GEARS IN STOCK
**1985 uses smaller diameter crankshaft, verify engine year by visually checking crank diameter and make a note when ordering.
This is our billet 60% reduction for the 1985-1988 ATC250ES Big Red, ATC250SX and TRX250. Requires gear indicator cup delete and neutral wire mod. Please see frequently asked install questions. Our stiffer clutch springs are needed for this reduction and can be found in the "Parts" section. Ideal for 30"-32" tires.