Rear tire for rain

[BLUEKNIGHT911]

LOWER TIRE - PSI FOR SPYDERS

Several forum members have said to run the pressure in the rear tires at 18 - 20 PSI. The book calls for 26. I run General Altimax 43 T 215/60 R 15 on the rear at 26 PSI. So, I'm wondering what the performance and tire mileage longevity is at the lower pressure.

I run 19 - 20 front on Continental Contipro Contact 175/55 R 15. They have a special highway glue which exudes a sticky substance that hangs on tight in the curves. Well.. you'd think so. I have 28K miles on all three tires.

However, next change gets narrower tires. Those 175's almost overfill the wheel well. A tire dealership installed the front and Can Am dealer installed the rear, no issue but lightened my wallet by $200 or so.. After my trip to Valcourt, I'm looking to replace the rear with Pirelli P4 or whatever the suggestion above was. There may be something to say for 20- PSI in the rear. I parked my Spyder facing into the garage as opposed to always backing in (for a quick get away) and noted in the bright sunlight that the wear on the tire was more than I had expected. Time to change soon.

On that overly long Canada ride, the tires performed well. As those who went know, it was rainy rainy rainy, for me 13 of 16 days in the rain.

So, a definitive answer. 26 or 20 in the rear tire.

Myself and Peter Aawen are the strongest advocates for the lower tire pressure on Spyders .... THAT USE CAR TIRES .... Both of us have had training and schooling concerning tires - what they do & why etc ..... First what book recommends 26 psi ...and on what tire ???? .... The Altimax ( which I have recommended for a couple of years ) is going to perform at it's best at 18-19 psi.... The front tires ( any brand car type ) will work best at 14-15 psi ..... I could tell you Exactly why this is so , but it would easily be 5,000 words :yikes:...... I have one of the last Michelin Hydro -edge tires ( now on my RT ) it is possibly just a hair better than the Altimax and run it at 18 psi , I have 27,000+ mi. on it & I think 5,000+ more is very likely ..... I think the Altimax would give similar performance .... You mention the Pirelli P4 ... ( there are a few models ) I plan for this to be my next tire ..... The version I'm getting is the " Four Seasons PLUS " model ....this is the better of all the P4's ...... I think I covered it all ......Mike :thumbup: