Supports 200mm rotor size for larger disc brake calipers
Compatible with both 51mm international standard and 74mm post mount calipers for flexible installation
Includes Rainbow mounting hardware for straightforward setup
Available in multiple adapter lengths for various rotor and caliper sizes
Solid color options for aesthetic customization
Summarized by Shop
Details:
SRAM post mount disc brake adapters allow you to run your preferred rotor size. Standard mounting hardware is included. +20mm Disc Brake Adapter
140mm post, 160mm rotor
160mm post, 180mm rotor
180mm post, 200mm rotor
+40mm Disc Brake Adapter
140mm post, 180mm rotor
160mm post, 200mm rotor
180mm post, 220mm rotor
Adapter Lengths
20mm, 40mm
Compatible Rotor Sizes
140mm, 160mm, 180mm, 200mm, 220mm
Compatible Caliper Mounts
51mm (international standard), 74mm (post mount)
Included Hardware
Rainbow mounting hardware
Color Options
Black, Blue, Multicolor
Pattern
Solid
Summarized by Shop
5.0
15 ratings
5
4
3
2
1
Perfect fit & finish
ThunderMountain delivers again! Very quick and easy ordering process combined with fast delivery insured I was back on the trails with larger calipers and enjoying nature.
T
T. · June 11, 2025
👍
Worked well
C
craig · May 27, 2025
Worked for my application and I can now run larger brake rotors.