Through Authenticate 
-Two Piece Design For Reducing Weight And Easy Assembly
-Drive-Side Arm And Spindle In One-Piece Design
-Smaller Tubular Crankarm
-Seamless Cr-Mo 28.6 Tube Made
-Available For Mid,Spanish,Euro,American BB Shell
Size:
-19mm-48Spline Interface
-Length: 170/175mm
Weight:
-745 g
