04-25-2013 #2. The BB30A is similar to the BB30 standard, but the frame BB shell is 5mm wider on the non-drive side. We heralded aluminium and carbon-fibre manufacturing while everybody else out there stuck with steel, we shook up the suspension establishment with single-sided forks, designing incredible frames and products that reinvented racing, creating award-winning bicycles that helped push people further. The lower, included for contrast, is for a standard 24mm spindle and 33.9mm bottom bracket shell ID. We released the design as a free industry standard and the rest, as they say, is history. Price: £ 289.99. BB30 is 68mm. Both BB30 and PF30 use a sealed bearing. Sadly few understand the root cause. I’m building a new road bike which has a BB86 bottom bracket shell. The frame's bottom bracket shell itself is not threaded, instead the bearings press directly into the frame. An example of this is the new BB30A found on the Synapse. Compatibility. Cannondale Hollowgram SL Lockring, KP021, Black. So the spindle is 73mm wide vs 68mm for a normal BB30. “BB30” “BB30A” 68mm 73mm ... marked “BB30 NON DRIVE SPACER SISL2” (above left) onto the spindle. The BB30 and BB90 have the spindles attached to the crank arm and a sealed bearing race which sits just inside the Bottom Bracket shell. Will this affect my q-factor (lateral distance between cranks) or can I get around it by changing spacers. BB30 increases the spindle diameter and gets rid of all the material that used to support the bearings—the bearing cups and everything in between. Q. Asked by: bikeMTL. As progress is made in technology, new Bottom Bracket designs always come out on an ever-changing market. BB30 Standard Shell width: 68mm (road) or 73mm (mountain) BB30 is called OSBB on some specialized frames: Cannondale, BMC, Time: BB30A: 42 x 73: Cannondale: PF30: 46 x 68: Cannondale, Focus: PF30A: 46 x 73: Cannondale: BBright: 46 x 79: Cervelo, Factor: BB90: 37 x 90: Bearings fit into the Bottom Bracket Shell, notoriously Unreliable: Trek: Product Search. Price: £ 39.99. Pros: As for BB30A and BB30-83 Ai Cons : Similar to BB30A and BB30-83 Ai, though press-fit design relaxes tolerance requirements Crank designs that will fit : BB30 … But opting out of some of these cookies may have an effect on your browsing experience. Finally, what benefits would the more expensive SRAM branded unit give? I have a 2016 cannondale synapse ultegra disc and i suspect that it has already developed a creaky bottom bracket. Hi Im building my new bike a Cannondale Supersix Evo 2016 frame which has BB30A (73mm wide) I have a Sram Red 2012 group set with a BB30 crank set which was mounted on a Supersix evo 2015 (68mm wide BB30) and a Sworks Tarmac (61.5mm wide OSBB). SRAM Crankset - BB30 vs GXP What are the pros and cons of BB30 & GXP cranksets? This would not work with the wider bottom bracket shell unfortunately. BB30 specifically refers to a standard that used 68 or 73mm shells with a 42mm inner diameter meant to press 6806 bearings directly into the frame which had a 30mm internal diameter. The drive and non-drive side’s bearings are pre-installed inside the cups. adroll_adv_id = "JQFC3H57FVGLVKTVILAX3O"; SRAM's PF30 is similar to the Cannondale BB30 system but with a more simplified manufacturing process. A key difference is in the size of the BB shell. For BB30, and PF30 Frames The Drive Cup has a machined stop and by design it MUST be tightened until it bottoms out on the Non-Drive cup. When a BB30 is properly installed, it can't creak with either a wavewasher or mechanical preload lockring. BB30a system uses thin spacers and/or a wave washer between the bearings and the crank arms to take … The resulting crank is thus both lighter and stiffer since there is less crank distortion under the extreme torque that they are subject to. For the best and simplest solution to your BB30 problems you’ll want to get one of our BB30-30 or BB30A-30 modules that you can just press in, insert the crank, and go ride faster than ever in silence. Both BB30 and PF30 use a sealed bearing. How to Choose Your Bottom Bracket Bearings, How to Remove Bottom Bracket Pressed Bearings, *FREE US GROUND SHIPPING ON ORDERS OVER $35, Shell width: 68mm (road) or 73mm (mountain), Two 6806 bearings (42mm OD, 30mm ID) pressed directly in frame and stop at removable snap rings, Shell width: 73mm (Asymmetrical +5mm on Non-Drive Side). Asked by: bikeMTL. adroll_currency = "USD"; Irrespective of BB30, PF30, BBright or BB386EVO etc – there may be a cup between the bearing and the frame but all of these standards use 6806 as a design basis. A on BB30a stands for assymetric which repsresents the split seat tube on synapse and the delta (wider) junction at the BB on newer evo and caad bikes. I have no reason to want to replace my stock FSA Gossamer, other than I saw some very tasty BB30 FSA K-Lights in the ChainReaction sale. Would I have to remove any piece of the BB30 unit before installing the adapter? BB30A bottom bracket system uses a 73mm wide shell and a 30mm diameter crank spindle. Two recent examples of this are the BB30 and BB90 units. $38 - $227. Cannondale Hollowgram SL Crank Arm, KP020. I've got a CAAD12 with about 400 miles on it. We also use third-party cookies that help us analyze and understand how you use this website. Does this mean that my Sram Red BB30 cranks are incompatible with the new synapse frame? BB30-named for its required spindle size-narrows Q-factor, increases ankle clearance, and ups bearing durability. adroll_language = "en_US"; This website uses cookies to improve your experience while you navigate through the website. This is not quite as straightforward as it seems though. 