The Box Focus rear rim is a 36 hole, 20 inch rim perfect for BMX racing and smooth dirt jumping, trail riding. The rear rim features a sidewall good for breaking and spoke eyelets help increase strength. The Focus rim has a great strength to weight to weight ratio. Note that the Focus rear rim can also be used as a front rim.
20” x 1.75 (406mm): 362 grams/12.7 ounces (ERD 394)