The Classic Motorcycle Racing Club will bring the motorsport season to a close at Croft Circuit this weekend (October 2/3) and whilst there is set to be plenty of action on-track, a Classic Bike Show is set to garner plenty of attention.
Here are just a few of the machines that will be on display:
Buell XBRR - Jeremy McWilliams rode this machine at the 2006 Daytona 200. It is #2 out of 56 made. The engine is based on the Harley-Davidson Sportster, using a shorter 79.4mm stroke with a huge 103.6mm bore for the 1,339cc displacement, which is just under the 1,350cc limit for the FX race rules. The engine breathes through enormous dual-downdraft 62mm throttle bodies, which are the largest of any production motorcycle. The engine’s 150 crankshaft horsepower and 100 lb-ft of torque at 6,400 RPM were on par with factory racing Ducati 999R.
Pulse 500 Grand Prix Bike - The Pulse on display this weekend was raced by Jason Vincent in the 2001 500cc World Championship alongside his team-mate Mark Willis.
It represents the last evolution of the 500 cc two-stroke racers that gave way to the Moto GP machines in 2002.
The Pulse 500 family tree
The ELF Swissauto project was first shown in late 1995. The 108º V4 2-stroke featured a three-bearing crankshaft and produced 180/185hp in original form and 192hp at 12,500rpm by 1997.
The motor weighed in at 37kg with the dual radiator cooling system using a belt-driven water pump. Both ‘screamer’ and ‘big bang’ layouts were used, with a balance shaft being employed in both versions by the end of ’96.
ELF finished their sponsorship at the end of ’97 with the bike then being known as the MuZ for ’98 and then the Muz Weber in ’99. While the Muz team didn’t compete past 1999, the bikes themselves were raced again under the Pulse banner in 2001.
Ex Gene Romero 1974 Yamaha TZ700A – The bike that won the Daytona 200 race in 1975 having finished 6th the year before. Yamaha introduced the TZ750 in 1974 to compete in the Formula 750 Series, a Championship set up by the AMA in the USA and the ACU in the UK. The inaugural Championship in 1971 was won by Barry Sheene on a Suzuki, but after that the series was dominated by Yamaha until 1977 when it lost its World Championship status.
Matchless G45 – The Matchless G45 was developed in 1951 as a Grand Prix racer using an AJS 7R rolling chassis fitted with a modified Matchless G9 roadster engine with a new aluminium-alloy cylinder barrel and high-flow cylinder head. Only 80 were manufactured during its six-year production run and barely half that are thought to still exist today. Another feature of the G45 here this weekend is the distinctive bark from its megaphone exhaust accompanied by an equally distinctive gurgle on the overrun. There will not be anything else like it in the display.
Honda RVF750R RC45: Several of the two hundred RC45’s manufactured in 1994 are on display this weekend as part of the Revit Red Team. John Kocinski won the 1997 WSB Championship on the RC45 and the bike also gave Miguel Duhamel and Ben Bostrom AMA Superbike titles in the USA. Principal sponsor of the RC45 was Castrol and by 1999 the bike was producing around 190bhp.