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or when powering up a steep climb
Shimano Dura-Ace BB-R9100 Hollowtech II Bottom Bracket
A budget friendly but rock solid option for riders wanting to enter the dropper market
and a built-in bottle opener opens bottles
Shimano Dura-Ace R9100 11 Spd Cassette Size:11-28t or when powering up aShimano Dura Ace R9100 11 Speed Cassette Shimano have retained the traditional close cassette ratios from previous editions of Dura Ace, but with the new R9100 groupset they have also introduced a wide range 11 30T cassette. All cassettes in the range will be compatible with the one rear derailleur so you can easily swap your cassettes out based on terrain. The cassette is manufactured from a lightweight alloy and carbon fibre spider that houses 6
