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Agattu Advance i8

  • Frame type


  • Powered by Kalkhoff's Impulse Evo drive

  • 36V  iNext 17,5 Ah(621 Wh) Li-Ion battery

  • Smart Compact Display with navigation app

  • Shimano Nexus 8 speed hub gears

  • Hydraulic Magura HS11 rim brakes

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The Agattu Premium has been one of our best sellers for many years and for good reason, now Agattu Advanced with a new name this perfect all-around electric bike returns with more power. Now with the Evo Next Drive, improved controls, longer range and better performance. Hills, tracks, trails and national parks handle just as well as cycle paths, busy roads and parks in the city. It's powered by the Evo centre motor and a 36 volt 17.5 Ah battery that gives up to 125 miles range. It's superbly well-equipped with Magura hydraulic brakes, front and rear lights, new illuminated handlebar controls, puncture-resistant tyres, integrated mudguards and suspension.

Evo Drive Providing an enormous 80Nm torque and working with the gear shifter to provide seamless transmission it's the most capable crank drive unit around. Kalkhoff has engineered a more powerful, efficient, quieter motor that supplies massive assistance from a standing start and cuts all hills down to size.

Climb Assist is another clever feature Kalkhoff's engineers have baked into Evo Drive maintains assistance even after the hill starts to level out as you reach the top. It's a nice touch that makes for happier hill-climbing and unique to Kalkhoff. 

A whole series of improvements are a testimony to our commitment to remaining one decisive idea ahead.

  • Background noise reduced by 20%
  • The lighting system is supplied via the motor
  • Quicker data transmission thanks to CAN Bus communication system

Shift Assist is a genuine innovation - 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 little 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.

Magura hydraulic brakes Magura's hydraulic piston design makes braking easy, well-modulated and reliable over time. There are no cables to stretch, the whole surface of the brake pad is applied to the rim (protecting both), pads last for ages and braking is strong and sure-footed. Looks cool too, with a strong arch and neat braking assembly tucked against the forks.


Control Unit E-bile handling made easy, The ergonomically designed control panel offers you full control of the Impulse Evo electric drive.

The optimised design and elegant backlighting guarantee safe operation of the functions and displays without having to take your hands off the handlebars.


Impulse Evo Compact display the new displays is Compact Communicative and Stylish,  all the important information is easily available, such as speed, and remaining range very clearly and also has Bluetooth connectivity and a USB charging socket to allow for connection to a smartphone for use of the Impulse Evo navigation app which transforms the display into a navigation system.

The following functions are available:

Assist level
Battery charge state
Trip distance
Total distance 

Connection to your smartphone is established via the Bluetooth module, while the USB charging socket fitted as standard enables you to charge your phone while you’re on the move.

The Impulse software, which is as intelligent as it is easy to use, provides maps of Europe as well as a comprehensive a range of functions:

"Start-Destination" route calculation based on your bike's current battery capacity
Route calculation "Plan a route around my location"
Save your own routes and use Naviki routes
Interesting waypoints (hotels, restaurants, specialist dealers)
Automatic mapping of the actual route taken
Synchronisation of all routes with your Naviki user account
Comprehensive editing and display options

Front and rear lights Powered from the battery, the lights on this and all Kalkhoff bikes are excellent. Few bikes on sale in the UK benefit from front and rear illumination of this quality and utility. 

The Herrmans H-Black MR8, extremely bright LED light forward light, enough to make night rides across the park something to enjoy rather than endure.

Other winning features

  • Multifunction LCD console - Speed, Charge, Assistance Level, Total Miles, Trip Miles
  • Handlebar-mounted control - illuminated with Walk Assist button, on/off, power controls and options.
  • Adjustable alloy forks
  • High-end Nexus 7-speed gears
  • 621 Wh Lithium tri-metal battery
  • Schwalbe Energizer Puncture-Resistant Tyres

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Technical Specifications

Frame  Impulse Evo next, aluminium
Engine    Impulse Evo, 36 V / 250 W, with shift sensor Technology
Display    Impulse Evo Smart Compact, with Bluetooth and USB charging socket
Battery    iNext Li-Ion 36 V, 17,5 Ah (621 Wh)
Charger    Impulse, 3A
Gear System    Shimano Nexus, 8-speed
Shifter    Shimano Nexus
Crankset    Concept
Sprocket    Shimano
Chain guard  Next, Revolver
Gear ratio  front: 38, rear: 18
Front hub  Shimano Alivio, QR
Rear hub  Shimano Nexus, 8 speed
Pedal  Comfort aluminium, with anti slip protection and reflector
Brakes    Magura HS11, hydraulic rim brake
Stem    Concept SL, adjustable
Handlebar    Concept EX Metro style
Stear grips    Ergon GC10
Saddle    Selle Bassano Feel GT
Seatpost    Patent MCU, suspension
Pedals    Comfort aluminium, with anti-slip protection and reflector
Wheel rims  Concept, with eyelets
Tyres  26": Schwalbe Marathon, 47-559; 28": Schwalbe Marathon, 40-622
Headlights  Herrmans H-Black MR8, LED
Mudguard    plastic, with edge protector
Luggage carrier  Racktime system, tour
Kickstand    rear stand
Lock    AXA Defender, removable key
Maximum total weight    130 kg / 20.5 Stone
Weight 24.5kgs
Range  90 miles; 125miles
Colour    lime green glossy


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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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