The PBS ProComp S2 is a high-friction, sprint-focused compound designed for drivers who demand maximum braking performance with a refined level of control. Positioned above the S1 within the ProComp range, the S2 delivers a more aggressive response, making it the ideal choice for high-grip circuits, sprint racing, hill climbs, and rally applications where outright stopping power and consistency are critical.
Built from a high-metallic competition material, the ProComp S2 operates across a broad 100–850 °C temperature range, allowing it to perform confidently as temperatures rise during intense sessions. Its defining characteristic is its exceptionally high friction level (0.52–0.56μ) the highest in the entire ProComp family which translates into a noticeably stronger initial bite and more immediate braking response compared to lower-tier compounds.
Despite its aggressive nature, the S2 remains highly controllable. The compound is engineered to provide a predictable torque curve and stable modulation, allowing drivers to brake later and harder while still maintaining precision at corner entry. This balance of power and control makes it especially effective in modern motorsport environments where cars generate higher grip levels and demand more from their braking systems.
The ProComp S2 also maintains excellent consistency under heat, offering strong resistance to fade during repeated heavy braking. Its stable performance window ensures reliable pedal feel throughout a session, whether you're running a short sprint race or pushing through a demanding hill climb. At the same time, its robust formulation supports good durability for a compound in this performance category, making it a dependable option for competitive use.
For drivers stepping up from S1 or seeking maximum front-axle performance in the ProComp range, the PBS ProComp S2 delivers the highest bite, strongest friction, and most aggressive braking character without sacrificing the control needed to stay fast and consistent.
Specifications — ProComp S2 — High Friction Race Compound
| Material | High metallic (highest friction) |
| Working Temperature | 100°C – 850°C |
| Friction Coefficient | 0.52 – 0.56 µ |
| Application | Heavy braking circuits, slicks, high downforce, Time Attack, TCR, rally |
| Pad Thickness | 17.4 mm |
| Dimensions | 155.1 x 63.5 mm (W x H) |
| FMSI Reference | D946 |
