(Dark Edition RD Series)

Enjoy the Forged Texture - Dark Edition


Focused on the perfection of the forged shape (beauty of surfaces and texture), finished with black hard anodizing after shot peening in a matte black design.
A pure racing master cylinder that simply pursues performance.


Main Photo
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Lineup


Manufacturing Method Forged
Material Aluminum
Handle Compatibility Φ22.2
Cylinder Diameter Brake Φ14/Φ16/Φ17.5/Φ19
Left Brake Φ14
Clutch Φ16/Φ17.5/Φ19
Lever Size ▼ Standard/Short
Lever Type ▼ Brake Power Lever
Clutch Straight Lever
Banjo Bolt P1.00
Mount Radial
Color Black Anodized
Clamp ▼ 2-Point Mount
Standard/Tank Stay/Mirror Holder/Reverse Thread Mirror Holder (Brake Only)
Ratio Φ14 17mm
Φ16 17mm
Φ17.5 17mm
Φ19 17 (Brake Only)/19mm


Dimension







Lever Type & Size



The brake side is equipped with a "Power Lever" for easier finger force, while the clutch side uses a standard lever that does not interfere with the grip even when fully pulled.
*The photo shows the VRC Master Cylinder


Clutch: Straight Lever


Brake: Power Lever


Clamp


Standard
 
Tank Stay (M6×P1.0)
 
Mirror Holder (M10×P1.25)
 





Features




Radial Piston
Unlike axial pistons that push sideways, the lever presses the piston vertically, minimizing force loss and enabling precise control.
 
Two Lever Sizes
Available in standard and short sizes to fit the rider's hand and provide natural operation.
 
Foldable Lever
The lever folds on impact to reduce damage to the master body (repair tips available).
 
2-Point Clamp Mount
Strong clamping force with two mounting bolts. (Compatible handle diameter: Φ22.2)
 
Overhaul Service
In-house production allows detailed overhaul service (on consignment).
 
Details Here


Contents

  • Type Comparison / How to Choose
  • Compatibility Calculation
  • Required Parts for Installation
  • What is the Ratio Adjustment Function?
  • Titanium Upgrade
  • Maintenance Method
  • Race Achievements