Wilwood 140-15815 FSL4R Rear Inboard Sprint Car Brake Kit

The Wilwood FSL4R Rear Inboard Sprint Kit is a fully engineered bolt-on disc brake system designed specifically for sprint car quick change rear ends with 3.00 x 46 splined axles. This complete kit delivers championship-level braking performance with an emphasis on lightweight construction and heat management.

Key Features:

• 12.19" x 1.25" Super Alloy vented rotors with dynamic mount rotor axle clamp for lowest rotating weight in sprint racing
• Forged Superlite 4 radial mount calipers with Type III hard anodize finish for superior durability
• BP-40 compound brake pads deliver consistent, fade-free stopping power
• Advanced rotor materials provide high durability, extended wear life, and superior heat control
• Complete kit includes axle clamp, dual mount rotor adapter with T-nuts, radial mount bracket assembly, and all mounting hardware

This inboard brake configuration is ideal for sprint car racers seeking maximum performance with minimum unsprung weight. The radial mount caliper design ensures rigid mounting and precise pad-to-rotor alignment for optimal braking consistency throughout the race.