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Kalkhoff Integrale Excite i8 2018 Women's Electric Bike


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Product Details

Kalkhoff Integrale Excite I8 2018 Women's E-Bike

From its long range 603Wh battery to its Alfine 8-speed hub gearing with Gates belt drive, you can see why we're excited to offer this Kalkhoff Integrale women's e-bike.

Enclosing the battery inside the downtube creates such a normal-looking bike, there's a good chance that cyclists you overtake won't even realise you're riding with the assistance of an Impulse Evo RS, 36 V / 250 W motor.

Impulse power-assist motor
Kalkhoff have sold over 400,000 e-bikes powered by German engineered Impulse motors and batteries.

This is a 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 Evo RS motor 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 Evo Smart 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
  • New for 2018, the Impulse Evo Smart computer can be bluetooth connected to your smart phone's navigation app
  • The 603Wh Impulse battery is perfect for rides up to around 100km on mixed terrain and will be good for over 1,000 charge cycles (so it will last twice as long as many e-bike batteries)
  • Walk mode comes in very handy if you ever have to push the bike - say up one of those bike ramp/gutters sometimes 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

Gates Belt Drive
The advantages of a belt drive transmission are compelling. The carbon fibre-reinforced rubber belt lasts 15,000 to 20,000km. That's around twice as long as a steel chain. it's much lighter, it won't stretch and will never rust so you will never need to lube it. The absence of oil means the belt doesn't attract dirt the way that even a well-maintained steel chain might.

Gates (who have been based in Colorado for over 100 years and who also manufacture in Dumfries, Scotland) are the world leaders in timing belts for cars. They worked in close collaboration with Wayne Lumpkin (founder of Avid brakes) in the development of their Belt Drive system. You can be confident that this technology has been precision tested.

Shimano 8-Speed Hub Gears
A Belt Drive transmission can't be derailled. If you are looking for a multi-geared belt drive bike you need a hub gear transmission. Here, Kalkhoff spec the tried and tested Shimano Alfine 8-speed hub and trigger shifter.

Alfine offers all the benefits of Shimano Nexus 8 explained in our blog. Then it's improved with better seals and needle bearings for improved performance.

The Bike Itself

The bike itself is an especially clean take on the Euro trekking bike theme. That is, it's a fully equipped commuter/hybrid bike equally at home on smooth roads or rough tracks - albeit with a 250 Watt motor to ease the strain of riding uphill and into headwinds.

  • Svelte aluminium alloy frame
  • RST air-sprung 80mm travel suspension forks help smooth bumpy roads and tracks
  • The front 15mm through axle borrows the best MTB technology to create a more solid and secure interface between front wheel and fork
  • Shimano Alfine 8-speed internal hub gears are intrinsically cleaner, lower maintenance and longer lasting than derailleur systems
  • Quality hydraulic disc brakes - why you want them
  • The wheels roll on durable, puncture resistant Schwalbe 700x50 tyres
  • The bike is fitted with full mudguards and 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 high quality front and rear LED lights are powered by the main battery (like a car's lights)

Women's Bike Sizing Guide

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Technical Specifications

Kalkhoff Integrale Excite i8 Women's 2018  
FrameImpulse Evo RS V1, aluminium
MotorImpulse Evo RS, 36 V / 250 W, with shift sensor Technology
DisplayImpulse Evo Smart Compact, with bluetooth and USB charging socket
BatteryImpulse Evo Li-Ion 36 V
BrakesShimano M396, hydraulic disc brake
Gear ShifterShimano Alfine
Crank setConcept 46t
Rear cog22t
HandlebarConcept EX Riser; Concept EX Ergo Riser
StemConcept EX Integrale
SaddleConcept EX
Seat postConcept EX
Front hubShimano Deore M6010, 15x100 mm thru axle
Rear hubShimano Alfine, 8-speed
Wheel rimsDT Swiss 545D, with eyelets
TyresSchwalbe Big Ben, 50-622
HeadlightsConcept EX Twin, 100 Lux, LED
Luggage carrierRacktime System Carrier Light, with integrated rear light
Bike standrear kickstand
Protective guardaluminium, painted
PedalUrban, with anti slip protection and reflector
ChargerImpulse, 4A
Battery capacity17 Ah (603 Wh)
Manufacturer's published maximum range205 km (based on easiest, no wind, no hills conditions).
100km in mixed conditions is possibly more realistic
Weight- weighed in our Bruntsfield shop March 2018Small Frame: 26.48kg/58.38lb


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.