UK Home of Advanced
Electric Bikes
since 2003

Mountain Bikes

Focus Jarifa Impulse 27R 3.0

  • Frame type


  • 250W Impulse 2.0 Offroad motor

  • 612Wh Li-Ion 36V battery

  • 10-speed Shimano SLX Low Profile gears

  • Shimano hydraulic disc brakes

  • RockShox XC32 suspension with 100mm travel

Book a Demo


Powered by the new Impulse 2.0 inverted centre motor and a centre-mounted 36 volt 17Ah battery. The Jarifa Impulse 27R is superbly well-equipped with Shimano hydraulic disk brakes, Shimano SLX Low Profile Plus gears, RockShox front suspension with 100mm travel, new illuminated handlebar controls, Continental X-King tyres.

Impulse 2.0

Providing an enormous 70Nm torque and working with the gear shifter to provide seamless transmission it's the most capable crank drive unit around. Kalkhoff have engineered a more powerful, efficient, quieter motor that supplies massive assistance from a standing start and cuts all hills down to size.

Shift Assist

A genuine innovation this year - every time you change up or down a gear, power drops away for a matter of milliseconds for optimal gear shifting. This does a number of great things - it extends your gears mechanical lifetime, feels satisfyingly natural and makes for a smoother application of all that power. They had to invent a litte electromechanical gadget to detect gear changes that worked with the motor. They succeeded and the result brings a new feeling of confident power to riding a Kalkhoff electric bike.

27R Wheels

The 27R wheels featured on the Jarifa offer improved rollover, more traction and better momentum than 26" wheels while also providing quicker acceleration, improved angle of attack and less weight than 29" wheels making them a great all round offroad wheel for any conditions.

Other winning features

  • Compact multifunction LCD console - Speed, Charge, Assistance Level, Total Miles, Trip Miles
  • RockShox XC32 forks with lock-out (can be sprung or rigid if you prefer)
  • Handlebar-mounted control - illuminated with Walk Assist button, on/off, power controls and options.
  • 612 Wh Lithium tri-metal battery
  • 1100 cycle battery lifetime, more than twice that of the Bosch battery. So 50% extra capacity and 120% extra lifespan
  • Continental X-King tyres

Ratings and Reviews

Jarifa Impulse 27R 3.0 Video Review

by from on

Technical Specifications

Frame Impulse 27R V1, alloy
Fork RockShox XC32 TK RL 100mm travel
Motor Impulse II Offroad 36 V / 250 W, with sensor-shift-technology
Battery Impulse Li-Ion 36 V / 612 Wh
Display Impulse Compact LCD, with control panel and pushing assistance
Gears 10-speed Shimano SLX Low Profile Plus
Shifters Shimano SLX
Ratios front: 38, rear: 11-34
Crank Focus, alloy
Handlebar Concept EX Riser, 720 mm
Stem Concept EX
Saddle Concept EX
Seatpost Concept EX
Brakes Shimano M396
Tyres Continental X-King, 55-584, foldable
Hubs front: Shimano Deore, rear: Shimano Deore, 12 mm E-Thru
Rims Concept EX Disc
Colour Diamondblack matt

Specification subject to change without notification

Quality Electric Bikes Supplier

First Class Service

We specialise in providing the best electric bikes and the smartest cycling accessories in the UK. We also offer the most responsive and knowledgeable after sales service.

Find out more

Finance Options Available

All our new bikes are available to buy with interest-free finance (typical 0% APR). You can ease the cost of ownership by paying a deposit and choosing one of our finance packages when checking out.

Find out more

Book a Test Ride

Sometimes it takes a test ride to understand what an e-bike can do for you. Please visit one of our showrooms or take a test ride with a local Kalkhoff owner who's also a demonstrator

Find out more