This Sun Envy BMX Racing wheelset are have tons of features at a great price, The rims are 28-hole double wall with eyelets and welded seams and machined braking surface on the rear. The hubs are BlackOps MX3200 sealed cartridge bearing cassettes with 3/8″ female axles. They have 150 engagement points for tight starts. The spokes are DT black stainless with black brass nipples. Included is a 16t Shimano type cog. These work with 20×1.40-2.25 (406mm) tires

Rim: Sun Envy 28H Blue
Front Hub: BlackOps MX3200 Sealed w/ Female Axle
Rear Hub: BlackOps MX3200 Sealed Cassette w/ Female Axle
Driver: 2-Pc Shimano type with 150pts of engagement
Cog: 16t
Spokes: DT SS Black w/ Black Brass Nips
Color: Blue