This is the optional Hot-Racing Light Weight 3-Shoe Clutch & Flywheel Kit.

FEATURES: Fits the Traxxas 2.5, 2.5R, and 3.3 engines used in the Revo, T-Maxx,
Nitro Rustler, Nitro Stampede, and Jato
Light weight flywheel constructed of CNC machined 6061-T6 aluminum,
anodized blue in color
CNC machined 7075-T6 aluminum clutch shoes, anodized silver
Spring steel clutch springs
Thirty day limited warranty beginning at date of purchase-valid
in the United States only

INCLUDES: Flywheel
Three Clutch Shoes
One Brass Flywheel Collet
Three Clutch Springs