BUY ANY CRANKSET AND WE'LL PRE-INSTALL THE BOTTOM BRACKET FOR YOU (BUT NOT THE CRANKARMS/CHAINRING DUE TO POTENTIAL SHIPPING DAMAGE). SAME WHEN YOU BUY ANY BOTTOM BRACKET. The Lightning frame is one of the lightest - if not the lightest - steel single speed/fixed gear frames out there at under 5 pounds (55cm). It features a triple-butted Columbus Spirit frame and a paint-matched carbon fork that delivers a light, responsive ride. The Lightning frame features our Wabi hybrid track-road frame geometry - designed to be nimble for quick dashes through the city or comfortable for long rides on the backroads. The latest colors are Summit Blue, a medium solid blue, and Crystal Grey, a dark pearlized grey. We also have some remaining stock of Pearl Black, a dark pearlescent black, and Sunlit Silver, a brilliant silver. The Lightning also features our Wabi Pro headset, a no-logo version of the FSA Orbit-X, and Wabi Sub-15s as stock parts. TECH SPECS Frame: TIG-welded Columbus Spirit triple butted, heat treated oversized tubing. Fork: Carbon fork blade, with 1-1/8" aluminum steerer tube, painted to match frame. Headset: 1-1/8" threadless sealed bearing headset. Bottom bracket compatibility: 68mm English standard bottom brackets. Spacing: 100mm front; 120mm rear Seatpost compatibility: 27.2mm Tire compatibility: 28mm (may be reduced depending on rim width of wheelset and tire type) Weight: 4.8 lbs for frameset+fork (55cm) Eyelet note: There are no fork, dropout or stay eyelets on this frame. Chainstay note: The drive side chainstay has an indented design on the exterior side to ensure clearance for crankarm spiders and chainrings. SIZING We highly recommend reviewing our sizing page before purchasing. Look at both your height and your actual inseam / standover height. The guide below can also provide some general guidelines. RIDER HEIGHT FRAME SIZE STANDOVER HEIGHT 5'4 - 5'7 49CM 30.2IN 5'7 - 5'10 52CM 31.3IN 5'10 - 6'1 55CM 32.5IN 6'1 - 6'3 58CM 33.6IN 6'3 - 6'6 60CM 34.8IN Frame size is measured center-to-center of the seat tube. See more on our sizing page. COMPONENT SIZING Note that our frames are designed around a 170mm crank arm length, a 24mm setback seatpost and varying stem lengths (based on frame size and height). You can find our stem length recommendations under the 'DETERMINING BIKE COMPONENTS FIT' section on the sizing page. If you choose different components, it may impact the fit. IMPORTANT NOTE ON COMPATIBILITY We cannot guarantee the fit of any specific component set other than the ones we sell with our complete bikes. If you are planning a specific build please contact us to see if we are aware of any issues. Even so, we will be unable to offer refunds based on lack of fit with any third-party components.
