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Pre-production Zero SR/F naked ridden

Published: 23 April 2019

Zero’s new torque-laden SR/F could lure more riders towards an electric future

ZERO SR F  (2019-on)

Zero’s new torque-laden SR/F could lure more riders towards an electric future

  • At a glance
  • 110 bhp
  • 82 miles range
  • Medium seat height (787mm)
  • New: £17,990

The new SR/F is the most advanced Zero electric bike yet. With machines set to hit dealers in May, MCN grabbed the opportunity to ride a pre-production version of the £17,990 Standard model (or £16,490 with the £1500 government plug-in vehicle grant).

Boasting 110bhp and 140ftlb of torque (48.5ftlb more than a Ducati Panigale V4S...), the bike is powered by an all-new ZF75-10 motor with a ZF14.4 lithium-ion battery. Shod with grippy Pirelli Diablo Rosso IIIs and suspended by fully-adjustable Showa hardware front and rear, the SR/F is a cut above the existing models in Zero’s range.

The riding position is reminiscent of a conventional middleweight naked, with your legs wrapped around a fat, tank-shaped storage area. A seat height of 787mm keeps it comfortable over long distance.

One of two versions available, the more expensive £19,990 Premium model benefits from a faster 6kW charger over the conventional 3kW system, meaning half the charging time. You also get heated grips, a fly screen and aluminium bar ends as standard.

The SR/F uses Zero’s latest Cypher III operating system, featuring Bosch cornering ABS, traction control, and drag torque control from the motor. A specially-designed app allows the rider to customise their rider mode preferences, which consist of Sport, Eco, Street and Rain, as well as ten programmable options.

Sport is the most engaging, but requires a steady hand to prevent the battery draining rapidly. This proved to be problematic for the prototype on our 84-mile test, with the battery dropping from 90% to 25% after 50 miles of A-roads in Eco mode and the occasional twisty lane in Sport.

The verdict

The Zero SR/F is a serious step in the right direction from the Californian electric motorcycle company; offering European roadster looks alongside quality components to create a luxury package that really works on the road.

Unfortunately, this brilliance is limited by the battery, which begins to rapidly deplete as soon as you start to wind on the throttle enthusiastically. This is a shame because winding on is the best part of the bike, with the huge dollops of torque providing an addictive rush that makes overtaking a cinch.

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Facts & Figures

Model info
Year introduced 2019
Year discontinued -
New price £17,990
Used price -
Warranty term -
Running costs
Insurance group -
Annual road tax -
Annual service cost -
Performance
Max power 110 bhp
Max torque 140 ft-lb
Top speed -
1/4-mile acceleration -
Average fuel consumption -
Tank range 82 miles
Specification
Engine size -
Engine type High efficiency and power dense, 900 Amp, 3-phase AC controller with regenerative deceleration
Frame type Steel trellis with concentric swingarm
Fuel capacity -
Seat height 787mm
Bike weight 220kg
Front suspension Showa 43mm upside down forks. Preload, compression and rebound adjustable
Rear suspension Showa 40mm piggy-back reservoir shock. Preload, compression and rebound adjustable
Front brake Four piston calipers, 320mm discs
Rear brake Single piston floating caliper, 240mm disc
Front tyre size 120/70x17
Rear tyre size 180/55x17

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