Shimano Ultegra / 105 SM-BBR60 Hollowtech II Bottom Bracket Road Bike BB Shimano Ultegra / 105 SM-BBR60 Hollowtech II Bottom Bracket Road Bike BB

This is a Shimano SM-BBR60 Bottom Bracket Unit. Weighing in at 77g, the SM-BBR60 Ultegra Bottom Bracket is 14 grams lighter than the 6700 bottom bracket offering professional level technology...

This is a Shimano SM-BBR60 Bottom Bracket Unit. Weighing in at 77g, the SM-BBR60 Ultegra Bottom Bracket is 14 grams lighter than the 6700 bottom bracket offering professional level technology...