Lewis Disc Brake Mount Adapters are precision CNC machined from 7075 T6 Aluminum and offer a precise fitting to most frames and forks. These adapters enable the use of 180mm, 200mm or 220mm rotors on most Postmount frame/fork combinations.
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Forks & Frames with 140mm Post mount:
160mm rotor use: PM+20-A
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Forks & Frames with 160mm Post mount:
160mm rotor use: NO ADAPTER
180mm rotor use: PM+20-A
200mm rotor use: PM+40
Forks & Frames with 180mm Post mount:
180mm rotor use: NO ADAPTER
200mm rotor use: PM+20-A
220mm rotor use: PM+40