This is an OS20, race intended, double walled and pinned joint rim. It is 20" (451mm) for OS-20 tires only. This rim only works with OS-20 (451mm) tires -- not standard 20" (406mm) tires. If you do not know what OS-20 is, DO NOT BUY THEM!
Use: BMX Race
Side: Machined Sidewall
Material: 6061 T6
Width ID: 25mm
Width OD: 30.6mm
Color: Red anodized
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