Michelin Tyre Professional Guide - Customer Racing: Hill Climb

Overview

The document covers advice and pressure settings, technical data for various tire models, and specific recommendations for hill climb racing.

Advice and Pressure

This section offers guidance on tire pressure for both cold and hot conditions, which can vary based on ambient ground temperature, vehicle type, race duration, and ground temperature. Recommendations are provided for dry and rainy conditions, categorized by tire type (Single seater, Prototype, Tourism & production, GT) and air temperature.

Dry Conditions Pressure Recommendations:

Rainy Conditions Pressure Recommendations:

Note: Data is for informational purposes and may vary. Consult a professional for specific adaptations.

Michelin Pilot Sport H S5 C+

This tire is designed for immediate warm-up for optimal climbing times, offering instant warm-up due to a new synthetic rubber for enhanced performance, grip, and consistency. It also features increased longevity thanks to a new rubber formula that limits pick-up.

Available Sizes:

• 13"
• 15"
• 17"
• 18"

Technical Specifications:

Michelin Pilot Sport H S5C

This tire is also developed for hill climbing, offering a quality warm-up that allows drivers to enjoy performance, grip, and consistency throughout the climb.

Available Sizes:

• 13"
• 15"
• 17"
• 18"

Technical Specifications:

Technical Data

This section provides detailed technical specifications for various tire sizes, including:

• Diameter
• Size
• TL (Tubeless)
• Range
• Compound
• Wheel Recommended Width
• Tread Width (mm)
• Tyre Section (mm)
• Diameter Inflated (mm)
• Rolling Circumference (mm)

The data is presented in tables for each tire size, detailing specifications for different compounds (S5C and S5C+) and their suitability for hill climbing.

Recommendations

Michelin guarantees tire integrity for a limited number of stints, determined by factors such as maximum load, maximum speed, rim type, camber, and minimum hot pressure. A stint is defined as the mileage indicated, including a maximum of 2 pit stops and/or driving without a safety car.

Tyres should be replaced if they reach the indicated mileage or if they are completely worn out, whichever comes first. These recommendations are valid unless the tires are damaged (e.g., punctures, flat spots).

For rain tires, recommendations are for wet conditions only and not for dry or drying tracks. It is recommended that the temperature difference between the inside and outside shoulder of the tire be less than 20°C after a run.

Specific recommendations for pressure and number of stints based on camber are provided for each tire model and size, detailing minimum hot pressure for various conditions.

Example Recommendations (20/54-13 Slick S5C - S5C+):

• Usage: Hill climbing
• Charge max / Max Load (static + dynamic): 360 DaN
• Vitesse max / Max speed: 230 Km/h
• Jante nominale / Nominal Rim: 9.0 (+/-0,5) J 13
• Pression minimum à froid / Mini cold pressure: 1.0 Bar
• Relais / Stints: 50 Km

Pressure Recommendations based on Camber and Stints:

Similar detailed tables are provided for all listed tire models and sizes.