The new series of French chainring professionals is matched to the current 10-speed shifting systems from Shimano and Sram. With a pitch circle of 104 mm, the chainrings are for a large part of all current cranks and provide superior performance. The shape of the teeth is optimized within the range of the access steps to a perfect and fast switching back, while the remaining teeth are designed compared little higher to suppress disengagement of track links.
Although optimized for 10-speed chains these chainrings are also for all 8- and 9-speed chains.
Material: Aluminum 7075-T6
Number of teeth: 42, 44 or 46 teeth
bolt circle diameter: 104 mm
Mounting Type: 4 hole
Web width: 18 mm
Color: black anodised
Note: Please review before buying your compatibility with the crank sprocket.
Chinook 10-speed chain ring