My reference to replicas is a bit misleading. What I meant was a replica of a bike that, although it appeared as a one off or works machine in the period, does not meet our rules for that period. This would not include things like ‘new’ Manx Nortons or G50s as they meet all our rules for period 1, although Dave Roper did say to me that he would not enter the reproduction Manx in the pre-65 class as he felt it does not meet the spirit of this class. Things like replica Drixton or Harris frames also are OK as they fall within the period rules for frame construction and were made in the period.
As for the chairs, even Rudi’s first Cat with tubular frame and leading link forks was fitted with Mini wheels and was incredibly low (the handlebars were 12” from the road!). Sidecar constructors have always been very innovative, from the Owen Greenwood Mini based machine in the mid-60s to the later 3 wheeled racing cars with powered sidecar wheels, hub centre steering and formula car type suspension all around, all running on yard wide ex-F1 slicks. This progress culminated in an abortive move by the FIM in the late 70s to bring these machines back to something resembling the concept of a motorcycle and sidecar. There was widespread complaining from the competitors so the FIM came up with 2 different classes of sidecar for the Grands Prix (B2A & B2B). This was also unpopular and the sidecar class disappeared from international racing not long after.
As for Steve B’s comment about run what yer brung! What are you thinking Steve?
The whole concept of vintage racing is to replicate, as far as possible, racing as it was in each of the periods. By allowing out of period parts or machines it just raises the anti for everyone else. Yes, we all go out there to win but what does it prove if you have later technology parts or machine. Like Steve Hoffarth writes in last month’s IM, vintage racing has many advantages over modern racing, one being that vintage bikes do not become obsolete as they are already obsolete! If unlimited mods are allowed then we just join the treadmill that is modern racing where the bike has to be constantly updated to even stay in the same place. I think that, for all the reasons Steve points out in his column, is why we continue to attract very large entries while modern racing is dying.
My thoughts, anyway.
Stan