Cold-forged under 2,500 tons of pressure, the R4 Series calipers which made up the complete WP Pro Big Brake Kits are made with strength and durability in mind. Utilizing standard, heavy-duty dust boots, this series of calipers is virtually a maintenance-free caliper requiring little to no annual cleaning of the pistons while retaining its signature WP Pro Big Brake Kit performance. Each caliper body, including the brake fluid channel, is machined using 3D CNC for optimized precision, accuracy of design, and caliper strength which offers the complete WP Pro big brake kit experience.
- Machining: 3D CNC
- Material: Forged T6061 Alloy
- Design Axles: Rear Axle
- Number of Pistons: 4
- Pistons Material: Stainless Steel
- Length: 110mm
- Depth: 45mm
- Compatible Rotor Thickness: 21mm to 30mm
- Rotor Diameter Range Compatibility: 312mm to 360mm
- Finishes: WP Gold, Black, Red, Blue, Laguna Seca Blue, WP Hyper Banana
For pricing on all WP PRO Big Brakes please complete the contact form located at the bottom of the home page, and we’ll get in touch with you within 24 hours.