Rack-Locks are one part form, two parts function. Sure, they still look great and do a great job of keeping your seatpost in place, but they also provide a mounting position for the front struts of a rack. - Max torque 3-5Nm - AL-6061 Aluminum - Strong rack attachment points - 34mm-wide rack mount threaded for M5 bolts - Stainless steel pivot and bolt - Available in 30.0, 32.0, 35.0, and 35.4 mm sizes - Black anodized with laser-etched logo - 45g for a 32.0mm collar