Polygon Impression AX - Electric Tandem Bike with Disc Brakes



Polygon Impression AX - Electric Tandem Bike with Disc Brakes


There are few better ways to share the enjoyment of cycling than with a Tandem. Tandem bikes are designed to be ridden with a captain in the front, and a stoker or passenger in the rear. The rider in the front controls the bike, leaving the rider in the rear, with nothing more to do than to assist with pedaling and enjoy the ride, in fact the rear rider needs hardly any balancing skills at all.

Key Features

  • Super light ALUTECH Alloy Tandem frame
  • Shimano ALTUS 24 Speed drive train
  • Tektro Mechanical Disc brakes
  • Adjustable reach alloy handlebar and stem
  • Super reliable eccentric bottom bracket

This aluminium framed tandem is light, in fact, its one of the lightest on the market. This makes it not only easy to ride, but also simple to put on any rear car rack. In fact, after taking the front wheel off the bike, it is not much longer than a regular adult mountain bike, and can be fitted to any regular car.

This iteration of the tandem has been significantly improved. The wheels are larger 27.5" rims and are the wheel of choice for tandem bikes. When you are carrying two passengers, the forces that go through the wheel are much higher and as such you need strong wheels to survive any impact with gutters or harsh, unforgiving roads. Larger 700c, "Road bike" wheels are inherently weaker and can result in warping or bending of the rim.

By having 27.5" wheels also allows for a lower standover height and in fact, this tandem can accommodate an incredible range of rider heights. Both riders benefit from adjustable stems and seat posts to ensure that both young and the young-at-heart will be comfortable on the bike.

The tyres have been upgraded to balloon tyres, these are much wider and more comfortable than traditional MTB or road tyres.

A great feature on this bike is the drivetrain. Featuring a 24 speed Shimano Altus groupset complete with huge 11-32 speed rear cassette, you have all the gears you need to tackle the steepest of ascents. The drive train also features an eccentric bottom bracket – this is the way the chain is tightened between the front and rear riders. Eccentric bottoms brackets are by far and away the best system in the market. Trying to use a tensioner system is messy and unreliable; an eccentric bottom bracket like this is the only way to keep that chain on.

As the name indicates, the tandem now features disc brakes too. This has been the most desired upgrade over previous rim brakes. Disc brakes provide confidence inspired braking with much more consistent, and powerful braking in all conditions.

FRAME  AL6 Alutech Aluminium Tandem, 10x135mm
FORK  Hi-Ten Steel Rigid Fork
HEADSET  Alloy Caged Bearing
STEM  Entity OE Alloy, 31.8mm
HANDLEBAR  Entity OE Alloy, 680mm width, 40mm rise, 31.8mm
REAR DERAILLEUR  Shimano RR-M310 Altus
SHIFTER  Shimano 3x8-Speed ST-TX800
BOTTOM BRACKET  Cartridge Sealed Bearing
CRANKSET  Prowheel MAA543 42/34/24T, 170mm
CASSETTE  Shimano Altus CS-HG31, 11-32T, 8-Speed
PEDALS Nylon Platform
BRAKES  Tektro MD-300, Mechanical Disc
WHEELSET  Alloy Double Wall Rims, Alloy Hubs
TIRE  Performance Tyre 27.5x2.10"
SADDLE  Entity Saddle
SEAT POST  Entity OE Alloy, 27.2x350mm



Motor: 48V 500Wh Rear Hub

Battery: 48V 15.5 Ah Lithium Battery

Other battery and motor options can be installed.

A mid drive Bafang conversion can be installed but we find most dual riders prefer the simplicity of the hub motor. Gear choice is crucial with mid drive motors and it can be tricky with two riders. If you are both experienced riders then a mid drive can be a good option but approx $1000 more expensive.

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