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since 2003

Mountain Bikes

Focus Jarifa Impulse 27R 2.0

  • Frame type


  • 250W Impulse 2.0 Offroad motor

  • 612Wh Li-Ion 36V battery

  • 10-speed Shimano XT Low Profile gears

  • Shimano hydraulic disc brakes

  • RockShox Reba suspension with 100mm travel

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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 XT Low Profile gears, RockShox Reba 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 Reba 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

All in all this bikes epic and fast

by from Barnet, Hertfordshire on

I bought this bike as I hired a 3.0 whilst in Austria and enjoyed the experience. When I first got it out of the box I was taken back by how good looking the machine was. Lovely classic lines of a hard tail that to my mind took me back to the earlier designs of the 90's. The curvature of the downtube from neck of the headtube reminded me of the old Cannondale Raven MK2. Almost like a swans neck with its graceful good looks.

So I digress.... I set it up and just had to test it out as I was desperate to try. Now I was well aware that our silly government can't cope with a bike doing more than 15mph and that was a worry to me. This bike isn't light and I was very worried that once the engine cut out I would struggle. Oh how wrong was I to worry about it labouring under my own steam. This bike will rocket you up any hill as it did the beast I live at the bottom of. And on a flat it shoots off like a greyhound it made me smile.

My one seems to be set at a 16mph cut out and when it cuts out fear not the bike still flies. I was easily holding speeds of 22-23mph and I'm not sure how? All I can say is, on my daily commute in one day of riding I shed 16 minutes of my normal time going home. Christ knows what I did in the morning as I was half asleep at 5:30am lol.

All in all this bikes epic and fast, ok you need to pedal a bit but come on it's a bike so it's supposed to happen. Anyone interested in getting one really should go ahead as it's just brilliant fun on two wheels. I really can't wait for work tomorrow and I've never said that in my life. When the weekend comes I'm going to hit some serious trails. My advise is get one and be extremely happy you won't regret it.

Jarifa Impulse Video Review

by from on

Here's a great video review of the Jarifa Impulse 27R 3.0 which is very similar but slightly lower spec to the 27R 2.0

Technical Specifications

Frame Impulse 27R V1, alloy
Fork RockShox Reba RL, 15QR 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 XT Low Profile Plus
Shifters Shimano XT
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 Deore
Tyres Continental X-King, 55-584, foldable
Hubs front: Shimano Deore, 15 mm E-Thru, rear: Shimano Deore,12 mm E-Thru
Rims Concept EX Disc
Colour Granitegrey 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.

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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.

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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

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