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since 2003

Sports E-bikes

Kalkhoff Pro Connect 9G

  • Frame type


  • Powered by Kalkhoff's Impulse 2.0 drive

  • 36V 15Ah high capacity Lithium ion battery

  • Shimano hydraulic disc brakes, 9-speed gears

  • Lights, luggage rack, mudguards, suspension, kickstand

  • Schwalbe Energizer Life tyres

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The Pro Connect has been a best seller for many years and for good reason. This years 9 speed model is powered by Kalkhoffs Impulse 2.0 centre motor and a 36 volt 15Ah battery that gives up to 90 miles range. It's superbly well-equipped with Shimano Alivio gears, Shimano hydraulic disc brakes, front and rear lights, new illuminated handlebar controls, puncture-resistant tyres, integrated mudguards and suspension.

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 - 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.

Shimano hydraulic brakes

It's been some years since Kalkhoff dropped cable-pull brakes on their most popular models. The Shimano Acera M396 disc brake boasts an efficient design to ensure powerful and controllable braking. It features a fully hydraulic 2-piston unit with automatic pad adjustment, aluminium levers, and resin pads that complement braking power. Also, rather than using hydraulic fluid it uses Shimano mineral oil for better performance and safety.

Front and rear lights

Powered by a free-running Shimano hub dynamo, the lights on this and all Kalkhoffs are excellent. Few bikes on sale in the UK benefit from front and rear illumination of this quality and utility. Both the front and rear lamps will remain lit for several minutes at standstill, for added visibility when waiting at lights or junctions.

The front lamp casts 30 lux of cool, bright LED light forward, enough to make night rides across the park something to enjoy rather than endure.

Other winning features

  • Compact 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.
  • Suntour NEX alloy forks
  • Shimano Alivio 9-speed derailleur gears
  • 540 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.
  • Schwalbe Energizer Life puncture resistant tyres, especially made for E-Bikes.

Ratings and Reviews

I can't begin to describe how happy I am :)

by from Derbyshire on

Pedelec is great, really pleased with it. German engineering at its very best, really well made, everything about it oozes quality. Handover was good when I collected it, all checked over and set up and helpful hints and tips on battery etc. I have various digestive issues which means I can't eat enough to maintain my weight if I burn off too many calories on long bike rides on a standard bike. So this is going to be a life changer for me, can't begin to describe how happy I am :)

One of the best buys I have ever made.

by from Northamptonshire on

I decided to treat myself to an e bike for my 70th birthday earlier this year.hitherto I had been riding a Giant Cypress XL, for my weekly outing of 20-30 miles. Initially I visited both the London Cycling Exhibition and a local Cube supplier until I was told about 50 Cycles in Loughborough. A visit to them and an hours trial on the Pro Connect Impulse 9 convinced me this was the bike for me.

The bike is a delight to look at and a pleasure to ride. It arrived at my home 4 days after I placed the order and With some help from a friend, it was soon set up and ready to ride. Having taken some banter about being a "cheat", in fact I am now getting more exercise , regularly going out 3 times a week. In 2 months I have done over 600 miles. I live in a fairly hilly area and a 30 miles ride uses less than half the battery. I use Eco for gradients and hills, maybe occasionally Sport, and Off for flat and downhills. No more heart sinking moments at the bottom of a steep climb!

I had a couple of minor issues which 50 Cycles dealt with efficiently, when I returned the bike for a check over. In particular they explained how to zero the tripometer which I couldn't fathom, and also showed me how to fit the battery correctly which I had struggled with. I cannot praise the staff at Loughborough highly enough.All in all this is one of the best buys I have ever made.

Chain for Pro Connect 9G

by from Pembs on

At 1600 miles the chain expired due to 3 cracked side links. This seemed a rather short life for a chain and I was disinclined to spend £22 on a similar replacement from Kalkhoff. I have fitted Shimano Hyperglide 9 speed. You have to buy two chains as the standard chain is too short for this machine and requires 8 links to be added, but the chains are half the price. The result is a greatly improved gear change and, so far (1800miles) no down side. I have my donor chain, for extra links , stored safely, for the next chain renewal time. The rest of the bike works perfectly except that the battery can go to sleep if not used every week and requires a wake-up call by re-charging. This can be annoying but I now switch the bike on and off when passing which seems to minimise the problem. Still a great buy!

My First Electric Bike and Not Dissapointed

by from Jersey on

I've ben toying with the idea of an electric bike for some time now as my back is giving up and I was finding it difficult to keep up with the family. I had researched many of the bikes on the market and some were really heavy and some were conversion types so not specifically built for the electric purpose.

I popped into the Bristol 50 Cycles shop when visiting my son earlier this month and was impressed firstly by the helpfulness of the staff and then by the quality of the Kalkoff product. I had looked at Kalkoff on line but not been able to actually inspect one until now. I didn't place an order straight away but did so more or less as soon as I got back home. Again the staff couldn't have been more helpful and arranged delivery to Jersey a few days later.

Having now made a few of trips out on my Pro Connect it is excellent. The ride without power is smooth and with power is better than I had hoped for. Brilliant and the many hills here no longer phase me. The build quality, as you would expect for the money, seems first class and there is even a pump discretely hidden on the inside of the pannier rack. First impressions are excellent and thanks to Anthony Douglas and Harry Gyurgyak at 50 Cycles, Bristol for all the help.

Technical Specifications

Frame Impulse V2, alloy
Fork Suntour NEX, alloy, adjustable
Motor Impulse II Pedelec 36 V / 250 W, with Shift-Sensor technology
Battery Impulse Li-Ion 36V / 15Ah
Display Impulse Compact LCD
Gears 9-speed Shimano Alivio
Shifters Shimano Alivio
Ratios front: 38, rear: 11-34
Crank Kalkhoff Impulse, alloy
Handlebar Concept EX Riser
Stem Concept SL
Saddle Concept SL Trekking
Seatpost Concept EX
Brakes Shimano M396, hydraulic disc brake
Tyres Schwalbe Energizer Life, 40-622
Mudguards Plastic with edge protector
Rack Tour 3-leg, alloy
Headlight AXA Blueline, 30 Lux LED with parking light
Backlight Trelock LS 613, with parking light
Colour Crossbar: Matt Black. Trapezoid: Snow White.


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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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