Grinnallcars trike...OK

Lien: http://www.grinnallcars.com/

Chassis
Computer optimised steel tube spaceframe. Blasted surface protected by zinc primer and polyester powder coating by Redditch Shotblasting. TUV approved.

Body
Glassfibre reinforced polyester, manufactured by hand, 2-pack paint finish. Virtually unlimited colour choice.

Engine
New or used BMW K-Series, all models: 1200cc 16 valve 130bhp+; 1100cc 16 valve 100bhp+; 1000cc 16 valve 98bhp+; 1000cc 8 valve 90bhp.
Motronic digital engine management.

Transmission
The K Series offers several gearbox options which can be embodied into the Scorpion III. Since the launch of the K1200, a six-speed box has been available - as has a five-speed box with BMW's electric 'Back Up System'. These gearboxes can only be specified with a 1200 type chassis.

The pre-1200 five-speed box is also available, but carries the rear suspension on the back of its casing. The later gearboxes require the rear suspension to be chassis mounted, so pre and post 1200 gearboxes are not interchangeable. The later system offers more rigidity, but the earlier type performs perfectly well.

Transmission
Note: We offer a larger wheel and tyre on the 1200 type chassis: 7.5in x 16in with 205-50-16 tyre.

The choices of gearbox are: 6-speed (using 1200 type chassis only) 5-speed (using 1200 type chassis only) or 5-speed pre-1200.

Clutch
BMW bikes use a single dry plate, car-like clutch. We offer an up-rated all metal unit that gives very long life. This was initially developed because the standard BMW clutch in a Scorpion was prone to early failure. This is no longer true of the latest specification standard units - provided that they are not abused. However, the Grinnall all-metal alternative remains a recommended option.

Operation of the clutch is cable on the pre 1200 models, and hydraulic on the post 1200 models.

Suspension
Front suspension: Double wishbones in oval tubing with inboard concentric coil springs and dampers. Anti-roll bar. Optional adjustable dampers.
Rear suspension: BMW Para-lever (early 8-valve models use Mono-lever). Concentric coil spring and adjustable damper standard.

Brakes
Front brakes: Girling single piston sliding calipers with hand brake. Optional AP racing opposed twin-piston alloy callipers with Brembo mechanical rear handbrake.
Rear brake: BMW K-series 290mm disc, twin opposed piston non-floating calliper.

Steering
Aluminium race type, centre pinion 2.5 turns lock to lock. Right or left-hand drive. Collapsible safety steering column.

Wheels and Tyres
Front: Cast aluminium 7x15 with 195/50 ZR15 tyres.
Rear: Aluminium 3 piece split rim 7.5x15 with 195/55 ZR15 tyre (pre 1200 model) or 7.5x16 with 205/50 ZR16 tyre (for 1200cc model only).
Bridgestone tyres are recommended.

Fuel tank
Aircraft quality welded aluminium fabrication with weir system. 28-litre capacity. Low and high pressure fuel pumps to prevent fuel starvation during high-speed cornering.

Interior
Two orthopaedically designed seats abreast. Aircraft grade, fire resistant upholstery. Alcantara material also available. Adjustable pedals and foot rest, LUKE four point safety belts, twin T45 alloy steel roll over bars, BMW electronic rev-counter and speedometer, gauges for water temperature and fuel level. Optional MOMO Leather rim steering wheel with collapsible boss. Optional MOMO gear knob. Stainless steel Starter Button. Cockpit weather cover.

Dimensions
Dry weight: 395kg. average
Maximum total weight: 600kg. including passenger and luggage.
Length overall: 353cm. (1200/6: 363cm).
Wheelbase: 270cm. (1200/6: 287cm).
Maximum overall width: 176cm.
Performance: 0-60 mph approx. 5 seconds (K1100).
Maximum speed: approx. 130mph (K1100).
Economy: fuel consumption 35-50mpg.