3/8" 9T RSD Cheap Replacement Wheel Double Wall Black
Some of the Walmart Type bikes have a 3/8" Axle on the Rear.
Normally these days you would have a 14mm rear axle and 3/8 inch on your front wheel. If your wheel bearings got loose or you bent your rim this is your next rear wheel and its a higher quality wheel. Unsealed. 36H Rear Black 20 x 1.75.
Some of the Walmart Type bikes have a 3/8" Axle on the Rear.
Normally these days you would have a 14mm rear axle and 3/8 inch on your front wheel. If your wheel bearings got loose or you bent your rim this is your next rear wheel and its a higher quality wheel. Unsealed. 36H Rear Black 20 x 1.75.