The Xenon Expert XL features a full parts overhaul. The mid tier Xenon line is a game changer with all bikes disc ready to convert them to a full disc brake setup with Radio's disc brake kit. Tey spared no details here, from forged disc ready mounts with tensioners, to their own aftermarket Junior Clipper rims, the Xenon as a natural born winner. ###section### Product Specs FRAME MATERIAL: hydroformed 6061 T6 alloy, forged & disc brake mount ready dropouts, with int. chain tensioners WHEEL SIZE: 20" TOP TUBE LENGTH: 20.5" CHAIN STAY LENGTH: 13.8" HEAD TUBE ANGLE: 73.5° SEAT TUBE ANGLE: 71° FORKS: cr-mo, 1-1/8″ butted steerer tube, cr-mo fork legs, 23mm offset BARS: 6061-T6 alloy STEM: Radio, Cobalt-toploader, ext. 50mm, alloy HEADSET: FSA, No.28, integrated headset, sealed, 1-1/8″ BRAKE MOUNTS: Welded BRAKES: PROMAX “MV-85” alloy brake rear FRONT HUB: Radio, Xenon, alloy cnc, fully sealed, 32H, 3/8″ cr-mo axle FRONT RIM: Radio, Clipper Expert, 32H, alloy, sleeved joint REAR HUB: Radio, Xenon, alloy cnc, fully sealed, 32H, disc brake cassette, 3/8″ cr-mo axle REAR RIM: Radio, Clipper Expert, 32H, alloy, sleeved joint TYRES: Radio, Oxygen, 20″x1.6″ SPROCKET: Radio, 42T, alloy CRANKS: Radio, Xenon 3pc crank, forged/cnc, alloy crank, 170mm length BB: Radio, BSA square taper, sealed PEDALS: Radio, Xenon Slim, alloy SEAT: Radio, Xenon, pivotal, no padding GEARING: 42/16 WEIGHT: 9.90kg/ 19.86lbs ###section### Product Highlights Expert XL Size, Designed for those tall young riders not quite ready for a Pro Size bike . Approx 5ft 2" - 5ft 6" (155cm - 170cm) A BMX race specific bike perfect for racers who want to take it to the next level Ultra light hydroformed tubing Disc brake mount ready Integrated Chain Tensioners ###shogun-image-section###