Street Catalog

• Dry grip and wear life significantly improved without sacrificing wet performance. • 3D cross grooves designed to optimize rigidity and improve contact with the road. • Dual compound front tire (3LC) with revised profile generates higher grip at lower lean angles. • Triple compound rear tire (5LC) with revised profile provides improved stability and durability. • Enhanced Micro-contact-patch Compound (EMC) technology used for both front and rear shoulder compounds. EMC increases grip potential and improves thermal stability to make sure the tire performance remains consistent as temps go up. • Compares to: Dunlop Q3+, Michelin Pilot Power 3, Pirelli Diablo Rosso II, Metzeler Sportec M7 RR. *All comparisons made to Bridgestone S20 EVO Ultra-High Performance Sport Radial S21 FRONT S21 REAR Center rib area reinforces tread rigidity which helps stability during cornering, braking, and acceleration. Plus, it extends wear life. Open Shoulder design gives large contact patch when leaning to enhance grip during cornering. Triple Compound Dual Compound Tread rigidity is optimized by cross grooves to improve contact with the road surface and improve front grip. *Applied technologies are subject to sizes 3D finish at groove-end enhances tread rigidity for improved stability. TIRE SIZE LOAD SPEED TIRE CONSTRUCTION & PATTERN OVERALL DIAMETER TREAD WIDTH OTD 32NDS (MEASURING RIM) APPROVED RIM MAX P.S.I. PART # FRONT 130/70ZR16M/C (61W) S21F BW TL 23.2 5.1 5 (3.5) 3.5~4.0 42 835379 166.98 120/60ZR17M/C (55W) S21F BW TL 23.0 4.7 5 (3.5) 3.0~3.5 42 835380 173.16 REAR 160/60ZR17M/C (69W) S21R BW TL 24.9 6.5 8 (4.5) 4.5~5.0 42 835382 199.96 180/55ZR17M/C (73W) S21R BW TL 24.8 7.3 8 (5.5) 5.5~6.0 42 835383 212.33 190/50ZR17M/C (73W) S21R BW TL 24.9 7.5 8 (6.0) 5.5~6.0 42 835384 243.25 200/55ZR17M/C (78W) S21R BW TL 25.9 7.9 7 (6.25) 6.0~6.5 42 835388 276.23 SPORT TIRES luggage body accessories handlebars & grips mirrors cables & levers electrical lighting engine fuel & intake air & oil filters clutch brakes drive steering & suspension bearings chemicals tools & shop trailer exhaust 20 tires