Fishy Dave Posted April 6, 2009 Share Posted April 6, 2009 Hello, I have my first ever race this Bank holiday Monday at Castle Combe. The weather forecast is looking like rain may be a possibility, so need to choose which set of tyres to put on my spare rims. I have a set of almost new Yokohama A539s and a set of half worn CR500s. I know it's hard to answer, but what are your thoughts about which set to use for wet weather racing? I was thinking that the A539s would be better in a downpour with their deeper tread blocks, whilst the CR500s may be better in 'normal' wet weather due to a softer rubber and less block movement? David Smitheram, Wiltshire (South) AR, 07718 368173. 1400 supersport ex racer Link to comment Share on other sites More sharing options...
Roger Ford Posted April 6, 2009 Share Posted April 6, 2009 I think that makes sense. What's on your "main" rims? What do the class regs say? Is it completely open (including slicks) or does it just specify treaded tyres? Link to comment Share on other sites More sharing options...
Fishy Dave Posted April 6, 2009 Author Share Posted April 6, 2009 Tyres are open, so I have Michelin slicks on my main rims, I just need to decide which treaded tyre to use as my wets. David Smitheram, Wiltshire (South) AR, 07718 368173. 1400 supersport ex racer Link to comment Share on other sites More sharing options...
jchasey Posted April 6, 2009 Share Posted April 6, 2009 Hi Dave, I'll be in the same race in the C class... It's a very friendly bunch of guys, although the Tigers tend to keep to themselves a bit since they don't race with us every time. Michelin slicks for me too if its dry, will be on CR500s (my normal road tyres) if it's drizzly...I bought some second hand Avon wets too over winter, but have never used them to date, hopefully won't need to at the weekend. I'll look out for you in the paddock - biggest learning curve for the first race last season for me was the rolling start, there is quite a bit of 'interpretation' of the rules going on. There was even a race last season where a Mini managed to do a 180 degree spin while we were on the formation lap before we had crossed the start line. The stewards were not happy John Edited by - jchasey on 6 Apr 2009 18:14:02 Link to comment Share on other sites More sharing options...
Graeme Smith Posted April 6, 2009 Share Posted April 6, 2009 We had this at Silverstone Stowe a few years ago - very worn CR500s are much better than brand new list 1A tyres in even torrential conditions. Link to comment Share on other sites More sharing options...
Fishy Dave Posted April 7, 2009 Author Share Posted April 7, 2009 Thanks guys, CR500s it is then Good to hear from you John, yes, any advice very gratefuly received. I'm very nervous about it all (excited too). David Smitheram, Wiltshire (South) AR, 07718 368173. 1400 supersport ex racer Link to comment Share on other sites More sharing options...
Graeme Smith Posted April 7, 2009 Share Posted April 7, 2009 If it is wet, and you're on CR500s, make sure you get some heat into them on the green flag lap - drive it sideways Link to comment Share on other sites More sharing options...
caterhamnut Posted April 7, 2009 Share Posted April 7, 2009 I have no race experience obviously, but have found exactly what Graeme mentions -I would always prefer '48's/888's in the wet compared to the harder tyres - you accept that for the 1% of surface that has standing water you need to be careful, but the rest of the time the other tyres offer far more grip. Good luck in your first race Dave!! (any news on tank ) www.mycaterham.com here Videos here 102,000 miles car Link to comment Share on other sites More sharing options...
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