So Dialed
O.S. MAX-B21 Competition 3.5cc (.21) Off-Road Nitro Engine Combo
O.S.

O.S. MAX-B21 Competition 3.5cc (.21) Off-Road Nitro Engine Combo

US$324.99US$493.99
34% Off

Vendor: AMain Hobbies

Added: Oct 9, 2026

Availability: Backorder

Get DealMore deals in Engines & Accessories

RC Reference Charts

Spring rates, tire compounds, shock and diff oil - every brand in one place.

See charts