INTRODUCTION
The Battlecross E50 : Be a contender in any enduro competiton The Battlecross E50 is the outcome of years of off-road technology development. It is road homologated and can be used in all Enduro competitions. The Battlecross E50 is the tyre helping you overcome any obstacles and achieve the highest levels of performance on all types of terrain. It is incorporating Battlecross Motocross technology transferred and optimized for real enduro usage. The Castle block technology increases the edge effect of the block and ensures great traction capabilities from soft terrain to wet hard terrain. The newly designed sidewall has not only improved the absorbing characteristics of the tyre but also made the mounting of the tyre a lot easier. Don’t be afraid to change your tyres at the track ! The Battlecross E50 has shown improvements in all performance areas and on all types of surfaces vs. its predecessor.
PRODUCT OVERVIEW
1000cc
600cc
400cc
250cc
Race
Sports
Touring
Custom
Bridgestone’s Battlecross E50, the new partner to push your boundaries
Adventure
Off Road
Scooter
CONCEPT and METHODOLOGY
Product concept To offer a complete lineup with a single compound choice while providing outstanding performance capable of winning any Enduro championship. Provide a tyre with a wide operating range, suitable for beginners as well as top level Enduro riders.
Technical aims • • •
Increase Cornering grip Increase the Traction forces Upgrade mounting/rim fitting ease
Methodology • • •
Pattern design – linked to block rigidity and traction performance Battlecross Technology incorporation : Castle block and Bunker Sidewall compound and construction upgrade
PATTERN DESIGN
Castle Block technology + Bunker • The castle block has a convex section in its block enhancing the edge effect. • The additional edge effect provides extra grip in both cornering (front) and traction (rear). • Offers flexible tyre response on changing surfaces as the contact pressure vs. conventional blocks is increased. • The bunker area is the small incision between the blocks. It produces a small amount of traction power when the tyre is fully buried in the surface.
Benefits
• Extra cornering grip • Additional traction forces • Increased utilization range • Effective on changing surfaces
PATTERN DESIGN
Front Edge component (Lateral) • The New pattern design and block positioning has increased dramatically the lateral edge component of the front blocks (+60%). • Decreasing slightly the lateral stiffness of the front blocks (block rigidity) in order to provide extra cornering feeling.
Rear Edge component (Longitudinal) • The New pattern design and block positioning has increased dramatically the longitudinal edge component of the rear blocks (+120%).
Rear blocks deformation under traction forces
• Increasing slightly the stiffness of the rear blocks (block rigidity) in order to transmit more traction force to the surface.
Benefits
170
E50F
160 150 140 130 120
110
ED663
100 90 90
95
100
105
Lateral Block Rigidity (INDEX)
E50R
Longi. Edge Component (INDEX)
Lateral Edge Component (INDEX)
ED668
110
240 220
• Consistent performance • Improved feedback • Increased confidence • Improved Cornering grip • Improved Traction grip
E50R
200 180 160 140 120
ED668
100 90
95
100
105
110
115
Longituginal Block Rigidity (INDEX)
120
SIDEWALL / MOUNTING
Sidewall design and compound ED668
E50R
1
1
2
2
• 1) Changing from a harder tread rubber integrated with the sidewall rubber to an optimized dual compound division. • 2) Changing the shape and profile at the bottom part of the sidewall by redesigning the rim guard part. Benefits
• Optimized sidewall rigidity with extra absorbing forces • Improved rim fitting • Increased mounting ease
PERFORMANCE OVERVIEW
Date of test：Jun./2017、 Venue：Pietramurata (I) Vehicle：Husqvarna TE300 Tyre size：90/90-21M/C、140/80-18M/C
Traction 150
Rocks
100 Overall
100
Braking
Overall
50 ED66X
Absorbing
Stability
Wood
100 Overall
ED66X
0
Braking 50
50
ED66X
0
E50
E50 Cornering
Stability
Cornering
Traction 150
Gravel Braking
Absorbing
E50
Stability
100 Overall
ED66X
0
E50 Cornering
Traction 150
Braking 50
0
Absorbing
Dirt
Traction 150
Absorbing
Cornering
Stability
Improvements
• Improvements on all kinds of surfaces • Biggest improvement on traction grip
LINE-UP
PART 8001951 8001952 8001953
SIZES/DESCRIPTION TYRE 90/90-21 (54P) E50F FIM ENDURO TYRE 120/90-18 (65P) E50R FIM ENDURO TYRE 140/80-18 (70P) E50R FIM ENDURO
RETAIL AVAILABLE $ 129.95 Now $ 145.95 Now $ 149.95 Now
KEY POINTS
• • • •
Performance increase on all surfaces Huge steps in Cornering and Traction Grip Increased ease to mount 1 compound to do it all