Bbb proficonnect chain tool btl55all about cycling bbb think of the details so you dont have to founded by a former road racer they continue to make products with the explicit understanding of what makes a proper bike product that only a rider could have featuresprofessional chain rivet tool compatible with any chain including 11 speed fully adjustable to the size of the chain comfortable rubber handle with special peening blockage to be compatible with campagnolo 11 speed chains includes