Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Help! Broken preload/lockring bolt on Rotor crank

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Help! Broken preload/lockring bolt on Rotor crank

Old 04-13-17, 06:52 PM
Thread Starter
Join Date: Oct 2009
Posts: 29
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Help! Broken preload/lockring bolt on Rotor crank

Non-Drive side, preload ring that has that tiny little silver bolt, you know, the one you shouldn't overtighten? Yeah, that one. Please tell me someone can tell me where I can get that little bolt QUICKLY. Like Amazon, etc? Help!
ETC12 is offline  
Old 04-13-17, 09:07 PM
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 31,491

Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!

Mentioned: 32 Post(s)
Tagged: 0 Thread(s)
Quoted: 1142 Post(s)
Likes: 0
Liked 20 Times in 19 Posts
If you can get the pieces of the broken bolt out, take them to a fastener supply shop (Fastenall, Grainger, etc.) and have them match the diameter, pitch and length. I assume it's a standard metric bolt like an M3, M4 or M5 and these are widely available. If it's a common length and head type even an auto parts or large hardware store might have it.
HillRider is offline  
Old 04-14-17, 08:10 AM
Generally bewildered
WizardOfBoz's Avatar
Join Date: Aug 2015
Location: Eastern PA, USA
Posts: 1,866

Bikes: 2014 Trek Domane 6.9, 1999 LeMond Zurich, 1978 Schwinn Superior

Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 657 Post(s)
Liked 27 Times in 23 Posts
You could call Rotor Support (see here) and ask what size that bolt is, then purchase a similar bolt at the store. The support page has the maintainence manual, btw.
WizardOfBoz is offline  
Related Topics
Thread Starter
Last Post
Bicycle Mechanics
03-08-12 10:01 PM
Road Cycling
08-18-09 01:07 PM
Road Cycling
06-27-09 08:53 AM
Road Cycling
05-13-09 08:31 AM
10-08-08 03:41 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.