All Questions
Tagged with bottom-bracket crankset
221
questions
44
votes
16
answers
187k
views
Creaking from cranks/spindle. How to fix?
Recently the cranks on my bike started to creak.
I checked with my usual "bike-bible" Park Tool. They recommended dis-assemble, lubricate, re-assemble.
So I did that.
Remove cranks.
Remove spindle.
...
- 543
22
votes
8
answers
172k
views
Noticeable clicking from crankset or bottom bracket
A few days ago I began hearing a clicking noise coming from the crankset and I can also sense a slight hitch when the right crank is at its upmost position just when it's about to go down.
The ...
- 365
21
votes
9
answers
49k
views
How to remove a crank arm with stripped threads?
A friend called me up yesterday after a mis-adventure during his attempt at a bottom bracket overhaul. He stripped out the threads on the (left) crank arm while using a Park crank puller. In a pinch, ...
user313
18
votes
6
answers
7k
views
Should square taper cranks be greased before installation?
There’s a fierce debate over whether the interface between a square taper spindle and crankarm should be lubricated or not. Adding to that, everyone seems to have their own take on the issue. Here’s ...
- 16.4k
10
votes
2
answers
4k
views
Broken bottom bracket?
I bought a Trek FX Series 7.5 in April 2017 and ride every day for about an hour. Two weeks ago the crank arms suddenly gave around the bottom bracket and no longer stayed 180 degrees to eachother. I "...
- 103
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
9
votes
4
answers
9k
views
Chainring rubbing frame after tightening cranks. What should I change?
Bike details:
Singlespeed (steel)
Square taper threaded BB
58/19 ratio (hence huge chainring rubbing the frame)
130mm bcd 5-bolt crank/chainring
Mileage on cranks: several thousand km in all weather (...
- 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
8
votes
2
answers
1k
views
When did Square Taper Bottom Brackets retire from racing?
I haven't been able to find any hard data on this. I have the impression that most top-end bikes made the switch around the year 2000.
It would be great if I could get an answer for both of these:
...
- 5,735
7
votes
3
answers
5k
views
Crank arms are not parallel to each other. What could have caused this?
It is a cottered crank. Crank arms themselves don't seem to be bent. It is a non-cartridge style spindle. Any ideas as to why they are not lining up?
7
votes
2
answers
12k
views
Swapping cranks, but the new crank is wider, how do I compensate for this?
I was swapping the cranks and bottom bracket on my karate monkey from a Truvative stylo crankset (Mountain Double, GXP bottom bracket) to a Race Face Evolution DH (Mountain Triple, Race Face bottom ...
- 18.3k
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 ...
6
votes
2
answers
2k
views
What type of crank fitting is this?
I have an old road bike I want to get a single speed crank for but don't know what fitting the bottom bracket has.
- 459
6
votes
2
answers
35k
views
Why does my non-drive side crank arm come loose?
I tighten the bolt super hard. Ride for a while. Then it comes loose again. I don't know if its my BB or the bolts. How can this be fixed??
- 61
6
votes
2
answers
6k
views
Lost left crank arm crank end cap
What parts do I need to put this back together?
I've lost some pieces going for a ride but I'm not sure what exactly. I think I'm missing the end cap to the crank and maybe a spacer.
I was heading ...
- 1,427