SKU: PU03020994 MPN: 2526000 Metzeler Racetec RR Supersport Tire 190/50ZR17 Rear [73W]

Metzeler's Racetec RR Supersport Tire 190/50ZR17 Rear [73W].

Developed to win road races, RACETEC RR delivers maximum performance.

Grip Front:

• Road Racing courses feature multiple and variable conditions and RACETEC RR compound specifications have been developed to cope with all of them.
• The compound recipes of RACETEC RR blend a selection of polymers and resins with different grades of Carbon Black to maximize hysteresis - even on slippery surfaces.
• RACETEC RR fronts conform to the micro-granularity of tarmac delivering more grip and wear resistance, to last longer on severe asphalt; the blend of polymers also features high flexibility at lower temperatures.
• Thanks to RACETEC RR distinctive versatility of use on a wide range of asphalts and temperatures, the FRONT tire compound choice should be primarily made on rider's preferences between higher stability and precision when entering the corner (K2 version) rather than predictability and "edge grip" feeling (K1 version).

Grip Rear:

• Road Racing courses feature multiple and variable conditions and RACETEC RR compound specifications have been developed to cope with all of them.
• The compound recipes of RACETEC RR blend a selection of polymers and resins with different grades of Carbon Black to maximize hysteresis - even on slippery surfaces.
• As for REAR tire, choice of version is based on asphalt friction coefficient (high severity/friction and low severity/friction, depending on the circuit or road race) and asphalt temperature (with the threshold being around 77/86 degree).
• The dual-compound Cap and Base scheme of RACETEC RR rears feature a highly conductive center strip, which supports the shoulder compound from underneath and warms it up during long straights by redistributing the heat generated to the shoulders, maintaining them in the operative temperature and ensuring grip when going into lean.​

Stability:

• RACETEC RR features a composite structure, differentiated between the crown and the sides of the carcass to react properly to different circumstances.
• Stability is critical in Road Racing when riding on long straights at full speed (because of aerodynamic interferences) and when the bike passes over drain covers, repair patches or jumps.
• In both cases stability may be temporarily lost in the rebound following the bike's quick lift and drop back down to the asphalt, compressing both tires and shock absorbers.
• The crown structure is made with a special Rayon fiber. This is characterized by a high rate of linear density and stiffness and is capable of maintaining its shape under a high stress and load strain. The fiber further assists to dampen the rebound stroke which absorbs the shock by distributing it through the whole carcass, and dampens the rebound while getting back to the initial shape.
• The side structure is designed to be stiff, with a low deformation ratio, so to sustain the entire architecture under stress, and to guarantee trajectory precision both on long fast and full lean.​

Duration:

• Road Race sessions can last up to 240Km (150miles), which is more than three times an average track race; durability, integrity and performance consistency are keys to win.
• All the compounds of RACETEC RR range feature high resistance to abrasion thanks to a homogeneous dispersion of the components in the polymeric matrix obtained through our exclusive and patented continuous mixing process.
• The tread groove layout minimizes the wear and also to disrupt the forces which crease the compound, known as Schallamach's wear waves.
• The disruptive angle of RACETEC RR grooves are the result of advanced analyses based on Road Racing activity.​

Features:

• Minimises wear
• Disrupt wear waves
• Maximise slick area and contact patch

Specifications:

• Product Name: Tire
• Style: Street / Supersport / Racing
• Type: Tubeless
• Position: Rear
• Tread Pattern/Model: Racetec RR
• Width: 160
• Aspect Ratio: 60
• Rim Diameter: 17
• Tire Size: 160/60Zr17
• Sidewall: Blackwall
• Construction: R (Radial)
• Load/Speed-Index: (69W)
• Market Segment: Cruiser / Street
• Compound: Hard / K3
• Features: E-Marked