Road Sport Battlax BT Hypersport S21
Road Sport
Tire Road Sport Battlax BT Hypersport S21

The new Battlax Hypersport S21 radial comprises an impressive mix of proven wet technology and innovative new features. It is designed to complement sports bike on any road condition, without compromising safety and increase your bike riding pleasure.

Product Concept:

  • High street performance
  • Increased confidence during comering
  • Longer life span of the tyre (36% more mileage)

Front Tyre

  • 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

Rear Tyre

  • Larger Crown Profile
    • Together with optimised belt construction and groove positioning, it upgrades the rear feeling and increases cornering stability
  • Contact Patch
    • 30% less slip area on the contact area
  • Benefits
    • More adhesion and grip
    • Lesser wear due to reduced slip
    • Better traction with control


  • New Compound
    • New shoulder compound to tame the road and give the right confident on maximum lean angle
  • Benefits
    • The new compound provides a larger micro contact patch
      • Higher grip
      • Faster cornering
      • High confidence on any condition

Ultimate Eye Technology:

  • 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 visualises tyre behaviour in different conditions

Many of the improvements brought to S21 were achieved using Bridgestone’s new Ultimate Eye (U- EYE) indoor testing facility – the first tyre to benefit from this technology. U-EYE visualises the contact behaviour of a tyre under different speeds and conditions, analyses contact patch pressure distribution, and helps find the optimal combination of compound, tread design, construction and profile.

Sizes For This Tyre


Pattern Tyre Size TL/TT Meas. Rim Appr. Rim
Battlax Hypersport S21 110/70 ZR17 T/L 54W M/C 2.75-3.50
120/60 ZR17 T/L 55W M/C 3.00-3.50
120/70 ZR17 T/L 58W M/C 3.00-3.50
130/70 ZR17 T/L 61W M/C 3.50-4.00


Pattern Tyre Size TL/TT Meas. Rim Appr. Rim
Battlax Hypersport S21 150/60 ZR17 T/L 66W M/C 4.00-4.50
160/60 ZR17 T/L 69W M/C 4.50-5.00
180/55 ZR17 T/L 73W M/C 5.50-6.00
190/50 ZR17 T/L 73W M/C 5.50-6.00
190/55 ZR17 T/L 75W M/C 5.50-6.00
200/55 ZR17 T/L 78W M/C 6.00-6.50

Note: Some sizes are available on indent basis only and are subject to availability.