ones. I am putting this on my Sondors Fat ebike. I will be using a 7 speed freewheel, and a ...
- 11
3
votes
3
answers
22k
views
Why does my chain slips when I put pressure on my pedals
When I get on my bike and put pressure on my pedals or stand up and pedal, my chain slips. I want to know what the problem is so I can fix it myself as I don’t have a lot of money for a bike shop to ...
- 31
4
votes
1
answer
5k
views
Chain get stuck on front sprocket during pedalling
When pedalling the chain sometimes get stuck on the front sprocket. This happened after I cleaned the gears and replaced the chain. What could cause this?
The purple line is the chain. The circles ...
- 143
2
votes
1
answer
454
views
Chain Pops When Leaving Cogs
This problem has consumed a lot of time and resources and has yet to be solved.
This is a basic Giant Iguana mtb, with a Deore rear derailleur, SRAM 950 9-sp cassette, Truvativ chainrings, Shimano ...
- 23
4
votes
1
answer
556
views
Will this chain work on my bike?
I've bought the Shimano HG40 chain which is advertised as a 5,6,7 and I think 8 speed chain. I've just received it and it also says 15,18,21,24. (Obviously including the front gears). My bike is a 2x6 ...
3
votes
1
answer
136
views
Gear shifting : new to cycling maintenance
I'm new to cycling. I have a Soma Saga with SRAM X7 derailleur and Apex shifters. I have ridden about 200 miles on it.
When I'm cycling, sometimes my gears shift/jump to the next gear on their own. I ...
15
votes
3
answers
9k
views
How efficient is string bike? Is this really a revolutionary bike?
Bicycles are getting evolved with good technologies or methodologies as the period changes. Now, this one bike, so called string bike has been introduced, which doesn't have chain, derailleur but ...
- 317
0
votes
2
answers
377
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 ...
1
vote
2
answers
5k
views
Can a gear change snap my chain?
On a ride yesterday I changed from my large to small cog on the front gear set and my chain instantaneously snapped. The snap occurred right on the point where the mech would have applied pressure.
...
- 21
2
votes
2
answers
3k
views
Chain keeps slipping on in-hub geared bike. Stretched chain?
I have an Avanti Discovery 8, which is a mid-range hybrid bike with Shimano in-hub gears. I ride about 20klms a day on bike paths so whilst it gets a work out, it never really gets much bad abuse. I'...
- 493
2
votes
1
answer
3k
views
Is Back-pedalling normal ? chain keeps jumping from higher to lower cog in rear cassette
I just bought a new bike Marin Pine mountain-1 which has 1 X 11 drivetrain. I want to know is Back peddling normal ? I called my mechanic and he said you should not do back peddling or this will ...
0
votes
1
answer
71
views
Can't press shifters (stuck) [closed]
My rear shifter says the chain is on gear 4, but actually it is on gear 7. When I try to swap the gear, I just can't press/pull the lever: it's stuck. The 2nd problem I have is that when I'm riding my ...
1
vote
1
answer
6k
views
How to reduce pedaling resistance
I brought my hybrid bike to Evans Cycles recently to get the rear gear mech replaced after I broke it.
When I got the bike back, it was significantly harder to pedal. I tried moving my gears lower ...
- 143
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
5k
views
Chain coming off with internal hub gear bike - why?
I have a Raleigh Caprice bike, about 7 years old, with sturmey archer 3 speed hub gears. There have been some problems with the hub gears in the past 9 months, which have been fixed by a mechanic.
...
- 31
1
vote
2
answers
486
views
chain jumping when puilling away in a higher gear
I replaced the rear cog as the chain I had snapped and I thought it had taken some teeth off. Now when I pull away in 1-3 gears it's ok, but if I am in gears 4-7 and I try to pull away ( say I have ...
- 11
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
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
7
votes
6
answers
4k
views
Unable to pedal when in high gears
I'm a complete novice with bicycle maintenance and have a slight problem. I just picked up a 2nd hand bike as taking part in a charity event this weekend and an unfortunate accident meant my mine was ...
- 181
0
votes
1
answer
164
views
What other parts might need replacing if I replace an old freewheel gear set for a modern freehub cassette?
I currently have a pre 1970s 10 speed Claud Butler. Perhaps back then men were real men but there is no climbing gear. Since I mostly do touring this is a bit of a problem. Finding a new freewheel ...
- 101
1
vote
1
answer
4k
views
Is reverse pedaling good for smooth gear change?
I am newbie for cycling. When I change my gears, some lock sounds are coming from the chain. But if I do reverse pedaling while switching gears. No sound form chain, but gear switched to the right ...
- 145