Felt BREED Advanced GRX 820The BREED CARBON paired with Shimano's mechanical GRX 820 groupset. Performance and dependability come together for this race winning model. Made to race. The BREED CARBON with Shimano GRX 820 is a race winning gravel bike designed to go the distance across varied terrain and demanding conditions. With a wide gear range and the dependability of mechanical shifting, this model comes equipped to handle all of your training and racing needs across gravel.