Through Authenticate 
-Two Piece Press Fit Design For Reducing Weight And Easy Assembly
-Drive-Side Arm And Spindle In One-Piece Design
-Seamless Cr-Mo 31.8mm Tube Made
-31.8mm square shape Arm with V (Ridge) At Two Sides
-Available For Mid,Spanish,Euro,American BB Shell
Size:
-19mm-8Spline Interface
-Length: 170/175mm
Weight:
-890 g
