BMW C1 Models and options Two models were available. The '125' model featured a 124 cc capacity four valve, four-stroke, water-cooled, fuel injected engine producing 15 bhp. The '200' model sported a 176 cc engine producing 18 bhp. Both engines were manufactured by Rotax. The 176 cc engine can suffer from burnt valves if not serviced correctly. Accessory options could be added at point of sale or sometimes retrofitted such as: * ABS (anti-lock) brakes, * 'Fun Audio System' (music system, volume linked to speed) * Interior reading light * BMW Immobilizer alarm system * Lockable glove box with power socket * Sun roof (as opposed to the standard 'hard top') * Heated grips and/or seat Three different options were available for the space behind the rider, all of them with matching key/lock and could be swapped out quickly: * A large PDB (top box) * Luggage Rack * Pillion seat BMW build quality is particularly noticeable in the pillion seat after market kit. It provides not only the seat itself, but warning/safety stickers, foot pegs and a kit for adjusting the headlights tilt angle as the attitude of the bike changes with different payloads. A windscreen wiper with washer fluid completes the 'two wheeled car feel' and together with the roof/passenger cell creates a bike which has a higher centre of gravity than just about any other. In addition the rider is held upright against the seat's backrest by a four-point seat-belt. This makes handling at slow speed, and in particular taking corners in tight spaces or manoeuvring the bike at walking pace difficult until experience is acquired. The C1 weighed approximately 185 kg (408 lb) with a 40/60 weight distribution towards the back.