Renthal Sprocket - 257--428-13GP Yamaha YZ 85 2002-2026 Brand_Headwinds 20 lb/in Height Adjustment Lowers

20 lb/in Height Adjustment Lowers 1

Sealed and weatherproof - perfect for outside use

92 mm Piston Material 4032 Aluminum Alloy Bore - Oversize +3

All fenders MUST be test fitted

Diameter of the bolt is turned slightly smaller than the actual crankshaft diameter

Renthal Sprocket - 257--428-13GP Yamaha YZ 85 2002-2026 Brand_Headwinds 20 lb/in Height Adjustment LowersFeatures CNC machined from case hardened and core refined 655M13 nickel chromium steel Machined self cleaning mud grooves at each tooth to prevent mud buildup help increase wear resistance Ultralight design has a 10 15% weight savings Specs Chain Size 428 Product Name Sprocket Tooth Count 13 Material Steel Units Each Mounting Position Front Riding Style Off Road