absoluteBLACK Flat Mount Adaptors for Shimano calipers save weight and add style where it’s least expected. Machined from aerospace grade aluminum and paired with two titanium bolts, they deliver strength, lightness, and a refined finish. Compatible with Flat Mount standard—including Specialized SL8. The difference between Sram and Shimano options are only in the supplied bolts - bolts for Shimano calipers are slightly longer.

Option (Mass +/-1g): FRONT 140/160mm (9.8g with bolts) / FRONT Specialized SL8 160mm (9.0g with bolts) / REAR 160mm (9.9g with bolts)
Colour: Black or Titanium
Compatibility: ALL Flat Mount Shimano hydraulic disc brakes.
Material: cnc machined 7075 Txxx Aluminum / Titanium bolts
Finish: anodized

The difference between Sram and Shimano options are only in the supplied bolts - bolts for Shimano calipers are slightly longer.

How to mount Flat-Mount disc brake adaptors

Check the resources TAB for images for the orientation of the adaptors and the correct torque values of the bolts. For rotors up to 140mm diameter, oval cut-out in the adapter (circled in red) is pointing up. For rotors 160 mm diameter and bigger, oval cut-out in the adapter (circled in red) is pointing down.


Designed in UK. Manufactured in EU.