The Storm ST is the first tire to include Avon’s new "Reactive Footprint" technology.  This technology marries Avon’s unique variable belt density carcass with Lifetime Profile Engineering to produce a footprint which changes size and shape, depending on the bike’s lean angle, for the full life of the tire. The result is a contact patch that grows as the bike leans, giving more grip in corners while minimizing wear rates when traveling in a straight line. This technological breakthrough could eliminate the need to use dual compounds and would help solve the uneven wear problems associated with them.

These tires seem to be the favorite of the aggressive peg draggers club. Appear to be excellent in the corners and adverse weather conditions. Tread life to me was equal to the Bridgestones.

Michelin - Pilot Road 2 120/70ZR-18 & 170/60ZR-17

The ideal balance Independent tests confirm the Pilot Road 2 offers better wet grip and longer tread life than any of its competitors. How did Michelin incorporate these two contradictory traits in one tyre? MotoGP-derived 2CT technology makes it possible, using two distinct rubber compounds to achieve what was once thought impossible.

Compared with the original PR's, the PR 2's are much better with reports of  less noise, lighter handling, more stable when leaned over and as good if not better in the rain. one rider reported, "..... that my issue with the ST "dancing" around in dirty air has just about disappeared with the PR 2's."  Most folks seem to like them and rebuy. Appears to be an excellent all round tire with long life.

Bridgestone BT020F - currently installed

BT020F Front Tire 120/70ZR18 #146438

BT020F Rear Tire  170/60ZR17#146472

Description: Sport Touring Radial designed for touring oriented sport riders offering solid performance and high mileage. Silica-enriched compound offers exceptional level of grip on both wet and dry surfaces. Mono-spiral belt construction offers high speed stability and improved shock absorption. Comprehensive Tire Design Method provides excellent handling and cornering performance. W-rated for speeds up to 168 mph. Bridgestone 020 tires are high mileage for highway travel, but wear quickly under more twisty conditions. Faster wear in the summer months has been noted. Sounds like a good all round tire. Others think it is a well rounded tire.

These tires are the standard one listed in most catalogs at this point in time.

After a weekend of riding on the Bridgestones, I can say right off the bat they are much quieter as well as smoother riding. In Tennessee we have  beautiful and moderately twisty roads which require a good all around tire compound. I ride on the conservative side. Which means I cruise and occasionally get " a little sporty". There are many choices out there as well as many different riding styles. I too, as others as well, like to get more than 10k miles out of a set of tires. I have heard individuals getting up to 15k miles out of their Bridgestone tires, so I will keep my fingers crossed.

Metzeler ME-Z4 Front Tire 

Developed to provide a new level of performance and increased mileage for the next generation of sport/sport touring bikes. ME-Z4 front is the first 0 degree steel radial front, which increases stability and reduces operating temperatures. 0 degree steel belt reduces tire deformation under hard braking, reducing kickback. Lower operating temperature allows use of stickier compounds without sacrificing mileage. Only one steel belt is needed, producing a lighter tire and allowing deeper tread for even longer life without adding weight. Every street tire made in Metzeler's German factory is inflated, spin-balanced and personally inspected.

Suggested parings are with the Metzeler ME-880 rear or the Bridgestone BT020. The Z4 is said to be a good performer, but only on the front as the rear tire goes away quickly.
 

Metzeler Z6 Roadtec Tires

Excellent wet performance with solid contact feeling for outstanding traction and easy handling characteristics. "Fine Carbon Matrix" compound: best dry grip in the segment, engineered to exploit the performance offered by modern bikes, but still delivering a long mileage. Specifically developed contour for confidence-inspiring overall riding feeling friendly feedback on all bikes. Ride at your best and simply at ease with high safety margins and great comfort.

Suggested parings are with the Metzeler ME-880 rear or the Bridgestone BT020. The Z6 is said to be a good performer, but only on the front as the rear tire goes away quickly.
 

Metzeler ME-880 Rear Tire

Machine-specific carcass construction for exceptional riding comfort and stability at all speeds, even under heavy load. Tread pattern design with offset central groove's alignment providing uniform tread wear, very high mileage for never-ending riding fun. Very smooth handling and highest stability for easy riding in all conditions, at full speed on straight but not as sticky as some on twisty mountain roads.

For the Roadsmart, Dunlop created a new radial carcass construction process called Flex Steel-Joint Less Belt (FS-JLB) that's used in the making of the front and rear - an apparent first for Dunlop production tires. In simple terms, a zero-degree joint-less steel belt makes up the layer underneath and two plies of rayon - used for its excellent damping qualities - are laid at opposing angles just below. This type of construction, says Dunlop, minimizes distortion of the carcass

Riders report excellent handling in all conditions. Tire life is at least comparable to the Bridestones if not slightly better.