All Questions
Tagged with bottom-bracket crankset
221
questions
2
votes
1
answer
122
views
How to read chainline specs for crankset and bottom bracket compatibility?
General question:
I've been trying to find a replacement crankset, but have been having trouble understanding other posts about compatibility with respect to chainline. It seems that people add the ...
- 153
0
votes
0
answers
19
views
Will Sram Dub Pressfit BB92 fit a Sram Apex Crankset?
I would love your help. Will this Sram Dub Pressfit BB92:
Fit the Sram Apex Crankset:
- 471
2
votes
1
answer
82
views
crank arm with 15mm diamond holes
I have a stationary bike that was given to me. The threads for the pedals are stripped, so I was trying to replace the crank arms.
Both arms are diamond hole types, I managed to get them off, but I ...
- 123
5
votes
3
answers
435
views
Left side crank arm stuck to spindle due to stripped threads, how to remove bottom bracket
The bicycle in question is a "Schwinn Women's Ranger 26" Mountain Bike". It has a slight play in the crank arms, stemming from the bottom bracket.
I tried taking the crank arms off, and ...
- 233
1
vote
1
answer
107
views
bottom bracket axle length, chainline and crank compatibility
TLDR: How much leeway there is, if any, in selecting the bottom bracket axle length for octalink or square taper cranks in order to reduce chainline?
Background: I'm doing some minor modifications to ...
- 113
1
vote
1
answer
134
views
Bike pedaling makes cracking noise under middle or high load
Can this be related to bottom bracket bearings of Race Face BB92, PressFit? The chain is freshly lubricated and quite a new one. No noice is produced when pedalling with low load or not pedalling.
...
- 143
2
votes
1
answer
63
views
Square-taper crank wobble/movement in only one spot
For square-taper aluminum cranks:
When my drive-side crank is in the 12:00/highest position and the non-drive side in the 6:00/lowest position, there is slight play between both cranks (it rotates ...
- 739
2
votes
1
answer
52
views
Installing crank on threadfit30
I wanted to get advice regarding installation of new bottom bracket and crank.
My frame BB shell is BSA68.
Bottom bracket is threadfit 30
crank is eewings mountain (which expects a BSA73).
I looked ...
- 523
1
vote
1
answer
207
views
I have a Triban RC100 (Women's bike, small) what size bottom bracket does it have?
I recently crashed my bike and bent the stock crankset so I am thinking of buying a new one and replacing it but for that I need to know what size bottom bracket comes with a stock Triban RC 100 women'...
4
votes
4
answers
719
views
How can I measure whether pedals and bottom bracket are properly aligned to each other and parallel?
I get a weird sensation on the left pedal when I'm riding one of my bikes, as if the pedal was not perpendicular to the crank arm. It feels like the pedal is moving under my foot, although there is no ...
- 2,069
1
vote
1
answer
83
views
Can someone please give some advice to help find a new crankset?
I apologize in advance if I mix-up some lingo, I have almost no experience in fixing bicycle drivetrain.
Previously I had Comet CKM-7159 as crankset (I managed to find this datasheet that seem to ...
- 13
4
votes
1
answer
3k
views
How can I know if I need spacers for my bottom bracket / crank?
I am assembling a bike on my own and came a cross the topic spacers for bottom bracket/crank.
I am installing a Shimano FC-R7100 crank with the bottom bracket model SM-BBR60.
By taking a look at the ...
- 302
2
votes
1
answer
308
views
1 piece to 3 piece crank conversion
I wish to convert my 1 piece crank to a 3 piece crank. I have a conversion kit that presses into the bb shell and accepts a cartridge style bb. I went to order one and realized I have no idea what ...
0
votes
0
answers
58
views
What is the correct BB spindle length for Kooka cranks?
Does anyone know the correct square taper bottom bracket spindle length for an early 90s Kooka triple mountain bike crankset?
- 1,895
2
votes
1
answer
108
views
BB/Cranset creaking on/off
I'm having an issue with a creaking sound on a brand new bike (see video below). It seems to happen after 30+ min rides, you can faintly hear it when the pedals are spun backwards but this usually ...
- 21
1
vote
1
answer
332
views
Crankset compatibility, old 105 SC to new Claris FC-RS200
My bike currently has an old 105 crankset. It's a 105 SC, from 1989. The rest of the components are Claris R2000.
I'd like to replace the crankset with a new one with smaller rings. I thought of the ...
- 11
0
votes
0
answers
37
views
How to remove threaded crank arm [duplicate]
I'm trying to service my son's bike that was left outside over the winter. I'm not sure what type of cranks and bottom bracket I have.
The crank arms seem to be threaded and the bottom bracket looks ...
- 33
4
votes
1
answer
772
views
Is it possible to damage the crankset while removing the pedals?
