RCM-SP-1046 1046 - 2.2mm Carbon Rear Topdeck (Stiff) (Option)Optional carbon rear topdeck for RC MAKER SP1 This topdeck stiffens the bulkheads and flex at the rear of the car. This results in the car being more stable on power out of corners, with slightly less rotation and more stability on slower corners as well. Manufactured from 2. 2mm Carbon Fiber RCM SP 1046 Includes: 1x 2. 2mm Carbon Rear Topdeck (Stiff)