Staggered! Tyre life
Discussion
Iang84 said:
Just changed to a set of PR4 from PR3 I'm not liking them at the moment as they feel a little soft but that could be because the standard apparently have slightly softer sidewalls than the GT which is on par to PR3 strength I'm going to try a slightly higher pressure in the rear to see if this combats it if not guess I'll have to live with it as they don't do a GT version in a 160 even though my bikes a lardy 230kg wet
black-k1 in other thread said:
PR4s work fine for fast road work on my K1300S, (including some very spirited rides in Spain where temperatures were in the low to mid 30’s C) which is heavier and more powerful than the ‘Blade. Perfect tyres for road work and fine for the track unless you plan on being the fastest on the track.
I did find that the PR4s are far more sensitive to pressures then the PR2s. I used to run my PR2s with a couple of PSI below the “official” 36/42. This gave slightly better grip and feel without any loss of stability. Doing this on the PR4s caused unwelcome movement towards the limit in corners. I contacted Michelin and was advised by the Michelin rep to run them a couple of PSI harder than standard. This solved the movement problem and made them totally stable. The Michelin rep said the PR4s have softer sidewalls than the PR2s or PR3s hence not liking the lower pressure, and hence the PR4GTs, with stiffer sidewalls, for the heavier touring bikes.
I did find that the PR4s are far more sensitive to pressures then the PR2s. I used to run my PR2s with a couple of PSI below the “official” 36/42. This gave slightly better grip and feel without any loss of stability. Doing this on the PR4s caused unwelcome movement towards the limit in corners. I contacted Michelin and was advised by the Michelin rep to run them a couple of PSI harder than standard. This solved the movement problem and made them totally stable. The Michelin rep said the PR4s have softer sidewalls than the PR2s or PR3s hence not liking the lower pressure, and hence the PR4GTs, with stiffer sidewalls, for the heavier touring bikes.
black-k1 said:
Iang84 said:
Just changed to a set of PR4 from PR3 I'm not liking them at the moment as they feel a little soft but that could be because the standard apparently have slightly softer sidewalls than the GT which is on par to PR3 strength I'm going to try a slightly higher pressure in the rear to see if this combats it if not guess I'll have to live with it as they don't do a GT version in a 160 even though my bikes a lardy 230kg wet
black-k1 in other thread said:
PR4s work fine for fast road work on my K1300S, (including some very spirited rides in Spain where temperatures were in the low to mid 30’s C) which is heavier and more powerful than the ‘Blade. Perfect tyres for road work and fine for the track unless you plan on being the fastest on the track.
I did find that the PR4s are far more sensitive to pressures then the PR2s. I used to run my PR2s with a couple of PSI below the “official” 36/42. This gave slightly better grip and feel without any loss of stability. Doing this on the PR4s caused unwelcome movement towards the limit in corners. I contacted Michelin and was advised by the Michelin rep to run them a couple of PSI harder than standard. This solved the movement problem and made them totally stable. The Michelin rep said the PR4s have softer sidewalls than the PR2s or PR3s hence not liking the lower pressure, and hence the PR4GTs, with stiffer sidewalls, for the heavier touring bikes.
I did find that the PR4s are far more sensitive to pressures then the PR2s. I used to run my PR2s with a couple of PSI below the “official” 36/42. This gave slightly better grip and feel without any loss of stability. Doing this on the PR4s caused unwelcome movement towards the limit in corners. I contacted Michelin and was advised by the Michelin rep to run them a couple of PSI harder than standard. This solved the movement problem and made them totally stable. The Michelin rep said the PR4s have softer sidewalls than the PR2s or PR3s hence not liking the lower pressure, and hence the PR4GTs, with stiffer sidewalls, for the heavier touring bikes.
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