I got a brand new bike and I wanted to replace the pedals with the ones from my old bicycle. However, while removing the pedals from the new bike, I forgot that one of the threads was reversed and ...
- 209
1
vote
1
answer
196
views
Old Raleigh Marathon road bike with new Shimano 105 crankset – What bottom bracket is needed?
Hey guys first time poster. I have a Raleigh Marathon road bike and I am pretty sure it’s an ‘85. The crank arm has been falling off so I have decided to just replace the whole crankset. I have been ...
- 11
3
votes
1
answer
864
views
Clicking / cracking noise rotating crank MTB
Suddenly during the ride, strange cracking noise started to happen. It happens even without a chain. The crank seems to rotate smoothly otherwise. There are more cracking noises when rotating forward. ...
- 143
2
votes
1
answer
122
views
BB86/92 spacer hollowtech Ultegra 8150
I'm having some issues on my new road bike which I am setting up. It's a Canyon Ultima CFR frameset which came out of the box with the handlebars, Dura Ace 9200 wireless shifters and brake calipers.
I ...
- 121
7
votes
1
answer
670
views
Loose bottom bracket on MTB
The bottom bracket on my MTB is loose. I am able to slide it from side to side as can be seen in this video:
https://photos.app.goo.gl/CWmA8afBaA6GtDvq6
It seems to be a pressfit BB I have. I have ...
0
votes
1
answer
75
views
What crankset fits BH Ultralight RC?
This is somewhat related to an issue I had previously posted.
The shop initially said it was the cassette, but after a thorough check-up, the shop told me that the issue is the wear & tear of the ...
- 241
2
votes
1
answer
98
views
Cranks shift from side-to-side in new (second hand) bike
Just bought a new bike (second hand) and I've noticed that the cranks or perhaps the bottom bracket slides from side-to-side, almost as if the bottom bracket isn't long enough for the bottom bracket ...
- 185
4
votes
1
answer
777
views
How do i remove my crankset and bottom bracket?
I have a Specialized Hardrock I'm trying to remove the crankset and bottom bracket from. It's a square taper crank and I do have a Parktool CWP-7 however I have yet to understand how to use it exactly ...
- 1,277
6
votes
2
answers
277
views
Crankset repeatedly degrades even after bearings and brackets replaced 3 times - what's wrong?
I'm repeating words that the bike shop told me or from a google search. This bike seems to be defective since purchase. It's a Schwinn Men's GTX3 Hybrid with 700c wheels. Within a few weeks the pedals ...
- 61
4
votes
2
answers
391
views
Rotor Crank and BB Rubbing Noise on Road Bike
Just bought a new Corratec CCT Evo and there has been an annoying noise from the crank. It's a rubbing noise that is always present when pedaling at any cadence or power.
Listen here: https://...
9
votes
1
answer
1k
views
FSA "24 mm" crank stuck in Shimano "24 mm" BB
I'm beating myself over the head after trying to mount an FSA Gossamer crankset into a Shimano BB. My MegaExo BB had developed play, and drag, and squeaking, so I thought I'd replace it. Bought the ...
- 841
2
votes
2
answers
2k
views
Will a 11 speed Shimano Deore crankset work with a 9 speed Shimano Altus cassette? [MTB]
I have a 2020 Vitus Nucleus 27 VR with a stripped pedal thread on the left crank arm (bought it secondhand, and am guessing the previous owner crossthreaded it). The current drivetrain is a 2x9 ...
- 23
1
vote
1
answer
562
views
I cannot find the correct Crank Arm Bolt for my bike
Recently, when I was riding my bike, one of the crank arms fell off and I realized that the crank bolt wasn't properly adjusted when I ordered the bike, hence when it fell off, I was able to put the ...
1
vote
2
answers
676
views
Do I need to replace bottom bracket and/or cranks for road-to-fixed conversion?
I have a vintage race frame with a Shimano Dura Ace 7400 series double-ring crankset on a Shimano bottom bracket of some kind.
I intend to use the frame to build a fixed gear bike. As I understand, ...
- 573
0
votes
1
answer
115
views
Which Bottom Bracket do i need? 107mm 41
I cant´t find a Bottom Bracket for my Cube two 15 2017.
It need a 107mm x 41.
Please help me.
- 1
0
votes
1
answer
221
views
Is the Neco B910 bottom bracket's square taper JIS or ISO?
I'm looking to replace my cup and cone bottom bracket as my current one has deep grooves on the spindle. Because for some reason replacement spindles (113 total width, 68 shell width) are very ...
user65434
5
votes
1
answer
2k
views
Are the chainrings supposed to have irregular sized teeth?
I just bought a Shimano Tourney 3 speed crankset (Fcty301 Jts01) and it came sealed in a Shimano bag, that was inside another sealed bag, but when I look at the teeth, they are not regular, some are &...
