The Brembo GP4-RX 108mm Monobloc Radial Front Calipers are a flagship upgrade for riders demanding the highest level of braking performance on Japanese superbikes. CNC-machined from billet aluminum and finished with a nickel coating, the GP4-RX offers extreme rigidity, consistent braking feel, and superior thermal stability under racing conditions.
Featuring four 32mm pistons and Brembo’s optimized fluid channel design, the GP4-RX calipers deliver sharp initial bite, precise modulation, and fade-free performance on the street or track. The nickel-plated finish enhances both durability and appearance, giving your superbike a true factory racing look.
Key Highlights:
- CNC billet aluminum monobloc construction
- Nickel-plated finish for thermal stability and durability
- Four 32mm pistons for superior stopping power and lever feedback
- 108mm radial mount spacing
- Derived from Brembo’s MotoGP and WorldSBK racing technology
Included in the Box:
- Brembo GP4-RX Monobloc 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 100mm version of this caliper.
Recommended Pairing: With 32mm pistons, these calipers are best paired with
- Street / Performance: Brembo 19RCS or 19RCS Corsa Corta
- Track: Brembo XR0 19×18 Billet Racing
- Pro-Level: Brembo EVO 18×18 CNC
