Sticks Like $%*? To a Blanket! Self-adhesive computer mount using 3M VHB tape (very high bond) designed to fit onto your top tube behind your stem for maximum protection and less distraction. FIT OPTIONS Type A for flat or slightly curved top tubes Maximum curve of up to 3mm drop 12mm from the centre line. Most carbon and aluminium bikes require type A. The base of Type A's has a flat centre with curved 'wings' that flex to the top tube profile, including going all the way to flat. Some customers have been surprised that the Type A has a pronounced curve to the base, be assured that it will flex to flat.. Type B for round and heavily curved top tubes. Works on round tubes of 34mm, smaller diameters will require the mount being clamped in place overnight in order to ensure a good bond. Supplied with alcohol wipe to clean the area to be attached to. Manufactured in-house in nylon using Multi Jet Fusion additive manufacturing and shot peened for surface toughness and quality.