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Richard and I will take part in a Classic track day on Friday 27th Sept at Cadwell. This should help to build confidence and wear off the mould release agent off new tyres. We will take part in the BHR (VMCC Races) on Saturday 28th and Sunday 29th.
I have arranged that Bill Swallow will ride my bike on Sunday 29th as it will be nice to see what a good rider can do with the bike. Richard and I participated at the Morini club and the Beezumph at Cadwell a few weeks ago and enjoyed the outing very much. Richard’s bike, based on a 1930 Flying Squirrel Tourer chassis is now running nicely on alcohol and seems to be equal or better than mine, but then, the engine is almost identical and has the same exhaust system. The alcohol gives a better spread of power which largely compensates for Richard having a 3 speed box against my 4 speed unit.
the meeting at 3 Sisters was a trial, as it is now quite bumpy and on a rigid bike this means you have to be taking your weight on your legs for most of the time, or the bike spends most of it’s time bouncing in the air. I am no longer strong enough to do this and when in the air, the rear wheel spins and when it lands, it tears big lumps out of the tyre. I had to cut these off with a sharp knife between each race. Luckily, Cadwell is much smoother and so you can mostly ride seated.
Unfortunately, I am told that we can expect heavy rain, which rather spoils the fun. I need to fit new tyres and bush the rear hub as the drive side bearing has been rotating in it’s housing. Change the primary chain, just for safety as this IWIS item has been on for two years and given the price of the entries nowadays, it is better to be safe than wait till something breaks. I still get accused of having Yamaha parts in the engine, but any observant person could see that there is no room to put side transfers in the barrel without it is very evident, so no, it is a genuine Day Cycle humped piston as Alfred designed. Just a few engineering refinements and made accurately. It is always a pleasure to show the doubters what a Scott is capable of and I hope that Bill Swallow will do just that!. I will just have to accept that in doing so, that he will demonstrate the rather big difference in our riding abilities, but that reminds me of an experience. A few years back, I was invited by the club to bring my bike and some spare parts to a Stafford show. The bike and new engine components were of interest to show visitors and I was lucky to be given an award for the machine of greatest technical interest. The award was to be presented by ex world champion racer Kork Ballington and I duly went up to be presented. I felt the need to say something, so I said “I wish I could race like you”, to which he replied “I wish I could do engineering like you, if I could, I would still be doing it!” A reminder of the short span of success in the life of many sportsmen and made me thank my lucky stars that engineers do not suffer quite such a decline. Pardon me, I talk / write too much and drift into philosophy, but I never claimed to be perfect! Kindest Regards to all. Roger PS. I am converting my Silk Scott into a track racer with an identical engine and exhaust to get a second track ride. Should be fun with suspension!
Excellent. I may redouble my efforts to come and spectate on the Friday. One of my mates, Ritchie Lambourne is racing a Manx 350 at the weekend and is taking his RG500 on the Friday so has been trying to drum up some interest from the rest of us. I don’t have the time or cash to prep my RG for a track session (needs new tyres) and I’m still nervous about thrashing the Scott until I can stop it boiling over (plus the tyres must be 20 years old). However, spectating would be interesting and it would be good to meet you both and see a Scott tracked in anger. …….
Hi Keith The Friday Classic track day should be good fun as there is no pressure and we can just have a good thrash round.
There are some new tyres that suit the Scott and Richard solved his overheating problems by using dope, but then he only has a tiny speedway radiator. You will be very welcome to join in the fun. Do remember that BHR do parade sessions for those who want to ride the track without getting too serious.
Anyone interested contact Gerry Daine Cheers Roger
I do love track days (and Cadwell) so the Scott is certainly going to get a thrash next year. At the last meet Brian pointed out that I have a slightly smaller radiator than normal so I suspect cooling is borderline unless all the waterways etc are spotless. I’m also running slightly lean so thats probably not helping. Thats on the list of winter jobs along with changing the rock hard tyres. What would you recommend? Given the weak front brake I’d like as much grip as possible 😀
Hi Keith Some Scotts are quite sensitive to tyre sizes. The late Chris Williams, who rode the late Clive Waye’s Scott told me that the handling was good if they used a 3.25″ rear tyre. However, on one occasion, their tyre was very worn and they could not get a 3.25″ rear tyre with an acceptable rounded profile, so they fitted a 3.5″ x 19 Avon GP) tyre instead. The handling deteriorated badly and was only restored when they fitted another 3.25″ tyre. I can vouch for the handling of that bike, as I raced it at Cadwell and it was so much better than mine, that it was like riding in a dream. Recently I have been using a modern Avon front tyre on the back with direction reversed. This is a 90 x 90 x 19″ Roadrider AM26, which I use in an intermediate race compound, but a normal road compound tyre would be fine in the Scott for road use. This tyre has a rounded profile and is an equivalent size to an old 3.25″ tyre but with a much better profile. This improved the handling of my bike considerably. The latest advance is that Avon have made this same tyre in 90 x 90 x 21″ form for a front tyre to replace the old Speedmaster. I always found that a bike handles best with similar profiles front and rear so I am looking forward to testing this at Cadwell. To be fair, I have never had a front end breakaway with a Speedmaster with race compound, but they were designed for the days when road surfaces were much inferior to today, so it was not expected that bikes would corner at any great inclination. This means that we soon wear a big bald patch on the sides, which is OK if it is dry, but if we get rain, then it is like cornering on slicks! This causes me considerable apprehension. On previous experience, this tyre combination should be the best yet. I will let you know how I get on, but from the feedback of others using this new 21″ tyre, I expect a significant improvement.
So that would be my advice as being the best tyre choice for a vintage type Scott with 19″ WM2 rear rim and 21″ WM 1 or 2 at the front. Of course if you are running a 19″ front, then use the same 90 x 90 x 19 AM26 both ends. Roger
Thats brilliant, thanks! I’m completely in the dark re tyres for British bikes so thats really helpful. Mine will mostly get ridden on the road but will get the odd track session. I now have something specific to put on the Christmas list 😀
Thanks again, Keith