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Shimano R203P/S Disc Brake Adapter for 203mm Rotor, 74mm Caliper, 51mm IS Frame
Shimano R203P/S Disc Brake Adapter for 203mm Rotor, 74mm Caliper, 51mm IS Frame
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Shimano disc brake adaptors.
  • Click in individual parts to see detailed descriptions of application
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Product Review

Shimano disc brake adaptors.
  • Click in individual parts to see detailed descriptions of application
Item Specifications
Weight21g
Rotor Size203mm
Caliper Type74mm Post Mount
Brake Caliper Mount74mm Post
For Rotor DiameterFront 203
Frame/Fork Mount51mm IS Front


  • Disc Rotor Size: 203mm
  • Caliper Mount Type: 74mm Post
  • Brake Caliper Mount: 74mm Post
  • Rotor Diameter Compatibility: Front 203mm
  • Frame/Fork Mount: 51mm IS Rear
  • Approximate Brake Weight: 21g

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