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Honda GB 400TT Clubman Tourist Trophy

Make Model	Honda GB 400TT Clubman Tourist Trophy
Year	1988 -
Engine	Four stroke, single cylinder, SOHC, 4 valve
Capacity	390 cc / 23.7 cu-in
Bore x Stroke	84 x 72 mm
Cooling System	Air cooled
Compression Ratio	9.2:1
Induction	Keihin PH 69
Ignition	CDI
Starting	Electric
Max Power	34 hp / 25.3 kW @ 7500 rpm
Max Torque	3.4 kgf-m @ 6000rpm
Clutch	Wet multi-plate coil spring
Transmission	5 Speed
Final Drive	Chain
Gear Ratio	1st 2.384 (31/13) / 2nd 1.555 (28/18) / 3rd 1.200 (24/20) / 4th 1.000 (23/23) / 5th 875 (21/24)
Front Suspension	35 mm telescopic forks
Rear Suspension	Dual shocks with adjustable pre-load
Front Brakes	Single 256mm disc
Rear Brakes	138mm Drum
Front Tyre	90/90 -18
Rear Tyre	110/90 -18
Rake	64°
Trail	105 mm / 4.1 in
Seat Height	880 mm / 34.6 in
Dry Weight	157 kg / 346 lbs
Fuel Capacity	20 Litres / 5.3 US gal

All GB500/400's featured black-green paint with gold pin-striping and lettering, as well as chrome wire wheels, clip-on handlebars, steel-braided oil lines, steel side covers (i.e., not plastic), round gauges with matte silver faces, fork gaiters, non-adjustable fork with hydraulic damping, 18-inch wheels with tube-type tires, solo seat with painted rear cowling and a fuel tank indented with knee grips.^[3]

The GB500/400's engine was based on the Honda XL600 engine, a dry-sump four-stroke dirt bike. The four-valve single cylinder engine featured a radial four-valve combustion chamber, along with a tubular frame, wire wheels, clip-on handlebars, solo seat, seat hump, and pin-striped gas tank. The styling resembled TT single-cylinder racing bikes (such as the Manx Norton, the BSA Gold Star and the AJS 7R) that were prominent in the TT until the 1960s.

In the USA, GB500s were imported for model years 1989 and 1990. In 1992, a third-party exported 1,000 unsold Honda GB 500 Clubmans (German) from the USA to Germany as grey import vehicles.^[4]^[5]^[6]

Both the 400 cc and 500 cc versions were imported and sold by Honda New Zealand. When originally released in NZ, the GB came in three models: dual seat; Mk2 with half-fairing, single seat with cowling; and no fairing, single seat.