The Brembo GP4-RB 108mm Billet Two-Piece Radial Front Calipers are designed for riders seeking uncompromising braking performance with a distinctive race-derived design. CNC-machined from billet aluminum, the GP4-RB calipers deliver extreme rigidity and precision under high-load braking, while their two-piece construction reduces weight and improves cooling efficiency.
Equipped with Brembo’s 30/34 staggered piston setup, the GP4-RB calipers provide a perfect balance of initial bite, progressive lever feel, and fade-free performance on the street or track. Finished in black with the iconic Brembo logo, these calipers combine factory race technology with a stealth look.
Key Highlights:
- CNC billet aluminum two-piece construction for rigidity and reduced weight
- 30/34mm staggered pistons for balanced braking force and precise control
- Black anodized finish with Brembo logo
- 108mm radial mount spacing
- Optimized for superbike-level street and track applications
Included in the Box:
- Brembo GP4-RB Billet Two-Piece 108mm Radial Front Caliper Set (left & right)
- High-performance brake pads (pre-installed)
- Brembo authenticity/warranty documentation
Fitment Notes:
- 108mm spacing is standard on most Japanese superbikes.
- For European superbikes, choose the 108mm version of this caliper.
Recommended Pairing: Featuring staggered 30/34mm pistons, these calipers are best paired with
- Street / Performance: Brembo 19RCS or 19RCS Corsa Corta
- Track: XR0 19×18 or 19×20 Billet Racing
- Pro-Level: Brembo EVO 18×18 CNC