dogvet Posted July 12, 2000 Share Posted July 12, 2000 How much difference in feel/performance is there between 13"/60series and 13"70 series, obviously it will drop the car a little? Thanks in advance. Link to comment Share on other sites More sharing options...
Marius Posted July 12, 2000 Share Posted July 12, 2000 I phoned the german avon-service once more and, yes, he has the CR500 on stock. They´re available in 13" and 15", Dieter Knüttel, the boss of Avon-Germany has some sets to spare which have been slightly used, much cheaper. Front tire 13" would be (new) 290 DM, which is something like 88 pounds each. Call the Knuettel-crew in germany on 0049-6253-85556. Link to comment Share on other sites More sharing options...
Andrew Russell Posted July 12, 2000 Share Posted July 12, 2000 There is about an inch difference in diameter between the 185/60x13 and the 185/70x13 A021R tyre. The info I have is that the 70 profile is very slightly wider at 7.6inches as against 7.3 inches for the 60 profile. How that all translates in feel and grip, quite frankly, I haven't a clue. Probably in a car as light as a Seven the increase in sidewall 'give' will be minimal and if you went for the 70 profile you would have the benefit of 1/2inch extra ground clearance. I'm stuck with 60 profile because I only need to replace two tyres at this time.... Andrew. Link to comment Share on other sites More sharing options...
Slipper man Posted July 12, 2000 Share Posted July 12, 2000 I think you'll find that Caterham recommend 70 profile anyway. To save the sump, and at 3/4 the price, that's what I'd go for Link to comment Share on other sites More sharing options...
Nick Posted July 12, 2000 Share Posted July 12, 2000 I imagine Caterham recommend whatever comes into their head at the time. They recommended 185 60 to me. I had never considered 70 profile until I read about it recently here, so I may give it a go. Link to comment Share on other sites More sharing options...
Steve W Posted July 14, 2000 Share Posted July 14, 2000 Can anyone help? I've just ordered a set of 13' wheels from the wonderful group order here. 6' front and 7' rear. I have 205/45 16' at the moment and would like to keep to say 185/70 for the extra ground clearance. What would be the best size to fit on the 7' rear? I was thinking of something wider as I have about 200 bhp to put down. Many thanks. Link to comment Share on other sites More sharing options...
Mike Bees Posted July 14, 2000 Share Posted July 14, 2000 Your choices are 185x70/13 or 205x60/13 - you'll lose about half an inch of ground clearance with the 205x60 but get a fair bit of extra rubber on the road. Mike Link to comment Share on other sites More sharing options...
Steve W Posted July 14, 2000 Share Posted July 14, 2000 If I go for 205/60 13' on the back does that mean I should keep with 185/60 on the front (what is normal ground clearance anyway mine seem to be about 2 3/4' unloaded and is fine). I guess it's not a good idea to have 70's on the front and 60's on the rear or is this OK. Sorry to seem a bit dim but this tyre stuff is all a bit new to me. Thanks for the help Link to comment Share on other sites More sharing options...
Dave H Posted July 17, 2000 Share Posted July 17, 2000 it's quite common to put wider tyres on the back than the front, but I wouldn't put higher profiles on the front than the back ( I have done it the other way round and it works OK). You want the front of the car to be lower than the back rather than the other way round. Link to comment Share on other sites More sharing options...
Anna Rexia Posted July 17, 2000 Share Posted July 17, 2000 John E., Well, you asked for ideas - now look what you've done! Link to comment Share on other sites More sharing options...
Andrew Dent Posted July 17, 2000 Share Posted July 17, 2000 Well, you managed 3 pages. Where will it stop. 21s waiting for collection when you are ready. Do you need instructions to find the place? Buttertubs route guide become a little bit long! Andrew Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted July 17, 2000 Leadership Team Share Posted July 17, 2000 Thought you were still sleeping Anna? Link to comment Share on other sites More sharing options...
John E Posted July 18, 2000 Author Share Posted July 18, 2000 SORRY but I got the answer that I needed. You can all wake up now and take notice of the excellent replies. Some good stuff on here. Thanks to all of my contributors!!!!! Andrew, will pick up the tyres on Thursday and if I sort this bloody exhaust thing out then a thrash thro'th dales is called for. Link to comment Share on other sites More sharing options...
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