The SR is one of the fastest electric bikes designed by Zero. It features a comprehensive list of special technological features which enhance its acceleration and overall performances.

The main part is played by the larger 660 amp motor controlled which delivers 25% more power and 56% more torque than the regular S model. Thanks to this boost of power, the Zero SR can propel you from zero to 60 mph in less than 4 seconds and has a top speed of over 100 mph.

Apart from the potent motor, the Zero SR is also fitted with plenty of first class components such as Showa suspensions and Bosch anti-lock brakes.

The Zero SR is available only with a black/red paint job and can be yours for no less than $ 17,345.

Hit the jump for more information on the Zero SR.

  • 2015 Zero SR
  • Year:
    2015
  • Make:
  • Engine:
    Z-Force® 75-7 passively air-cooled, high efficiency, radial flux, permanent high-temp magnet, brushless motor
  • Transmission:
    Clutchless direct drive
  • Horsepower @ RPM:
    67
  • Torque @ RPM:
    106
  • Top Speed:
    102 mph
  • Price:
    17345

Overview

2015 Zero SR Exterior
- image 577230

More Power. Higher Top Speed. Greater Acceleration.

The “R” configuration of the Zero S is designed for riders who simply want to go faster and accelerate harder. Aptly named on account of its performance and ability to dominate, the Zero SR features a larger 660 amp motor controller that provides 25% more power and 56% more torque. To accommodate the increased power, the Zero SR motor uses higher temperature magnets to ensure better performance during extended durations at higher speeds.

Capable of doing 0-60 mph in under 4 seconds with a top speed of over 100 mph using direct drive, the Zero SR offers spirited riders an edge in competitive riding. The only motorcycle in the lineup available in red, the tank section of the motorcycle is highlighted with a sophisticated “Zero SR” emblem and the tail section features the motor controller with a bold and elegantly designed heat sink.

2015 Zero SR Key Features:

2015 Zero SR Exterior
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New For 2015

Adding To Exceptional.
The Zero S and Zero SR have always offered breathtaking power, seamless acceleration and the purity of a ride that enhances the most enjoyable elements of the traditional motorcycle experience. The 2015 models will all but disappear beneath you as you fly down the road with new Showa suspension, Bosch Anti Lock Brakes (ABS) and high performance Pirelli tires. Already the longest-range electric motorcycles in production today, the Zero S and Zero SR now offer riders 10% greater range by way of a newly optimized battery cell configuration. That’s up to 185 miles of exhilaration.

Zero worked in close collaboration with Showa to develop suspension for the Zero S line that provides excellent small bump compliance, predictable control of bigger impacts and exceptionally smooth action under all conditions. Torsional rigidity of the front end was increased for improved handling, and a hollow front axle was used to reduce unsprung weight. Suspension settings are now completely customizable to meet the demands of a wide variety of riders.

Designed to make the twisties even more enjoyable, the contemporary new wheels, Pirelli tires and ABS work together with the highly tuned suspension to provide confidence and control. Riders will also enjoy the stylish new mirrors that provide excellent visibility of the vehicles they just passed.

Showa suspension
• Every Zero is now fully equipped with Showa suspension
• Exceptionally smooth action for improved comfort and control
• Fully adjustable settings to meet the demands of a wide variety of riders
• Increased torsional rigidity on the front end for improved handling
• Hollow front axle for reduced unsprung weight
• Durable and highly protective new fork guards on the Zero DS and Zero FX
• Developed in close collaboration with Showa

Bosch anti-lock braking system (ABS)
• Advanced Bosch ABS is now standard on every model
• ABS can be switched on or off depending on rider’s preferences
• Incredibly smooth actuation for improved control under extreme braking
• Larger 320 mm carrier-less front rotor increases stopping power on the Zero S, Zero SR and Zero DS
• New braking systems with refined hydraulic ratios for improved braking power and modulation
• Adjustable front brake lever for customizable ergonomics on the Zero S, Zero SR and Zero DS

Up to 185 miles with higher energy density
• The Zero S and Zero SR city range can now be extended to 185 miles using the Power Tank accessory
• Newly packaged battery cell offers 10% more energy density on the Zero S, Zero SR and Zero DS

New wheels and Pirelli tires across the entire lineup
• New cast alloy wheels on the Zero S, Zero SR and Zero DS
• New high performance Pirelli tires for every model combine excellent grip with long lasting mileage
• The Zero S, Zero SR and Zero DS wheels are now equipped with a larger carrier-less front rotor to reduce unsprung weight and increase stopping power
• The Zero SR now uses softer compound Diablo Rosso II tires for even greater traction
• The Zero FX now features wider 1.85 x 21 front and 2.50 x 18 rear wheels and tires for increased strength and greater aftermarket tire options
• Larger, higher-capacity wheel bearings on every model to increase stiffness, versatility and durability

