variable section aluminium aero spokes rim with tubeless Ultra-Fit™ profile 2-Way Fit™ technology differentiated front-rear rims dynamic balancing monolithic FW body locking with light-alloy lever housing and Symmetric Action™ light-alloy lever welded joint and machined sides rim with toroidal milling G3 geometry™ (rear) oriented spoke holes aluminium nipples WEIGHT: 1395 grams