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SHIMANO Dura Ace Bottom Bracket BB-R9100 | BSA
ROAD BOTTOM BRACKET | SHIMANO BIKE COMPONENT
General bike chat that does not fit elsewhere. Forum rules. Are the re any benefits getting the Dura Ace? If external is it this one? I'd have thought either the Ultegra or the Dura-ace would be an improvement quality wise over the Tiagra. Seem to be lasting OK.
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No bottom bracket is as reliable and maintenance-free as an external threaded one, and it doesn't get any better than the Shimano Dura-Ace SM bottom bracket. Coupons can not be combined with promotional gift certificates, however, purchased gift certificates may be used with the coupons. If you would like to use your coupon with a purchased gift certificate, please leave the gift certificate information in the comments section at checkout, and they will be applied during processing on the backend. Road Colnago Bianchi Kestrel.
Like the series Dura Ace bottom bracket, the BB-R is both lighter and more efficient than previous generations while remaining an industry leader in weather resistance and durability. The cone profiles have also been redesigned for increased durability so the BB-R can take the same amount of abuse as its larger-bearing forebears. Available in English-threaded 68 mm shell and Italian-threaded 70 mm shell width versions. Compatible with the 24 mm spindles found on Hollowtech II cranks. Claimed weight is 65 g.