Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the May Giveaway for DERUIZ LAVA e-bike worth $1699


Crank bolt sizes
#1
Hi, bit of a newbie to bike repair. I'm looking to change the front gears on my mountain bike. I've got the correct crank pulling tool, unfortunately I don't have the correct socket to remove the crank bolt. The bolt is bigger than the 14mm socket but smaller than the 17mm. Are there standard sizes of crank bolts (this is a Shimano gear-set, bike bought in the Netherlands, roughly 5-10 years old)? If so what is the most likely size I'll need to buy?
  Reply
#2
OK, if the crank set is Shimano, then the removing tool will fit the cranks (but not necessarily the bolt... been there). The bolt could be 15mm or 16mm, a regular 16mm nut will not fit inside the hole in the crank. The tool to remove small spark plugs could fit (it is 16mm), it did for me. Some bike shops have 15mm and 16mm nuts that are turned down to fit inside the crank hole.
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
1,431
01-02-2022, 04:53 AM
Last Post: Jesper
 
20,845
07-19-2021, 12:00 AM
Last Post: rbx
 
1,915
06-24-2020, 04:13 PM
Last Post: CharleyFarley
 
17,035
12-13-2019, 09:53 PM
Last Post: RJD
 
12,719
03-21-2016, 02:29 PM
Last Post: budstutor
 
4,266
07-21-2014, 09:52 PM
Last Post: Painkiller
 
8,036
04-17-2014, 09:16 AM
Last Post: nfmisso
 
8,015
02-09-2014, 04:52 PM
Last Post: cny-man

Forum Jump:

[-]
10 Latest Posts
Entry level triathlon bike recs?
Today 12:59 AM
Have you Ever Tried an Electric Bike?
Yesterday 07:51 PM
Bobbing seems to make my bike go faster
Yesterday 07:46 PM
Help with finding a small frame ebike
Yesterday 07:33 PM
What are your thoughts on E-bikes?
Yesterday 06:53 PM
E-Bike
Yesterday 01:49 PM
How many kilometers do you get from bike...
Yesterday 02:16 AM
New Member
05-15-2022 05:35 PM
Help with a wheel please !
05-15-2022 12:06 PM
HELP ID My Vintage Sears Roebuck Bicycle...
05-14-2022 11:26 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Jesper
26 posts
no avatar 2. ReapThaWhirlwind
22 posts
no avatar 3. tran thanh
18 posts
no avatar 4. ichitan
7 posts
no avatar 5. Criminal
5 posts