The zipp 202 firecrest carbon clincher wheelset features the maintenance free 77177 hubset that boasts best in class durability improved bearing and needs no pre load adjustment the 77177 hubset has optimized flange geometry and spoke hole attachment pattern to optimize torsional and lateral stiffness creating a robust road wheel the zipp 202 firecrest carbon clincher wheelset features zipps exclusive resin based on materials used in motorsports braking systems effectively tol