CeramicSpeed PF30 Bottom Bracket - 68mm 24mm Spindle Black CheckoutSpec= 10 x 1 x 120mm B17 is the Brooks flagship

B17 is the Brooks flagship model ideal for long distance sports touring trekking and MTB use

With the Saris Guardian trunk rack what you see is what you get

Lifetime PDWarranty

Chrome plated chromoly steel blade for durability and rigidity

CeramicSpeed PF30 Bottom Bracket - 68mm 24mm Spindle Black CheckoutSpec= 10 x 1 x 120mm B17 is the Brooks flagshipCeramicSpeed PF30 Bottom Bracket 68mm 24mm Spindle Black. The CeramicSpeed PF30 bottom bracket offers bearings with extremely low friction improved power transfer and a service life that far exceeds traditional steel bearings. TECH SPECS Bottom Bracket Shell I. D. 46 BB Frame Interface PF30 BB Shell Width (mm) 68 BB Shell Width (mm) 73 Weight 118 Spindle Interface Type Shimano Hollowtech II Spindle Interface Type FSA MegaExo Spindle Interface Type FSA