The sram roam 60 carbon clincher 275 wheel front the new roam 60rsquos careful combination of shape width design and materials yields a new carbon wheelset that gives bikers the speed enabling features they wantmdashand the critical reliability they need lightweight high strength 30mm carbon rims increase control and confidence in any terrain the precision engagement of double timetrade hubs ensure quick consistent power delivery from the pedals and a durable smooth rolling