- 151
1
vote
1
answer
88
views
Swapping BB and crankset between bikes
I have a 2001 DeVinci Santiago road bike, which has a Shimano 105 road triple crankset and an octalink BB. I'm about to buy a 2010 Masi Speciale CX, which has a Truvativ Touro compact double and a ...
- 261
5
votes
1
answer
279
views
How should I remove this crankset?
I recently acquired a 10 year old Cube Acid MTB which I intend to refurbish and convert to an ebike.
I need to remove the crankset and purchased a crank puller.
It seems to be a universal size but the ...
- 193
6
votes
2
answers
2k
views
Is there empirical evidence that SRAM DUB bottom brackets have longevity issues in the BB86/92 format?
It's well-known that bottom brackets designed for a 30mm spindle and a BB86/92 press-fit bottom bracket shell (41mm internal diameter) will have reduced lifespans due to the very small bearings that ...
- 4,021
2
votes
1
answer
663
views
Crankset compatibility: Can I replace Shimano FC-M521 with FC-T4010?
I recently bought a Jamis Coda Elite (2012) second hand. I'm slowly replacing all of the drive train as most of the components are worn.
According to p114 of the original product catalogue, the bike ...
- 155
3
votes
2
answers
663
views
Remove Shimano 105 left crank arm
I'm trying to remove the left crank arm. I've previously been able to do this with a 10 mm Allen key. But as you can see, this time it's stuck.
Does anybody know which tool is best for the job? I fear ...
- 81
0
votes
1
answer
292
views
Bottom Bracket Axle wobbling while cycling?
The other day, I was riding up a hill and crack, something happened to my front derailleur. The chain rings now wobble back and forth on the horizontal axis as I pedal.
I decided to take a look and ...
- 101
8
votes
1
answer
1k
views
I replaced my bottom bracket and now my crank arm bottoms out on the square shaft before it can be torqued. What did I do wrong?
I just replaced my bottom bracket using another one of the exact same make and size (Sunlite 68mm x 103mm square tapered shaft cartridge). It installed smoothly and everything seemed to be going well ...
- 183
4
votes
3
answers
686
views
SRAM GXP crank partially stuck in bottom bracket
I (unfortunately) have a SRAM Apex GXP crankset that I need to replace after less than a year of use because it's garbage. But I can't get the crankset out of the bottom bracket. I've taken the bolt ...
- 141
2
votes
1
answer
292
views
Cottered Crank Bottom Bracket
Can anyone help me identifying the bottom bracket? It had a cottered crank arm but only on one side, the other side has nothing.
I have no idea how to remove the spindle. I already tried hammering it ...
- 21
3
votes
1
answer
2k
views
What key/wrench to remove this FSA crankset?
I have never worked with bottom brackets or crank arms before. What keys do I need if I want to remove these FSA ones?
- 661
2
votes
2
answers
245
views
Any Cranks/Bottom bracket that can replace syncros cranks/BB on a 2006 Santa Cruz superlight MTB?
My left syncros crank was recently backed into by a car. The cranks are 175 mm. The bottom bracket is also syncros brand, threaded, and the size is 68 x 110mm. I have a syncros triple chainring, 5 ...
- 21
1
vote
2
answers
826
views
SRAM S2200 - replacement BB30 spindle?
I'm having a hard time finding a replacement BB30 spindle for a SRAM S-2200 (X.0) crankset (originally fitted to a 2013 Specialized Enduro). I stripped the thread on the spindle, but I would like to ...
- 161
0
votes
2
answers
688
views
How to match bottom bracket and crankset sizes?
I'm trying to buy a new bottom bracket. But I am not sure if sizes fits together.
VGEBY1 Bottom bracket with CYSKY Single Speed Crankset 48tT.
The bottom bracket has the following sizes;
68X118mm
...
- 471
1
vote
1
answer
1k
views
SRAM NX Eagle crankset on a Shimano bottom bracket SM-BB70
I just bought a SRAM NX Eagle crankset (DUB standard) for my bike but when it arrived I realised it doesn't fit in the bottom bracket installed on my bike (SM-BB70).
Is there a way to make it work or ...
- 113
2
votes
1
answer
6k
views
SM-BB51 Replacment
I have an oldish bike around 8 years old.
My bottom bracket has started to make a clunking/clicking sound.
It currently has a SM-BB51 fitted.
I'm unable to find a exact replacement in stock. I'm ...
- 235
2
votes
2
answers
212
views
Did I choose the right bottom bracket?
This is my bicycle.
I mounted a new Thompson 124mm bottom bracket (the narrowest of this kind I could find) and a new single-ring sqaure-tapered crankset.
When set as in the pictures, there is a ...
- 21