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

How to set up a flat mount rotor for 160mm from 140mm

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.

How to set up a flat mount rotor for 160mm from 140mm

Old 06-18-19, 09:45 AM
  #1  
NoWhammies
Senior Member
Thread Starter
 
NoWhammies's Avatar
 
Join Date: Jul 2017
Location: Vancouver, BC
Posts: 825

Bikes: Argon 18 Gallium, BH G7

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 341 Post(s)
Liked 31 Times in 25 Posts
How to set up a flat mount rotor for 160mm from 140mm

I have a Shimano flat mount disc brake on my front wheel/fork. Currently the setup is for a 140mm rotor and I want to switch it for 160mm.

Question. I know I need to flip the flat mount over, so the 160mm arrow marked on the flat mount is pointing up. What I don't know is, how does the caliper and the flat mount come apart. Or do they even need to come apart?

For example, do I separate the flat mount from the caliper, turn the flat mount upside down so the 160mm marking is pointing up , re-attach the flat mount to the caliper, and then re-attach the whole thing to the fork?

Or does the whole unit get switched upside down? This makes no sense to me though, as there will be cable issues.

I did some web searching but couldn't find any tutorials on what to do, and my Zinn maintenance book doesn't talk about either.

Thank you.
NoWhammies is offline  
Old 06-18-19, 09:56 AM
  #2  
cobba
Senior Member
 
Join Date: Aug 2006
Posts: 1,677
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 93 Post(s)
Likes: 0
Liked 5 Times in 5 Posts
Arrows point to direction that the rotor rotates when you're riding the bike.

https://www.bike-discount.de/en/buy/...adapter-732856

Flip the adapter around, not the adapter and caliper.
.

Last edited by cobba; 06-18-19 at 10:49 PM.
cobba is offline  
Old 06-18-19, 10:07 AM
  #3  
Elvo
Senior Member
 
Join Date: Oct 2006
Location: Orange County, CA
Posts: 4,075
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 345 Post(s)
Likes: 0
Liked 6 Times in 6 Posts
Unscrew the 2 bolts holding the caliper/adapter to the fork. Take the adapter and rotate it 180 degrees. Reinstall and torque to spec
Elvo is offline  
Old 06-18-19, 11:23 AM
  #4  
NoWhammies
Senior Member
Thread Starter
 
NoWhammies's Avatar
 
Join Date: Jul 2017
Location: Vancouver, BC
Posts: 825

Bikes: Argon 18 Gallium, BH G7

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 341 Post(s)
Liked 31 Times in 25 Posts
Excellent. Thanks @cobba and @Elvo.
NoWhammies is offline  
Old 06-18-19, 09:38 PM
  #5  
NoWhammies
Senior Member
Thread Starter
 
NoWhammies's Avatar
 
Join Date: Jul 2017
Location: Vancouver, BC
Posts: 825

Bikes: Argon 18 Gallium, BH G7

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 341 Post(s)
Liked 31 Times in 25 Posts
Successfully installed the 160mm rotor on my bike tonight. Thanks for all of the help/guidance.
NoWhammies is offline  

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.