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Honda GB 500TT Clubman Tourist Trophy

 

   

 

Make Model

Honda GB 500TT Clubman Tourist Trophy

Year

1989-91

Engine

Air cooled, single cylinder, four stroke. SOHC, 4 valve per cylinder

Capacity

498
Bore x Stroke 92 x 75mm
Compression Ratio 8.9:1

Induction

Keihin PH 69

Ignition  /  Starting

CDI  /  electric
Clutch Wet multi-plate coil spring

Max Power

33.3 hp @ 7000 (on dyno)

Max Torque

26.3 ft-lb  @ 6000 (on dyno)

Transmission  /  Drive

5 Speed  /  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)
Frame  

Front Suspension

 

Rear Suspension

 

Front Brakes

Single 256mm disc

Rear Brakes

138mm Drum

Front Tyre

90/90 -18

Rear Tyre

2.50 -18
Seat Height 880 mm

Wet-Weight

390 lb

Fuel Capacity

 

By 1989 the British twin cylinder motorcycles were replaced by British triples and primarily by the Japanese bikes. Each year the Tourist Trophy race was held on the Isle of Man and Honda was determined to bring back the flavor of those British twins with a bike that had look of the Norton and Triumph racing bikes. Honda responded by launching its GB500 (commonly known as the tourist trophy) as a retro-bike with styling and components that recalled fond memories for many motorcyclists of the classic British cycles. The GB500 was a clever package, designed to appeal to a new market that no current motorcycle maker had tapped: the classic, collectible cycles and the older enthusiast. The GB is a sleeved down XL600 engine displacing 498cc..

The GB is a sleeved down XL600 engine displacing 498cc.. This means that it has the same stroke as the XL600 i.e 75mm. Its also running 8.9:1 compression so kickstarts are easy. The engine has a gear driven balance shaft that is positioned at the front of the engine. This certainly helps keep it tame all the way to its 7800 red line. The single overhead cam is driven by chain that is on the right hand side of the engine. The Honda RFVC (Radial Four Valve Cam?) valve gear is accessed through the four separate covers.

 

 

 

NOTE: Any correction or more information on these motorcycles will kindly be appreciated, Some country's motorcycle specifications can be different to motorcyclespecs.co.za. Confirm with your motorcycle dealer before ordering any parts or spares. Any objections to articles or photos placed on motorcyclespecs.co.za will be removed upon request.  

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