BMW C1 - Wikipedia

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From left to right: C1 200 "Executive", C1 200 "Family's Friend", C1 125 base, C1 125 "Executive"

The C1 was originally available from May 2000 with a 125 model designation; in 2001, a 200 model was added. The "125" has a 125 cc capacity four valve, four-stroke, water-cooled, fuel injected engine producing 15 brake horsepower (11 kW) at 9250 RPM;[1] the "200" has a larger 176 cubic centimetres (10.7 cu in) engine producing 18 brake horsepower (13 kW) at 9000 RPM.[2] Torque output is similarly improved, from 12 to 17 N⋅m (8.9 to 12.5 lbf⋅ft) for the 125 and 200, respectively.[4] Both engines were manufactured by Rotax and include a CVT gearbox. Both models of the C1 weighed approximately 185 kilograms (408 lb) with a 40/60 front/rear weight distribution.

The C1 is arguably underpowered: an MCN review of the 125 model said, "The BMW C1's 125cc engine is an unremarkable four-stroke single producing a respectable 15bhp. But it’s a heavy motorcycle at 185kg – all the 1000cc sports bikes weigh less".[7]

The tires are 120/70R13 in front and 140/70R12 in the rear; both the front and rear brakes are single-disc, each 220 mm (8.7 in) in diameter.[1][2] The C1's aluminum space frame was suspended using a Telelever fork with a single, central spring strut and swing-arm rear unit carrying the engine and transmission, using two spring struts.[1][2]

The space behind the rider and outside the "cage" has one of three interchangeable uses: a large, lockable external storage box; a luggage rack; or a pillion seat. There were four trim lines: Base, Family's Friend, Executive, and Williams.

BMW C1 Variations

Trim	Image	Model[a]		Notes
Trim	Image	125	200	Notes
Base
Family's Friend				Includes base model features, adds extra luggage attachment kit and storage compartment in the front fairing
Executive				Family's Friend model features plus reading light and mobile phone holder
Williams				Executive model features plus special paint