Designed for the intermediate to advanced BMX racer who wants a lightweight, durable berm burner that features great spec and won’t break the bank. Full Tectonic T1 biaxial hydroformed and butted aluminum frame with 86 mm BB shell and tapered headtube delivers a lightweight ride with great control. BOX One X5 pro carbon fork is lighter, stiffer, and features oversized technology for superior responsiveness and steering. 2-piece aluminum cranks offer high performance and low maintenance. 20" x 1.75" Arisun XLR8 race tires and Xposure XR double-walled, disc-specific rims with female axle-sealed race hubs – perfect for getting you out in front of the pack. Mechanical disc brake delivers reliable stopping power at high speeds. Features a 44-16 stock gearing for all sizes. Pro XL & Pro XXL come with 8.5" bars, Pro has 8" bars Suggested Rider Height 5'3" - 5'8" (Pro size) 5'7" - 6' (Pro XL size) 6' + (Pro XXL size) GEOMETRY & SIZING