Name Dr. Pulley Roller Weights 21x17mm (x6) 9.0g Item No. SR211709 Brand DR. Pulley Roller Size 21 x 17 mm Weight 9,0 gr
Dr.Pulley SR roller weights have become increasingly popular. Due to their slightly different shape one set is enough to improve acceleration and top speed equally.
6 roller weights - 21 x 17mm / 9.0g