02-'21 for Yamaha YZ85 WISECO Piston Kit Pro-Lite 47.50/Std Yam Title: Replacement Exhaust Valve for

Title: Replacement Exhaust Valve for 89cc/91cc Super Stock Heads

Option: For Custom Radial Mount Brake Caliper

Feature a matte black or black and machined finish

Expanded vinyl cover

Manufacturer: Alloy Art

02-'21 for Yamaha YZ85 WISECO Piston Kit Pro-Lite 47.50/Std Yam Title: Replacement Exhaust Valve forManufacturer: Wiseco MPN: 805M04750 Title: Piston Kit Size: Standard Bore 47. 50mm These kits offer lightweight forging for instant throttle response and maximum torque. Computer engineered piston skirt profiles provide minimal cylinder wall friction. Anti detonation grooves and ring land diameter eliminates ring blow by while maximizing engine performance. 4 Stroke Pistons: Dedicated forging for lightweight and superior strength; Race ready dome