I had a set of these on my ZX14 Streetfighter. Initially hated them. The front had a vibration problem (well into triple digit speeds) and I switched from a 190 50/17 to a 200 55/17 rear. My mistake, I figured.
A buddy who swears by these told me to check steering head bearings before condemning the tires. I did and had to replace the bearings. After several rebalances the front still had the high speed vibration. The front wore out and was replaced with a Dunlop Q4 and I finally acclimated to the rear. I absolutely rail through the high speed corners. The bike puts 200HP at the wheel and the tire has never stepped out or broke traction. At 4K miles the wear bars are flush with the tread.
Gonna order another rear. Docked one star for the front vibration. I highly recommend this tire.
SPORTEC™ M7 RR derives from Metzeler's experience in Road Racing activities including the “Isle of Man TT” and the “Metzeler Ulster Grand Prix”, featuring completely new profiles, structure materials, compounds and tread pattern.
Because our roads are not always perfect like racetracks, we have to face unexpected wet patches, debris, temperature drop or uneven tarmac.
Introducing a new concept of water drainage and contact feeling thanks to dual-compound on the rear tire combined with Interact™ technology and high silica compounds.
- Sporty Handling: the combination of profiles derived from the Road Racing activities with high stiffness structures delivers an extremely agile handling for a sporty riding style on all roads.
- Grip in all Conditions: 100% Silica compounds combined with a special tread pattern gives SPORTEC™ M7 RR the unique capability to keep the sporty riding stile also in cold conditions, wet roads and greasy and grimy tarmac surfaces.
- Extended Mileage: 20% more mileage compared to SPORTEC™ M5 INTERACT™. A dual compound solution on rear sizes allows the use of a specific material on the central slick portion of the tread pattern to increase abrasion resistance and extend the mileage capability.