Octane One Zircus Frame. The Octane One Zircus Frame is an aluminium all-round dirt frame. Used by pro FMB rider, Simon Pages, this lightweight and strong aluminium frame comes with a pro level dirt jump geometry that is designed to fit 26″ wheels, forks with 80-140mm travel and a single speed drivetrain All-Round Aluminium Comfort. The Zircus Frame is designed for those who prefer the comfort and feel of an aluminium frame. With more slack and stability than steel frames, the Zircus Frame comes with a lower bottom bracket for enhanced stability. The top tube and chainstays are slightly longer than those in the Void Frame whilst the headtube angle is more slack. With the optional removable derailleur hanger, you can convert this bike into an off-road machine with gears if, and when, needed Features: Frame: A6061-T6 Custom formed and butted tubesRecommended Fork Travel: 80-140mmFork Compatibility: All forks with 1-1/8″ (1 125″) or tapered 1.5 – 1-1/8″ steer tubeHeadtube: Integrated tapered IS42/IS52Headtube Length: 115mmHeadtube Stack: 115mmDisc Brake Standard: Post mount disc brake mount BB Shell: Standard threaded 68mm (compatible with MTB cranks and 3pcs BMX cranks with Euro BB)Biggest Chainring: Up to ~34tMTB Hub Spacing: 10x135mm, suggested bolt-on hubs Disc Brake Mount: IS (International Standard)Maximum Rotor Size: up to 185mmTyres (Maximum Recommended): 26″x2 35″Seatpost/clamp: 30.9mm/34 9mmMaximum Seatpost Insertion: 300mmOptional bolt-on derailleur hanger available separately (not included)Weight: ~2 09kgBuy Octane One Frames & Forks from Chain Reaction Cycles, the World’s Largest Online Bike Store.