Improved rider interface
• Stylish new mirrors provide great visibility while also reducing motorcycle width
• Comfortable new grips use a softer rubber compound
• Newly contoured seat for improved ergonomics on the Zero S, Zero SR and Zero DS
• New throttle for improved action

2015 Zero SR Features and Benefits:

2015 Zero SR Exterior
- image 577228

Game Changing Z-Force® Power Pack

150+ Mi Range / 300,000+ Mi Lifetime
The 2015 Zero S and Zero SR feature advanced cell chemistry and battery management systems that provide greater capacity and range. Not only does the ZF12.5 power pack enable you to go beyond 150 miles, it is also designed to last the life of the motorcycle. The result of cutting edge research and development, each cell in the power pack is individually controlled and monitored to ensure maximum health. The highly efficient onboard charger minimizes charge time and can work in parallel with Zero’s scalable off-board charging systems. What does this mean? Simply put, the Zero S and Zero SR are leaders in acceleration, range and longevity for production electric motorcycles.

New Power Tank Technology

2015 Zero SR Exterior
- image 577226

Up To 185 Miles In The City
The Z-Force® Power Tank adds 2.8 kWh of power pack storage capacity to any 2015 Zero S or Zero SR. An optional accessory, the Power Tank can be added at any time during or after motorcycle purchase, bringing the maximum battery capacity to 15.3 kWh. With that much energy, you can expect to travel up to 185 miles in the city or 94 miles on the highway.

Revolutionary Z-Force® Motor

2015 Zero SR Exterior
- image 577225

Up To 67 Hp, 106 Ft-Lbs… and Incredibly Efficient
Zero Motorcycles designed the Z-Force® motor from the ground up to be compact, efficient and powerful. It provides you with exhilarating acceleration to a top speed of 102 mph as configured in the Zero SR. Completely air-cooled, the motor is designed to provide a fantastic riding experience minus the need for any regular maintenance. When slowing down, the motor generates electricity that is channeled back into the power pack to help extend ride times.

Frame and Bodywork

2015 Zero SR Exterior
- image 577222

Great To Look At. Even Better To Ride.
Aircraft grade aluminum is exclusively used in the construction of the twin spar frame on the Zero S and Zero SR. It is lightweight, strong and one of the main reasons that the motorcycles handle incredibly well. Designed to have a low center of gravity, the motorcycles are highly maneuverable and responsive. The refined appearance is completed with sleek bodywork with a contemporary, aggressive and naked look. The ‘tank’ section of the bodywork features an integrated storage compartment that is both lockable and removable. The tank section can also be replaced with the Power Tank accessory for an additional 2.8 kWh of power pack capacity.

Showa Suspension

2015 Zero SR Drivetrain
- image 577221

The Magic Ride
Zero worked in close collaboration with Showa to develop suspension systems that provide excellent small bump compliance, predictable control of bigger impacts and exceptionally smooth action under all conditions. Torsional rigidity of the front end improves handling, and a hollow front axle reduces unsprung weight. Suspension settings are completely customizable to meet the demands of a wide variety of riders.

Bosch Anti-Lock Brake System (ABS)

2015 Zero SR Exterior
- image 577220

Powerful. Precise. Control.
The Zero S and Zero SR feature an advanced Bosch anti-lock brake system (ABS) that improves control in a wide array of conditions and ensures the best braking performance, while a large 320 mm diameter carrier-less rotor increases stopping power.

Wheels and Tires

2015 Zero SR Exterior
- image 577215

Rolling Forward
Pirelli tires are standard on the Zero S and Zero SR, providing great traction, excellent durability and road feel. The tires are mounted to stylish cast alloy wheels that feature durable wheel bearings.

Dash and Controls

Impressive Information. Elegantly Displayed.
The dash is designed by Zero to quickly and accurately provide useful data on such information as state of charge, power output and your selected riding profile. You can toggle through three riding profiles, using the ergonomic right-hand switch gear, to better meet the needs of your ride: Sport, Eco, Custom. The dash screen features a cool blue backlit LCD display and integrates seamlessly into the front of the motorcycle. Want more information about the motorcycle while riding or at home? Try the Zero Motorcycles App.

Zero Motorcycles App

Get Your Motorcycle Dialed
Using the Zero Motorcycles App, you can see detailed information about your motorcycle such as the time until charged, average watts per mile, total charge cycles and much more. When parked, the app allows you to set the custom riding mode’s performance profile by adjusting the parameters for top speed, maximum torque and maximum regenerative braking. While riding, your phone transforms into a customized dash that provides detailed real-time motorcycle information. Synced using Bluetooth, the app works on iPhone and Android mobile devices. The app is available in English, German, French, Spanish and Dutch.

