frame: 26-inch mountain bike frame, aluminium alloy mountain bike frame, height 17''. Disc Brake Frame: Quick-release 135mm, frame net weight 1.75kg. Specifications: Compatible with 27.2mm seatpost + 44mm head tube + BB68 bottom bracket. Head tube length 110mm, head tube to bottom bracket distance 560mm, quick-release spacing 135mm. Aluminium alloy frame: Crafted from lightweight aluminium alloy for an enhanced riding experience. Packaging: Includes frame + seatpost clamp. For product or service enquiries, please contact us at any time; we shall respond within 24 hours.