Description
WIDE CENTER RIB
- Improves directional stability and precise steering response
LARGE TREAD BLOCKS
- Large tread blocks on the outside tread maximizes lateral grip for improved cornering.
HIGH GRIP RACE COMPOUND
- Reaches Optimal operating temperature quickly and provides consistent Performance.
SETUP GUIDELINES
- Operating Temperature: 71°c to 104°c (160°F to 220°F)
- Tire Pressure:
| Vehicle Weight | Cold Inflation Pressure | Hot Inflation Pressure |
| Less than 800 Kg | 17-22 psi | 22-29 psi * |
| 800 – 1,000 Kg | 20 -26 psi | 24 – 32 psi * |
| 1,000 – 1,400 Kg | 23 – 27 psi | 28 – 40 psi * |
| More than 1,400 Kg | 27 – 35 psi | 37 – 42 psi * |
* Or as recommended by the vehicle manufacture.
- Camber: -1.0° to -3.0° (the Proxes R888R generally requires less negative camber than the Proxes RA1)
- Caster: As much positive as possible
- Rim width: a tire size that falls within the range of midpoint to maximum rim widths is recommended
- Wet conditions: increase tire inflation pressure by 6-10 PSI to reduce the possibility of hydroplaning
- Driving style with less slip angle is recommended (when compared with the RA1)
- Break-in procedure for new R888R at full tread depth: scrub the tire clean of any mold release chemical. Bring new tires up to operating temperature gradually over the course of a few laps to minimize graining
PROXES R888R SAFETY ADVISORY
- The tread compound is specifically designed to operate under racing conditions making it difficult to achieve optimum adhesion levels under normal street driving.
- Performance limitations are particularly evident in low ambient temperatures or during the spring and fall when ambient temperatures fluctuate significantly.
- Wet performance is limited when operating outside the optimum temperature range, and when the tire is at less than full tread depth.
- Do not use the tire if it has cracked.
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