Direct Drive Gearing

Instant Torque With A Twist
Featuring clutchless direct drive, the Zero S is geared for rapid acceleration and maximum efficiency. With its higher output motor, the Zero SR takes advantage of taller gearing to achieve a top speed in excess of 100 mph. Without ever needing to shift, both models provide controlled and powerful acceleration until you reach your desired speed. The carbon fiber belt achieves minimal frictional losses for increased overall range and is integral to making the powertrain maintenance-free.

Charge Anywhere

Plug In At Any Standard Outlet
The Zero S and Zero SR charging system is integrated into the motorcycle and can be plugged in at any standard outlet. No additional equipment is required for standard charging. This allows you to conveniently charge in your garage, at the office or when you stop at one of your favorite places while enjoying a day out. Charging times can be reduced by up to 75% by using our scalable off-board charging system.*

*Requires optional accessories. Please see your Zero Motorcycles dealer.

Specifications

Motor Type Z-Force® 75-7 passively air-cooled, high efficiency, radial flux, permanent high-temp magnet, brushless motor
Controller High efficiency, 660 amp, 3-phase brushless controller with regenerative deceleration
Max torque 106 ft-lb (144 Nm)
Max power 67 hp (50 kW) @ 4,000 rpm
Top speed (max) 102 mph (164 km/h)
Top speed (sustained) 85 mph (137 km/h)
Acceleration, 0-60 mph (0-100 km/h) 3.3 seconds
Est. pack life to 80% (city) 339,000 miles (546,000 km)
Power pack Z-Force® Li-Ion intelligent
Max capacity 12.5 kWh
Nominal capacity 11.0 kWh
Charger type 1.3 kW, integrated
Charge time (standard) 8.6 hours (100% charged) / 8.1 hours (95% charged)
Charge time With one accessory charger 5.0 hours (100% charged) / 4.5 hours (95% charged)
Charge time With max accessory chargers 2.4 hours (100% charged) / 1.9 hours (95% charged)
Input Standard 110 V or 220 V
Transmission Clutchless direct drive
Final drive 132T / 30T, Poly Chain® GT® Carbon™ belt
Front suspension Showa 41 mm inverted cartridge forks, with adjustable spring preload, compression and rebound damping
Rear suspension Showa 40 mm piston, piggy-back reservoir shock with adjustable spring preload, compression and rebound
Front suspension travel 6.25 in (159 mm)
Rear suspension travel 6.35 in (161 mm)
Front brakes Bosch Gen 9 ABS, J-Juan asymmetric dual piston floating caliper, 320 x 5 mm disc
Rear brakes Bosch Gen 9 ABS, J-Juan single piston floating caliper, 240 x 4.5 mm disc
Front tire Pirelli Diablo Rosso II 110/70-17
Rear tire Pirelli Diablo Rosso II 140/70-17
Front wheel 3.00 x 17
Rear wheel 3.50 x 17
Wheel base 55.5 in (1,410 mm)
Seat height 31.8 in (807 mm)
Rake 24.0°
Trail 3.2 in (80 mm)
Frame 23 lb (10.4 kg)
Curb weight 414 lb (188 kg)
Carrying capacity 361 lb (164 kg)
Equivalent fuel economy (city) 462 MPGe (0.51 l/100 km)
Equivalent fuel economy (highway) 236 MPGe (1.00 l/100 km)
Typical cost to recharge $1.40
Standard motorcycle warranty 2 years
Power pack warranty 5 years/100,000 miles
Price $17,345

Quotes:

“The 2015 SR is equipped with a 660 amp controller which delivers 25% more power and 56% more torque, and this means we’re in for 67 hp and 106 lb-ft (144 Nm) of instantaneously-available torque. The new model year SR can now reach 102 mph (164 km/h) and comes with a sustainable top speed of 85 mph (137 km/h) which is in line with what you and I get to ride our bikes at in normal (legal) highway conditions. The direct drive high-temperature magnet motor is still passively air-cooled and benefits from the aid of regenerative deceleration.” — Autoevolution

“For the S and SR, that maximized battery capacity gives you up to 185 city miles, using the Urban Dynamometer Driving Schedule (UDDS), 115 miles at a steady 55 miles per hour, and 94 miles at a constant 70 mph. Put another way, the bikes return 462 MPGe in the city, 236 MPGe on the highway. Now we’re cooking without gas!” — Autoblog

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