22nd Oct, 2010 14:15

Haynes International Motor Museum

 
Lot 27
 

1983 Suzuki RG500 MK8

Sold for £16,875

(including buyers premium)


Lot details
Registration No: N/A
Frame No: Not Visible
Engine No: Not Visible
MOT Expiry Date: N/A

Suzuki introduced the first of the RG500 series production racers for the 1976 season. The new machine shared the square four configuration of its works XR counterpart, although the bore and stroke dimensions remained at 56mm x 50.5mm, the XR works bikes changing to square 54mm x 54mm dimensions for the 1976 season. The Mk I was equipped with a steel frame with laid down shock absorbers, 35mm forks and open expansion chambers. The Mk II and Mk III variants introduced silenced expansion chambers and revised bodywork; however, it was the introduction of the Mk IV in 1979 that introduced a significant change. The engine dimensions became the same as the XR series with a bore and stroke of 54mm x 54mm, the fork stanchion diameter increased to 37mm and magnesium wheels supplied by Campagnola replaced the spoked items previously fitted. The Mk V and VI again represented a period of evolution, rather than revolution for the development of the RG with changes occurring to the expansion chambers, a braced swinging arm being introduced with the Mk V and anti dive being added to the front forks on the MKVI.
For 1982 a significantly revised version of the RG500 was introduced. A new engine featuring "stepped cylinders "was introduced. The crankcases were cast in magnesium and contained two crankshafts instead of the four found in the earlier versions. Breathing was improved with larger carburettors and revised expansion chambers. A new frame, retaining the tubular steel construction was employed but the rear suspension changed fro the traditional twin shock arrangement to a monoshock system with an alloy swinging arm and new 40mm forks were fitted at the front end. Offering approximately 115 bhp the Mk VII was followed in 1983 by the similar Mk VIII.
The MK VIII offered is, according to the vendor, one of those supplied to the Team Roberto Gallina for the 1983 season when they ran former World Champion Franco Uncini with "Pepsi" sponsorship. It appears to be original in most major respects although it is fitted with Brembo front brakes and had a replacement fairing in 1996; the bike has been on display for the last fifteen years and will therefore need recommissioning before returning to the track.
 

Auction: Haynes International Motor Museum, 22nd Oct, 2010

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