PRODUC PRODUCT POSIT POSITIONIN IONING 1000cc 600cc 400cc 250cc Race Sports Touring Custom Adventure Off Road Scooter High-performance sports radials for motorcycling enthusiasts seeking the thrill on winding roads, durability combined with the highest performance.
DEVE DEVELOPMENT OPMENT Product concept Hypersport radials that delivers: Highest street performance Confidence during cornering Longer life span of the tyre. Technical aims Upgrading the full package in: Dry performance Big step forward in mileage. DRY / Handling and Stability Wet + Mileage
DEVE DEVELOPMENT OPMENT Ultimate eye Ultimate EYE (U-EYE) is the newly developed indoor testing facility by Bridgestone R&D. U-EYE simulates real-life riding conditions for consistent objective testing. U-EYE tests and visualizes tyre behaviour in different conditions.
NEW NEW PATTERN Pattern design Aim: Stability and handling + consistent high grip Groove positioning for best combination of sea to land ratio 120 120 120 120 100 100 100 100 Sea/land ratio index 100) = 100) Sea/land ratio index 0) 100) 80 80 80 80 = 10 20 EVO max = max = 60 60 60 60 EVO m 40 40 40 40 S20 20 E S20 20 20 20 20 0 0 1 2 3 4 1 2 3 4 5 6 7 8 Lateral position Shoulde Lateral position Shoulder Center Center r S20 20EVO S20 20EVO S21 21 S21 21 Benefits Stability on front during braking and on rear during acceleration Additional grip in straight line and with lean angle
CO CONST NSTRU RUCTION: CTION: FRO FRONT NT Smaller Crown profile Higher camber thrust forces generated with increasing the lean angle. Contact patch Better pressure distribution Construction and Technologies 3LC construction high-stiffness bead fillers Benefits Better handling and precision without losing the superb neutral feeling.
CO CONST NSTRU RUCTION: CTION: RE REAR AR Larger Crown profile Together with optimized belt ~30% less construction and groove positioning, it upgrades the rear feeling Increased cornering stability. slip area Contact patch 30% Less slip area in the contact area Benefits More adhesion and more grip Less wear due too reduced slip Better traction with controllable feeling
CO COMPOUND MPOUND New compound New shoulder compound to tame the roads and give the right confidence on maximum lean angle. Benefits The new compound provides a larger micro contact patch. Higher grip Faster cornering High confidence in any conditions
TRAC TRACK K TEST TEST RESULTS Track Test data* Cornering speed data : Speed @ A @ A (Entry) Speed @ B @ B (Exit) Acc.@ .@ Exit S20 20EVO 100 100 100 100 100 100 S21 21 102 102 104 104 117 117 Lap time comparison : S20 20EVO 100% 100% S21 21 98,2% Gain 2 seconds on lap time* *Test Conditions : Sugo circuit (JP), Honda CBR 1000 RR, 120/70ZR17 – 190/55ZR17, IP 2.3 bar front 2.5 bar rear. Track Conclusions Higher stability of S21 allows Higher entering speeds 2 seconds faster Keeping a sharper line Exiting the corner faster with higher speed lap time and acceleration. *based on a lap of 2 minutes
PERFOR PERFORMANCE MANCE OV OVER ERVIEW VIEW DRY S Straight stability DRY Co Cornering WET stability overall WET DRY grip grip WET DRY Handling at at limit Handling DRY overall 36% more mileage Major improvement Dry performance Maintain recognised wet performance 36%* more mileage. *Test Conditions: Internal test facility Bridgestone Technical center Japan.
PRODUC PRODUCT LIN LINEUP EUP Front Rear Sizes Front 11 110/ 0/70 70ZR17 17M/C (54 54W) Front 120/ 12 0/60 60ZR17 17M/C (55 55W) Front 12 120/ 0/70 70ZR17 17M/C (58 58W) Front 130/ 13 0/70 70ZR16 16M/C (61 61W) Rear 150/60ZR17M/C (66W) Rear 16 160/ 0/60 60ZR17 17M/C (69 69W) Rear 180/ 18 0/55 55ZR17 17M/C (73 73W) Rear 19 190/ 0/50 50ZR17 17M/C (73 73W) Rear 19 190/ 0/55 55ZR17 17M/C (75 75W) Rear 20 200/ 0/55 55ZR17 17M/C (78 78W) Total 10 10 sizes
30% less slip area 2 seconds faster lap time 36% more mileage
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