TTW-2500-S 2-1/2" Aluminum Wheel Set (2pc. SET) Approximate Weight: .81 oz 2-1/2" Wheels! These Wheels are machined concentric from solid Aluminum Barstock. - Tru-Turn Wheels are Lightweight, Precision and Durable! Our Wheels are being introduced in 7 different sizes with many configurations and shapes to come. - These Wheels are Race Ready and Fun Fly Tough! All Tru-Turn Wheels come pre-mounted with an O-ring tire. Our Wheels come pre-drilled with a standard center hole. You drill the center hole to your axle size. Wheels mount on your landing gear with your standard hardware. Three piece sets for specific aircraft available upon request. Price $ 23.95