Shimano ultegra 6870 di2 groupset
Shimano ultegra 6870 di2 groupsetthe highest quality groupset outside of the professional peloton shimanos ultegra 6870 di2 groupset offers crisp accurate and reliable shifting at a fantastically light weight this shimano di2 option will be an excellent addition to the aspiring racer or to the rider who just enjoys optimal performance ultegra 6870 di2 groupset concentrate on performancethis ultegra 6870 di2 series features pro proven electronic shifting a direct trickle down from its bi