Thisis a 20 x 1-1/8 (451mm)wheelset (one front and one rear). The rims areBox Focus double wall rims featuring anodized finish and machined sidewalls. The 28H hubs areblack sealed cartridge with3/8 axles front & rear; the rear hubis aflip/flop which will work with most any 13t or larger freewheel (not included).The spokes are DT black stainless spokes with black brass nipples.These will accept 20 x1, 1-1/8 and 1-3/8tires (451mm).These will NOT fit standard 20″ (406mm) tires.

Color: Blue/Black
Valve: Presta Valve
Drilling: 28 Spoke
Size: 20×1-1/8″ (451mm)
Front Hub: Sealed 3/8″ Male w/ 100mm OLD
Rear Hub:Sealed Flip-Flop 3/8″ Male w/ 110mm OLD
Tire size: 20×1-1/8″ and 20×1-3/8″compatible