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Flat Mount Adapter (IS-FM)



This adapter allows you to use a flat mount caliper on a frame or fork that  was designed using the IS mount standard.


  • Rear IS mount (Frame): This adapter will only work with 160 mm. rotors.
  • Front IS mount (Fork): This adapter will only work with 180 mm. rotors.
  • Tested with Shimano, SRAM and Campagnolo flat mount calipers. This adapter is intended to be used with 140 mm. calipers. 160 mm specific calipers like ones made by Hope And Campagnolo  will increase the rotor size by 20 mm.


  • CNC Machined from 6061-T6 Aluminum, tumbled and anodized.
  • Weight: 15 g (without screws)
  • Weight: 20 g (with screws)


  • Caliper position is adjusted using shim washers. Six washers are included with each adapter.  More washers or special tools may be required for proper adjustment.

We ship twice a week and aim to have your kit to you within 5 working days.

Brexit - We ship 80% of our kits international. All customers in the EU will have UK sales tax (20%) removed at checkout. On import you will be charged your local sales tax by our courier.

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