If the crank is damaged, this can result in loss of structuralintegrity, which may result in serious personal injury or death. Reference should also be made to Barnett’s or some other comprehensive bicycle manual.Warning! Failure to follow the torque specifications in this installation guide will void your warranty, but most importantlymay result in damage to the crank which may not be visible. Failure to follow this warning may result inserious personal injury or death. Do not attempt installation of anycomponent if you do not have experience and training as a bicycle mechanic. This short form installation guide contains instructions and warnings, plus torque specifications, to be used in conjunctionwith the owner’s manuals and instruction guides supplied with your bicycle.!!!Warning! Failure to follow these instructions may result in a catastrophic failure of the frame and/or its components whileriding, which may result in serious personal injury or death.Warning! Bicycle assembly is a complicated task which requires training and experience. Carbon fiber is a very special material that requires particular care during assembly, storageand riding. This made the frame essentially a BB30 frame (68mm x 42mm).S-WORKS CARBON CRANKSET INSTALLATION GUIDETHIS BRIEF INSTALLATION GUIDE CONTAINS IMPORTANT INFORMATION.PLEASE READ CAREFULLY AND STORE IN A SAFE PLACE.Congratulations! The Specialized frame you have chosen featuring the S-Works Carbon crankset is among the finest of advancedcomposite products available in cycling. The bearings are pressed into these aluminum cups. This effectively widens the shell to 68mm, which is what most cranks spindle lengths are based on.Īfter a few years, Specialized changed their OSBB road frames by permanently bonding aluminum cups into the 61mm wide shell. If you are using cranks other than the short-spindle FACT cranks on a Carbon OSBB road frame (61mm wide BB shell), you should add 3.5mm of cups spacers to each side between the cup and the frame. If using these cranks with a Wheels Mfg PF30 bottom bracket on a 61mm wide shell, you do not need to use any additional cup spacers between the BB cups and the frame. These cranks have shorter spindles, and do not fit bikes with 68mm or wider shells. OSBB Carbon road frames with a 61mm wide shell were designed to work with Specialized FACT cranks. The exception being the Demo frames which are 83mm wide and 46mm ID.īeginning 2011, OSBB Carbon road frames were made with a 46mm inner diameter shell and a 61mm wide shell. You will use a PF30 bottom bracket that has bearings pressed into the BB cups and the cups in turn press into the frame. Most Specialized Carbon OSBB mountain frames are 73mm wide and 46mm inside diameter. This is your normal PF30 BB shell. Unfortunately, this doesn't tell us much about the specific dimensions of the BB shell in an OSBB frame. Specialized OSBB is the term used by Specialized on many of their frames.

Specialized fact carbon crankset