SEAT POST: 31.6mm. SEAT CLAMP: 34.9mm. FRONT MECH: Braze-on. BB: ‘BB86′.HEADSET: Integrated, 41.8ø upper, 51.8ø lower, for taper head tube. FSA No.42/ACB headset included with frame.Both bearings are ‘ACB’, meaning ‘Angular Contact Bearings’. The head-tube seat angle is 45º.The headset drops into a tapered seat in the head tube and is tensioned using a headset tensioner within the fork steerer. Tensioning the headset centres it on the taper and prevents any play. The larger lower bearing allows a tapered steerer and larger crown. This gives sharper response and helps reduce flex under braking.BB86: Wide, stable and durable, the BB86 standard bottom-bracket is ideal for the Aithein frame and mates perfectly with the wide ‘AntiGravity’ seat tube. Internal bearing cups are pressed into the bottom-bracket shell and standard external BB bearings set inside these cups, this avoids the metal to metal contact of other BB types. Cranks with 24mm spindle work with this system.KINESIUM: Developed by Kinesis International, Kinesium is a superb tubing for use in lightweight, high performance frames. Kinesium is enhanced 6000 series Aluminium alloy, which is 25% stronger than 6061 at the same weight level.SPF: The Aithein uses Kinesis developed ‘SuperPlastic Formed’ tubing technology for it’s unique seat tube. SPF is the modern version of ‘Hydroforming’, it uses far higher temps. to produce complicated shapes in thinner wall tubing than was possible with Hydroforming. The result is lighter weight tubing that can be formed to make the frame perform exactly as we require.FORK: The Aithein uses a specially developed, 330g monocoque carbon, taper 1.5” fork.ULTRA SMOOTH WELD PROFILE: This frame is joined using Kinesis developed smooth weld technology, giving tough, stress-free welds and clean appearance. The welding technique performed without secondary finishing or sanding, so weld bead and tube are left at full strength.ANTIGRAVITY SEAT TUBE: The SPF ‘AntiGravity’ seat-tube gives huge ‘core stability’ to the frame, it means the main tubes are under less torsional strain and means we can lighten them. The wide base and special profile of this advanced tube keeps the BB stable and delivers maximum power output at the wheel.

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