OS2O is NOT 22?. OS2O is 20, but bigger. There are two-wheel sizes in the 20? category the 20? on Jr/mini bikes which use the 45lmm diameter wheel in narrow widths (for 20-1/8? & 20-3/8? tires), and the conventional 20? which uses the smaller 4O6mm diameter wheel but in wider widths. OS2O is a 451mm wheel diameter in similar widths as 406mm wheels. OS2O tires are not compatible with Jr/Mini-sized rims, and OS2O rims are not compatible with Jr/Mini-sized tires.

• Use: Race
• Material: 6061 T6
• Walls: Double
• Joint: Sleeved
• Weight: 462g
• Diameter: 451 (20)
• Drilling: 36
• Valve: SV
• Sidewall:
• ERD: 430