The Air is GTs entry level & most affordable bike in their 2019 range, Its still built with quality parts, Hi-Ten Steel frame, fork & Handlebar rear cassette hub and much more. An ideal first bike for a beginner rider. ###section### Product Specs FRAME MATERIAL: Hi-Ten Steel WHEEL SIZE: 20\" TOP TUBE LENGTH: 20\" CHAIN STAY LENGTH: 13.2\" HEADTUBE ANGLE: SEAT TUBE ANGLE: FORKS: Hi-Ten Steel BARS: 8.375 Hi Ten Steel STEM: GT Forged Topload HEADSET: 1 1/8 Aheadset BRAKE MOUNTS: Welded Mounts BRAKES: U-Brake FRONT HUB: Looseball FRONT RIM: Single Wall Alloy REAR HUB: Looseball Cassette, 9t Sealed Driver REAR RIM: Single Wall Alloy TYRES: Innova 2.3, Front 2.2 Rear SPROCKET: 25t Steel CRANKS: Power Series Chromoly 170mm 3pc BB: USA Looseball PEDALS: GT Low Profile Nylon SEAT: GT Railed GEARING: 25/9 WEIGHT: TBC ###section### Product Highlights Full Size Bike with a Shorter Top Tube and geometry to Suit riders who are 4ft - 5ft 4\" / 120cm -160cm A great all rounder suitable for any type of riding Strong Hi Ten steel frame and bars Rear cassette hub U-brake system on welded mounts ###shogun-image-section###