SM-BBR60 external zefal arctica insulated bottle Thoughtful design makes filling cleaning

Thoughtful design makes filling cleaning and most importantly staying hydrated on the trail easier than ever

cassette spacing with a chain compatibility of

but also a 26" mountainbike still with lots of life in it

X2 outsole: Vibram grip for traction

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SM-BBR60 external zefal arctica insulated bottle Thoughtful design makes filling cleaningFEATURES of the shimano,Ultegra SM BBR60 Bottom Bracket Bottom bracket Optimum power transfer Specifications Shell width: 70mm 68mm Generation: Ultegra BBR60 Crank interface threaded Average weight: 77 g Threaded BB shell width_70mm Hollowtech II BB_threaded BB type Small ball bearing Threaded BB shell width_68mm