OS-20 (451mm) TNT M80 Double Wall Rim - 36H - Red Anodized 150mm It has a 7/8" top

It has a 7/8" top and will fit most modern steel or chromoly and some mid school BMX bikes

It is made with UTC Rubber (Ultimate Traction Compound) and is a great tire for BMX racing

Use: BMX Race

AME grips are made in the USA

This is made to fit Schwinn S7 20x1 3/4 (419mm) rims ONLY

OS-20 (451mm) TNT M80 Double Wall Rim - 36H - Red Anodized 150mm It has a 7/8" topThis 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 Size: OS 20in ISO: 451 Wall: Double Drilling: 36H Side: Machined Sidewall Material: 6061 T6 Valve: SV Width ID: 25mm Width OD: 30. 6mm ERD: 419 Color: Red anodized Note: This part was colored by anodizing,