ISIS drive

7075AL crank arms

Fully precision cnc machined 

7075AL chainrings,

ramped170,172.5,175mm lengths 

50/34T chainrings with spider bcd 110mm

BB Width:68 or 70 mm
Black Anodized

7075al chain rings bolts

515g with chain rings 
Patented double hollow hole design

 

View assembly PDF

 

ISIS drive

7075AL crank arms

Fully precision cnc machined 7075AL  chainrings,

ramped170,172.5,175mm lengths 

52/39T and 53/39T chainrings with spider bcd 130mm

BB Width:68 or 70 mm
Black Anodized

7075al chain rings bolts

520g with chain rings 
Patented double hollow hole 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