(RM Series)
Thorough Pursuit of Functionality
Its outstanding performance in domestic and international races ensures excellent functionality from racing to street use.
A pure racing master cylinder designed with a simple focus on performance.
Lineup
| Manufacturing Method | Forged | |
| Material | Aluminum | |
| Compatible Handle | Φ22.2 / Φ25.4 (1 inch) | |
| Cylinder Diameter | Brake | Φ14 / Φ16 / Φ17.5 / Φ19 (1-inch handle only Φ19) |
| Left Brake | Φ14 | |
| Clutch | Φ16 / Φ17.5 / Φ19 (1-inch handle only Φ19) | |
| Lever Size ▼ | Standard / Short | |
| Lever Shape ▼ | Brake | Power Lever (Straight lever for 1-inch handle) |
| Clutch | Straight Lever | |
| Banjo Bolt | P1.00 | |
| Color | Hard Anodized | |
| Clamp ▼ | Quick Release Mount Standard / Tank Stay / Mirror Holder / Reverse Thread Mirror Holder (Brake only) |
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| Ratio | Φ14 | 17mm |
| Φ16 | 17mm | |
| Φ17.5 | 17mm | |
| Φ19 | 17 (Brake only) / 19mm | |
| Ratio (1 inch) | Φ19 | 17mm |
Dimensions
Lever
The brake lever comes with a "Power Lever" for easy finger force, while the clutch lever is standard to avoid interference with the grip even at full pull.
*Photo shows VRC master cylinder
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Clutch: Straight Lever
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Brake: Power Lever (Straight lever for 1-inch handle)
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Clamp |
| *1-inch handle only: Mirror Holder |
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| Standard |
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| Tank Stay (M6×P1.0) |
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| Mirror Holder (M10×P1.25) |
Features
Radial Piston |
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| Unlike side-acting axial pistons, the lever pushes the piston vertically, reducing power loss and enabling precise control. |
Two Lever Sizes |
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| Available in Standard and Short sizes. Fits the rider's hand for natural operation. (1-inch handle: Standard only) |
Safe During Falls |
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| Quick release mount allows fast installation/removal with a single bolt. Lever tip folds to reduce damage to the body. |
1-Inch Handle Compatible |
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| Available for cruisers like Harley, for riders who prioritize riding performance. |
Overhaul Service |
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| Detailed overhaul service available thanks to in-house production (items received and returned). |
| More Details |
Contents
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Type Comparison / How to Choose
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Compatibility Calculation
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Required Parts for Installation
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What is the Ratio Adjustment Function?
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Titanium Upgrade
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Maintenance Method
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Race Achievements
