Caliper : alloy, same design for all brands;
Disk : steel, 160MM, have various designs;
Assembly : thread model can be assembled to the rear hub directly, screw model need screws to assemble to the bikes;
Packing : caliper and disk packed separately, 100 sets per carton.
We will contact you within 1 working day, please pay attention to the email with the suffix “@bikeken.com”.