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Specialized fact carbon crankset removal free#
The bearings are pressed into these aluminum cups. Free Shipping (USA orders only) Free shipping on orders over 75.00. 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. Most adjusters found on 29mm & 30mm dia spindles can be removed to gain additional overall spindle length. 24mm Spindle Lengh: 22mm/24mm Spindle Length: 29mm & 30mm Spindle Length: OR. If crank has a pre-load adjuster, measure from the face of the adjuster to the end of the spindle. 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. Remove all crank spacers and wave washer if present. You will use a PF30 bottom bracket that has bearings pressed into the BB cups and the cups in turn press into the frame. For awhile now Specialized has been epoxying aluminum cups into the bottom brackets of their creaking-prone carbon OSBB PressFit bikes, such as the Venge, to. At first I had trouble getting all this to stay tight. I had a special extra long Ti bolt custom made by a machinist to allow the spacer. These are a road version of the cranks with an Experimental Prototype (Mattias Hellore) 25mm Hirth spacer. Most Specialized Carbon OSBB mountain frames are 73mm wide and 46mm inside diameter. This is your normal PF30 BB shell. I have a set of S-Works FACT carbon cranks on my 2011 Yeti ASR 5 Carbon. Unfortunately, this doesn't tell us much about the specific dimensions of the BB shell in an OSBB frame.
Specialized fact carbon crankset removal how to#
Carbon fiber is a very special material that requires particular care during assembly, storage and riding. I got stuck the first time I tried to remove my Specialized S-Works Power Cranks, so I thought it would be useful to document how to do it. Specialized OSBB is the term used by Specialized on many of their frames. The Specialized frame you have chosen featuring the S-Works Carbon crankset is among the finest of advanced composite products available in cycling.
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