The Rhythm BMX Pro 20 x 1.75 rim is a double-walled racing rim made from 6061-T6 aluminum w/ a pinned seam & large hollow internal chamber to save weight.  

Rhythm rims are solid in color & do not have silver side walls.  All rims are machined on the brake surface to make the brakes work properly.  

• Holes: 36H 
• Width: 28mm
• Weight: 390 grams