Honda NT650 Bros (1990-93)

The Honda NT650 Bros MKII was produced from 1990-93 and had a liquid cooled, four stroke, 647cc V-twin engine with a compression ratio of 9.2:1. It had two 36mm carburetors and a digital transistorized ignition. The bike had a maximum power output of 56.1 hp and maximum torque of 56.9 Nm at 7897 and 6053 rpm respectively. The transmission was a 5-speed wet plate clutch with final drive by chain, and the bike had a front suspension of 41mm telescopic forks and a rear suspension of Pro-arm single shock with preload and rebound damping adjustment. The front brakes were single 316mm discs with two piston calipers, and the rear brake was a single 276mm disc with a single piston caliper. The bike had a rake of 27 degrees, trail of 112mm/4.4in, and a wheelbase of 1430mm/56.3in. Its dry weight was 165kg/363.7lbs and its wet weight was 184.2kg/406lbs. It had a fuel capacity of 12 litres/3.2 US gal, and an average consumption of 46.6 mpg. The standing 1/4 mile time was 13.6s at a speed of 93mph, and its top speed was 107 mph.

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Technical specifications:

Make Model: Honda NT 650 Bros MKII

Year: 1990-93

Engine: Four stroke, 52 degreesV-Twin cylinder, SOHC, 3 valve per cylinder

Capacity: 647 cc / 39.4 cu-in

Bore x Stroke: 79 x 66 mm

Cooling System: Liquid cooled

Compression Ratio: 9.2:1

Induction: 2x36mm equal pressure flat slide carburetors

Ignition: Digital transistorized

Starting: Electric

Max Power: 56.1 hp / 40.9 kW @ 7897 rpm

Max Torque: 56.9 Nm / 43 lb-ft @ 6053 rpm

Clutch: Wet Plate

Transmission: 5 Speed

Final Drive: Chain

Front Suspension: 41mm Telescopic forks

Rear Suspension: Pro-arm single shock, preload and rebound damping adjustment.

Front Brakes: Single 316mm discs 2 piston calipers

Rear Brakes: Single 276mm disc 1 piston caliper

Front Tyre: 110/80-17

Rear Tyre: 150/70-17

Rake: 27 degrees

Trail: 112 mm / 4.4 in

Wheelbase: 1430 mm / 56.3 in.

Seat Height: 773 mm / 30.6 in

Dry Weight: 165 kg / 363.7 lbs

Wet Weight: 184.2 kg / 406 lbs

Fuel Capacity: 12 Litres / 3.2 US gal

Consumption Average: 46.6 mpg

Standing 1/4 Mile: 13.6 sec / 93 mph

Top Speed: 107 mph