Yamaha RD500LC (1985)

The Yamaha RD 500LC Christian Sarron Replica was released in 1985 and featured a two-stroke, 50 degree-V4 cylinder engine with a capacity of 499cc. It had a liquid cooling system, 4x 26mm Mikuni carburetors, and a digital CDI ignition. The maximum power output was 88hp at 9500rpm and the maximum torque was 6.57Nm at 8500rpm. The motorcycle had a wet, multiple discs and cable operated clutch, a 6-speed transmission, and a final drive chain with gear ratios of 1st: 2.250, 2nd: 1.685, 3rd: 1.363, 4th: 1.166, 5th: 1.043, and 6th: 0.960. It had a steel twin downtube frame and air-assisted telescopic forks with 4-way spring preload adjustable and anti-dive variable in the front, and a monoshock with spring preload and rebound damping in the rear. The front brakes were 2x 267mm discs with 2 piston calipers and the rear brakes were a single 245mm disc with 2 piston caliper. The front and rear tires were 120/80 V16 and 130/80 V18 respectively. The motorcycle weighed 180kg dry and 198.6kg wet with a fuel capacity of 22 litres. The average fuel consumption was 27.5mpg and it had a standing quarter-mile time of 11.7 seconds at a top speed of 148mph.

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Technical specifications:

Make Model: Yamaha RD 500LC Christian Sarron Replica

Year: 1985

Engine: Two stroke, 50 degrees-V4 cylinder, reed valve.

Capacity: 499 cc / 30.3 cu-in

Bore x Stroke: 56.4 x 50 mm

Cooling System: Liquid cooled

Compression Ratio: 6.6:1

Induction: 4x 26mm Mikuni carburetors

Ignition: Digital CDI

Spark Plug: NGK, BR9HS

Starting: Kick

Max Power: 88 hp / 63.9 kW @ 9500 rpm

Max Torque: 6.57 Nm / 6.9 kgf-m @ 8500 rpm

Clutch: Wet, multiple discs, cable operated

Transmission: 6 Speed

Final Drive: Chain

Gear Ratio: 1st 2.250 2nd 1.685 3rd 1.363 4th 1.166 5th 1.043 6th 0.960

Frame: Steel twin downtube

Front Suspension: 37mm Air assisted telescopic forks, 4-way spring preload adjustable and anti-dive variable.

Front Wheel Travel: 140 mm / 5.5 in

Rear Suspension: Monoshock, spring preload and rebound damping,

Rear Wheel Travel: 120 mm / 4.7 in

Front Brakes: 2x 267mm discs 2 piston calipers

Rear Brakes: Single 245mm disc 2 piston calliper

Front Tyre: 120/80 V16 +

Rear Tyre: 130/80 V18

Dimensions: Length 2085 mm / 82.1 in Width 705 mm /27.7 in Height 1145 mm /45.0 in

Wheelbase: 1375 mm / 54.1 in

Seat Height: 780 mm / 30.7 in

Dry Weight: 180 kg / 437.8 lbs

Wet Weight: 198.6 kg / 436.5 lbs

Fuel Capacity: 22 Litres / 5.8 gal

Consumption Average: 27.5 mpg

Standing 1/4 Mile: 11.7 sec / 117.7 mph

Top Speed: 148 mph / 238 km/h