SRAM RED Crankset - 172.5mm 2x 12-Speed 50/37t 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 Length-60mm Extender Perfect for BMX and track

Perfect for BMX and track bikes with 1/8 cog thickness

DRIVER 1pc cassette driver

Tire Technology MicroSkin RaceGuard Primary Color Black Tire Compound Addix Tire PSI 36-65 TPI 67TPI Tubeless Technology Tubeless Easy Tire Diameter/ISO 29/622 Bead Folding e-Bike approved Yes Tire Type Tubeless Ready Tire Weight 895g Tire Width 2

Rear derailleur is compatible with 10-50t and 10-52t cassettes

SRAM RED Crankset - 172.5mm 2x 12-Speed 50/37t 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 Length-60mm Extender Perfect for BMX and trackWhen SRAM found ways to make their lightest and stiffest crank even lighter they went for it. A new optimized layup drops 29g from the hollow carbon arms. The X Range gearing technology minimizes cadence changes during front shifts maximizing your ability to put power down. Plus they're offering more crankarm lengths than ever before to ensure this crank works for you. One piece 2x chainring results in a lighter weight stiffer more durable crankset