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The Montague Boston Ze folding bike with enhanced performance from a Zehus Bike + electric pedal assist system.The Boston Ze is a superb class leading full size folding bike with the patented Montague CLIX system, as used by the US Marines. 


The Zehus bike plus hub is a revolutionary electric motor pedal assist drive system for cycles.The Boston Zehus bike plus hub is at the very forefront of technology offering the simplest cleanest design of pedal assist cycle systems. It is ideal for people on the move who want to feel as if every ride is with a tail wind.



Zehus fit everything inside the hub body, it has a powerful brushless electric motor that complies with the ped-elec standard so no need for tax, insurance or a licence. Inbuilt sensors detect inclines and your pedal input. Smart technology lets you link to your mobile phone to change control settings. Weighing in at under 3kg gives it one of the highest energy/weight ratios on the market.

Bluetooth connectivity

The battery technology is of the highest order and quality giving 160WH capacity inside the hub. Bluetooth connectivity allows you to connect your smartphone to your hub. You can select the power mode, manage trip data, and even lock the bike to prevent it being ridden. You can access online diagnostics, bike orientated navigation, mobility stats and other functions such as help to find a stolen bike.

Bike + helps you when you need it and then recharges the battery when your input can deliver extra energy it also has variable regenerative braking action for more energy recovery. Bike + seamlessly optimises your efficiency whilst riding, decreasing your effort by up to 40% on an urban trip. Ridden in an efficient manner recharging is virtually eliminated.

The hub modular construction makes it fully serviceable and as there are no wires to tangle, snap or snag the bike is very easy to handle and store.


The Montague Boston Ze is a bike that does not suffer the usual flexability associated with the frame of folding bikes. The patented pivot and unbroken top tube impart a rigidity unparalleled in most folding designs. The full size wheels add to its speed, efficiency and ride quality.

Together the Zehus hub and the Boston combine to give an ultramodern, electric pedal assisted, full size and light weight folder with zero emission human synergy.




Q Most electric bikes I have compared are very heavy, 20kg - 25kg seems to be the norm – how much does the Boston Ze weigh?

A Incredibly, the Boston Ze weighs 13.6kgs, we haven’t gone as far as to say it is the lightest electric bicycle available, but currently we have found nothing as light.

Q Does the hub come with a charger and is it 240v compatible?

A Yes the hub comes with a 240 V compatible charger.

What happens if the hub is turned off – will it affect normal pedaling?  

You can ride the bike as normal with no electric assistance – it essentially becomes a lightweight, folding multi purpose bike.

How does the hub know when to kick in?

When does the hub provide assistance? Once you start to pedal above walking speed and make 3 rotations of the pedals backwards, the hub is activated. Depending how you set the application and along with feedback from the sensors in the hub, it will feed in power to assist you.

Can you charge the battery when it is only 60% discharged without harming it?

The unique way that the hub works means it is constantly in a charge/energy reclaim cycle. Recharging it at different states of charge will not harm it in any way

Will the battery hold charge if the bike is unused for a period of time?

Charge will slowly reduce as the bike is left unused. The speed of loss depends on the conditions of storage. There will be charge still in the hub after several months but before setting off after an extended period of nonuse it is wise to check the charge level using the app on your phone.

How long does it take to charge to full from empty? 

A About 3 to 4 hours.

How do I know how much power is remaining in the battery?

There is a battery indicator on the smart phone app.

Q Are there any accessories available for the Boston Ze?

Montague’s soft-sided bicycle carrying case, made of 420 Denier nylon, provides great protection at an affordable price. The carrying case features an inner pocket for the front wheel, a direct mount shoulder strap, two side handles, double-layered nylon bottom and the heaviest YKK zipper available. We also have front and rear quick release mudguard fittings for rapid transition of your Montague bike into folding mode and a lightweight folding pedal with a non slip grip and easy to use action.