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Kalkhoff Sahel Compact i8 2018 (11AH) Electric Bike


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Free delivery

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Collect in-store

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Easy returns

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Product Details

Kalkhoff Sahel Compact i8 2018 Compact 11Ah

The Sahel 20" wheel urban e-bike offers the same quality turbo-charged ride as a 700c wheel Kalkhoff electric bike, but in a more compact, storable format.

This is a good thing because their extra heft can make regular e-bikes comparatively unwieldy.

What's special about the Kalkhoff Sahel Compact?

  • The 20" wheels and the folding pedals make for more compact bicycle storage at home, at work, in the back of the car and so on
  • The Speed-lifter twist stem can quickly be turned in line with the frame - no tools required
  • 20" wheels make for an intrinsically quicker steering bike
  • Shimano Nexus 8 speed hub gears contribute to its compact design - no protruding derailleurs or cassette
  • To find out more about Nexus 8, see our blog

Same as regular Kalkhoff e-bikes

Impulse 2 power-assist motor
You can buy the Sahel Compact confident in the knowledge that Kalkhoff have sold over 400,000 e-bikes powered by German engineered Impulse motors and batteries.

Impulse 2 is Kalkhoff's own Centre Drive system, designed and manufactured in Germany where Kalkhoff are respected as the number one manufacturer of electric city/trekking/hybrid bikes. That's a significant accolade when you consider that Germany is Europe's biggest, fastest growing and most discerning eBike market.

The Impulse 2 drive unit is mounted at bottom bracket level (the strongest part of any bike) to power the crank (in contrast with most e-bikes which are front or rear wheel hub drive).

  • Most riders find Centre Drive power assist feels more natural than a hub-drive system
  • With the motor low down at bottom bracket level at the bike's mid point, the bike feels better balanced than an e-bike with the motor on the front or rear hub
  • With its lower centre of gravity a Centre Drive e-bike feels more stable
  • Wheel fitting/removal is much easier when the motor is central rather than wheel driven
  • Shift-sensor technology - the power assist cuts out for a fraction of a second when you change gear to prevent the jarring that can occur when you shift under load
  • This 80Nm torque motor has the muscle to get you going from a standing start up a steep incline
  • The classy Impulse bar mount computer has an easy to read LCD display so you can keep an eye on battery level, power mode, speed, trip distance and odometer
  • The 396Wh Impulse battery is capable of powering the motor up to 60km on mixed terrain and will be good for over 1,000 charge cycles
  • The battery fits neatly behind the frame seat tube
  • Walk mode comes in very handy if you ever have to push the bike - say up one of those bike ramps thoughtfully located beside stairs
  • In compliance with EU and UK law, this e-bike is a pedal bike with up to 250W power assist, which cuts out once you reach 25KPH (15.5 MPH)
  • This limiter doesn't prevent you going faster 'the old way' - by pedalling harder

Owning an electric bicycle - confessions of a fit young lad - see our best read blog.

The Bike Itself

  • The alloy frame and rigid fork are strong, lightweight and efficient
  • Magura hydraulic rim brakes offer the cable-free, low maintenance performance of hydraulic disc brakes in a more familiar rim brake format
  • The wheels roll on durable, puncture resistant Schwalbe Big Ben 20x2.25" tyres
  • The bike is fitted with colour-co-ordinated full mudguards and a chainguard to help you stay clean
  • It also comes with a rack to carry panniers
  • Then it's fitted with a heavy duty kickstand for easy parking when there's nowhere convenient to lean the bike
  • The front dynamo hub powers the high quality front and rear LED lights, so no light batteries to replace or recharge - ever
  • Unlike some dynamo systems, the lights have a standlight feature, so they stay on when you stop at the traffic lights
  • These lights are bolted onto the bike - the front at the fork crown and the rear on the back of the pannier rack - so you'll never be caught out without lights
  • The adjustable stem makes it easy to achieve the most comfortable bar height, plus it's easy to swivel in line with the bike

For even longer run times, see the otherwise identical 17Ah version

Why we introduced Kalkhoff bikes to our range - the blog

Commuter Bike Sizing Guide.

Bike sizing guide by brand.

See all Electric Bikes.

See all Commuter Hybrid Bikes.

Edinburgh Bicycle support recycling electrical equipment.

Technical Specifications

Kalkhoff Sahel Compact I8 2018 Compact 11AH 
FrameImpulse Compact V4, aluminium
ForkUrban Compact Urban
MotorImpulse 2.0, 36 V / 250 W, with shift sensor technology
DisplayImpulse Compact LCD, with control panel and walk assist
BatteryImpulse Li-Ion 36 V
BrakesMagura HS11, hydraulic rim brake
Chain guardImpulse, Revolver
Gear ShifterShimano Nexus
Crank setConcept 38t
Rear cog16t
HandlebarConcept EX Riser
StemConcept EX
SaddleConcept Trekking
Seat postConcept EX
Front hubShimano DH-C3000, hub dynamo, QR
Rear hubShimano Nexus, 8 speed
Wheel rimsConcept EX Kargo, with eyelets
Tyres20": Schwalbe Big Ben, 55-406 / 20x2.25"
HeadlightsAXA Blueline30, LED with stand light
Luggage carrierComfort, aluminium
Bike standrear stand
Mudguardsaluminium, painted
PedalUrban, foldable, with reflector
ChargerImpulse, 3A
Battery capacity11 Ah (396 Wh)
Weight- weighed in our Leeds shop March 2018Small Frame: 23.81kg/52.49lb


Our suppliers reserve the right to change specifications and prices without notice. Edinburgh Bicycle Cooperative will do all it can to maintain prices and specifications on this web site, however we do reserve the right to change specifications and prices without notice. Similarly, despite the wonders of modern computers, it is realistic to expect the colour of any item bought to differ subtly from the image online.