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Kalkhoff Pro Connect i8 2017 Step-Through


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Product Details

Kalkhoff Pro Connect I8 2017 Step-Through

Buy the Pro Connect I8 confident in the knowledge that Kalkhoff have sold over 200,000 e-bikes featuring its German engineered 70Nm torque Impulse 2 motor drive.

Impulse 2 power-assist
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 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.
  • The battery is neatly integrated behind the frame seat tube.
  • 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.
  • 70Nm torque
  • 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 11ah Impulse battery delivers up to 135km power assist in eco mode per charge.
  • The Impulse battery will be good for over 1,000 charge cycles.

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

The Bike Itself

The bike itself is an especially clean take on the Euro trekking bike theme. That is, its a fully equipped commuter/hybrid bike equally at home on smooth roads or rough tracks.

  • Quality hydraulic disc brakes - why you want them.
  • Rolls on durable, puncture resistant Schwalbe 700x38 tyres.
  • Fitted with full mudguards, pannier rack, chainguard and kickstand.
  • The front dynamo hub powers the high quality front and rear LED lights, so no light batteries to replace or recharge on this bike, ever.
  • Unlike some dynamo systems, the lights have a standlight feature, so they stay on when you stop at the traffic lights.
  • Smooth-shifting Shimano 8 speed gears.

Commuter Bike Sizing Guide.

Bike sizing guide by brand.

Edinburgh Bicycle support recycling electrical equipment.

Technical Specifications

Kalkhoff Pro Connect I8 2017 Step-Through 
FrameImpulse V2 Aluminium
ForkSR Suntour NEX
EngineImpulse 2.0, 36 V / 250 W with Shift-Sensor Technology
DisplayImpulse Compact LCD with cntrol panel and walk assist
BatteryImpulse Li-Ion 36 V / 11Ah (396Wh)
BrakesTektro HD-T285 hydraulic disc
Rear derailleurShimano Altus
ShifterShimano Altus
CranksetConcept 38t
CassetteShimano 11-32
HandlebarConcept Riser
StemConcept SL adjustable rise
SaddleConcept Trekking
SeatpostConcept SL
HubsShimano DH-3D32 dynamo front hub. Shimano rear
TyresSchwalbe Energizer Life 40-622 (700x38)
HeadlightAXA Blueline 30, LED with standlight
CarrierTour aluminium


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.