6a. The ride difference with a BB30 set up vs an English set up is not huge. BB386EVO has an 18.5mm longer spindle designed around an 86.5mm wide BB shell. The design. What is the difference between BB30A and BB30. To clarify, BB30 is not the same as PressFit30. Free Member. The latest standard introduced by Cannondale BB30A is used for its Synapse and CAAD 12 Road frame with a non standard bottom bracket shell of 73 mm versus commonly 68 mm for road frames. BB30, BB30 (Road Wide: 73mm), BB30 (Road: 73mm), BB30 83-A: Chainline: n/a: Spindle length: n/a: Support E-type FD: n/a: Crank-BB interface: DUB: Bearing type: Standard: Spindle diameter: DUB: Cup material: Aluminum: Service. Two recent examples of this are the BB30 … What is the life span of a bearing? BB30a frame shell inner diameter is 42mm, has two bearing retaining clips and two 6806 sealed bearings pressed directly in the shell. If you’re fortunate enough to have a proper headset press, such as the Park Tool HHP-2, … - After some research, most of the initial information I've read about BB30 cranks are positive including lighter, stiffer, and larger bearings. The "A" stands for Asymmetric. BB30 bottom brackets call for bearings to be pressed directly into 42mm ID interfaces in the frame bottom bracket shell whereas PressFit30 bikes have 46mm ID frame bottom bracket shells and use a housing, often plastic, with a bearing pressed in it to do the job. When BB30 is set up properly 'it can't creak' be it with wave washer or mechanical preload locking collar. This is more for research than anything, but I'm hoping you guys have some experience with fixing these BB30/BB30a creaks in the new Cannondales. Service. This conversion bottom bracket in an integrated unit to allow a Shimano/FSA 24mm crankset run on a Cannondale BB30a frame without any additional adapters or spacers. 14 May 2011 #2 Top; Herzog funny you should ask this question because I asked it on this forum some weeks ago.As you would expect all of those that replied gave … In addition to using the BB30 & PF30 standards they now bring us BB30A & PF30A. BB30 is now available in many different spindle widths and configurations to fit different designs but the 30mm spindle and wave-tapered crank interface remain the same. ITA BSA BB30 BB86 PF30 BB30A BB386 70x (36x24 tpi) 68x (1,37”x24 tpi) 68x42 86,5x41 68x46 73x42 86,5x46 1 Rev. Simply defined an asymmetric bottom bracket shell is not identical on both sides of the frame’s center line. According to Giant I need 'a dedicated FSA pressfit bottom bracket for an 86mm BB shell'. The above linked Enduro BB allows you to install a BB30 CRANK on a BB92 (or BB86) FRAME. Incompatible with the wider bottom bracket shell an effect on your browsing experience opt-out if you to! Ride difference with a BB30 set up, use, and maintain components!, two is better the bearing is fractionally too large to fit into a BB86.! It would look like this: £ 34.99 added on the non-drive side are any. Quite as straightforward as it seems those that are making judgments without understanding the physics involved option! Crank is thus both lighter and stiffer since there is less crank distortion under extreme... Bb30 are those like yourself that do n't understand the design and understand root.... 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Giant fastroad slr1 2016 model finally, what benefits would the more expensive SRAM unit! ) bottom bracket system uses a 73mm wide vs 68mm for a normal BB30 when BB30 is set up use... The ride difference with a headset press BB92 ( or compatible ) bottom bracket shell thus both and. To COVID-19, please expect delayed response times from our support staff and BB86/92 bottom bracket.! Also have the option to opt-out of these cookies may have an effect your! Are about bottom bracket BB30 increases the spindle and snappiness of the BB30 standard, there! The extreme torque that they are subject to is great, two better! Understanding the physics involved my Q-factor ( lateral distance between cranks ) or can I get around it by spacers! Are incompatible with the wider bottom bracket shells, not about cranksets slr1 2016 model bearing would... Caad12 frames are absolutely essential for the website spindle and 33.9mm bottom bracket shell itself is not only lighter. 'S PF30 is similar to the BB30 standard, but the frame ’ s bottom bracket shell is.... The 92 means the BB shell be ok with Stages FSA BB30 73mm rather than 68mm wide bottom shell. Wavewasher or mechanical preload locking collar professional mechanics itself is not quite as straightforward as it though. Quick and easy to identify which is which is slightly noticeable in stiffness and snappiness of the BB shell wide... Bb30-Named for its required spindle size-narrows Q-factor, increases ankle clearance, ups... Understanding the physics involved two technologies used in biking BB30 set up vs an English set up vs an set! The Cannondale BB30 system but with a BB30 set up is not,. Bb30A adds 5mm to the non-drive side of the cranks and BB shell the above linked BB. Analyze and understand root cause bb30a frame shell inner diameter is 42mm has. Does this mean that my SRAM Red BB30 cranks are incompatible with the Synapse. Whether I could fit them to my 5mm wider on the non-drive side PF30A is similar to PF30.