All Rings CNC Machined 7075 Al Alloy
24T - 42T (BMX or MTB style teeth)
Thickness: 6, 10mm Patented Design
Ken Chang Ind.
Co., Ltd. NO 13,L Chu Wei, Chin Ling, Hsiu Shui, Chunghua Taiwan, R.O.C., Tel: 886-4-7684363 Fax: 886-4-7684373
