SWYTCH IN THE NEWS – “Swytch to unveil 70% smaller, 50% lighter conversion kit” [pedelecs.co.uk]

“One of the key learning points from our 2017 launch was that offering the lowest possible price needs to be balanced with being able to offer customers the high standard of customer care and the reliable, fast delivery that many customers have come to expect from market leaders like Amazon.”

Published on 29 August 2019

Behold, The Swytch ECO – all the Swytch goodness in a smaller package. By upgrading the battery technology and developing a custom-made, super-compact motor control PCB, we have managed to fit the same technology into a 70% smaller pack. It’s now “hand-held” and will fit on your palm!

We’ll be showcasing the Swytch ECO at Eurobike this year. Come find us in the Startup section for a test ride.

Image Credits: James Robinson

How much range will I get on my eBike?

Whether you’re riding a Swytch eBike, or another eBike, finding the answer goes something like this:

The range you get when riding your eBike depends significantly on the following factors:

  • What is the capacity of the battery?
  • What power level are you riding with?
  • How much leg power are you adding yourself?


The Short Answer

Whatever the range quoted on your eBike is, you can generally expect to get that full range based on pedalling medium-hard (hard but not hard enough to sweat), with the eBike in medium power mode.

This is the case for the Swytch eBike kit. The 50km system generally last 40-60km if you use it on medium power, and pedal a decent amount but not enough to make you sweat.

The Long Answer

The long answer is that we can’t really tell you exactly how much range you’ll get in miles, as there are so many factors to consider.

However, we CAN tell you your range in hours.

If you have an ECO Power Pack, and you use it at full power (250W) then it will last for about 45 minutes.

The Swytch PRO Power Pack has a 250Wh battery, this means that at max power it will last for about 1 hour.

If you use the kit at half power, and pedal as well, then you can still maintain a speed of 15mph, but it will last for 3 hours. Therefore you will get a range of about 45-50km.


What is the top speed?

The top speed of the Swytch Kit varies depending on the product you order, and the region you are in.

Both the 250W Universal and 250W Brompton Kits have a speed limit of 15mph for UK customers, 25km/h for European customers, and 20mph for US customers. We change the speed limit by editing the software installed in the Power Pack right after the manufacturing process is complete.

It is possible to change the top speed once you receive the kit, if you intend to use it for off-roading.

What Is My Wheel Size?

This is the most common question we get asked.

Firstly – don’t worry too much about the wheel size before ordering. We offer the kit in ANY size for ANY type of bike, and we can help you check your wheel size after you order. Once your order is in our system we’ll invite you to our order portal to confirm your specifications – such as wheel size.

Swytch wheel sizes correspond with the ETRTO (ISO) wheel size measurement standard.

Note: Most adult bicycles (except folding bikes) have a standard ETRTO 622 wheel (28″/29″/700C)
In the meantime, if you want to work out for yourself what your ETRTO wheel size is, here’s how you can:

Option 1: Ask the bike seller

If bought online: Check the bike details on the retailer’s website, there will be a “specifications” section which should list the specific ETRTO wheel size.

If bought in-store: The ETRTO wheel size is often in the specifications manual that came with the bike, otherwise, the seller can tell you.

Option 2: Check tyre markings

Most bikes have the ETRTO wheel size marked on the side of the tyre.

The images below summarise where to find the ETRTO, French version and English version tyre markings.  Swytch Wheel sizes match the last three digits of the ETRTO marking. Using the picture below, the ETRTO marking 47-622 means that the 622 Swytch Wheel would fit this tyre. ETRTO markings always take the form of ##-###.  Once you find the ETRTO marking, you can use the table below to match it to the Swytch Wheel size.

My tyre only has English or French markings, what size wheel do I need?

If you can not find any markings on the side of your tyre, then the next option is to measure it yourself.

Option 3: Measure yourself

A final option is to measure the diameter of the rim in mm, which is the approximate equivalent of ETRTO:

1) Place the tape from the centre of the wheel to the tyre’s inner edge where it meets with the rim. Take down this measurement in mm. This is the inner radius of the tyre (R). [E.g. 317mm]

2) Multiple R by 2. You now have the diameter of the rim. [E.g. 317*2 = 634mm]
3) Subtract 10mm from the diameter. [E.g. 634-10 = 624mm]
4) Match your measurement with the Swytch Wheel size table above, it should come within ±3mm [E.g. 624mm = 622 Swytch Wheel]
A marking on the side of the tyre is a more accurate and easier way of finding out your wheel size and should be used whenever possible.

Not Sure? Contact Us

If you are unsure you can open a support ticket here: https://swytchbike.zendesk.com/hc/en-gb/requests/new

Haven’t Registered Yet?

If you are interested in placing a pre-order and aren’t already on the waitlist, make sure to register to here: https://www.swytchbike.com/p/universal-ebike-conversion-kit/

Swytch in the News: “Easy-fit kit that will turbo-charge any bike” [Cyclist.co.uk]

“Overall the Swytch system is versatile, its ease of installation is excellent, and the parts are of sound quality.”

Read the full article here

Published on 15th Feburary 2019

Joseph Delves didn’t expect his dumpster-found Hercules Balmoral to be up for an electrical rebirth. To his surprise, this bike proved to be an ideal suitor for the Swytch Kit’s easy-fitting components.

This brings to mind all the dust covered bikes sitting about in sheds waiting to be resurrected, just like Frankenstein, into eco-friendly grocery-getters and hill-smashers.

Will it fit my bike?

There are 2 types of Swytch Kits: Universal and Brompton. 95% of all bikes on the market can be fitted with at least one of these Kits – if you’d like to find out which kit will fit best on your bike, don’t hesitate to email us at support@swytchbike.com. Let us know your bike model, send us a couple pictures, and our support team will guide you through picking the ideal Swytch Kit for your bicycle.

It doesn’t matter how peculiar your bike is – the Swytch Kit even works on a Penny Farthing!
So long as your bike has 9.5 cm of space at the centre of your handlebars, you should have no trouble with Making The Swytch.
Nevertheless, there are 2 key features that are not compatible with the Swytch Kit: Hub brakes, and through axles.
Other than that, our conversion kit is pretty versatile.

Do you sell my wheel size?

We supply 28″, 26″, and 16″ wheels in bulk, as these are the most common wheel sizes. For other sizes between 14″ and 29″ (24″ to 29″ for the High Power Kit), we’ll build you a bespoke wheel fitted with our hub motor. This costs a little extra to pay our great engineers, but on the plus side we can make your wheel in a couple extra colours to blend in with your bike!

Check out our “What is my wheel size?” post in the tech blog for assistance in deducing the wheel size on your bike.

What Brakes does it work with?
The Swytch Kit is fully compatible with cable, hydraulic, and disc brakes.
It is not compatible with hub brakes, as this space is taken up by our hub motor.

The hub motor on the Swytch Kit will take up the space usually occupied by a dynamo, so hub dynamos are not compatible with the Swytch Kit. But don’t worry, so long as you are willing to lose the dynamo, the Swytch Kit will still work with your bike as normal.

Using a Dynamo to power your lights? No problem! Our PRO power pack comes with a 200 lumen light, and all packs come with clips to attach lights to.

Folding Bikes
The most common questions regarding The Swytch Kit and folding bikes are:

Will my bike still fold with the Swytch Kit?
Yes! If you’re mounting the power pack on your handlebars, you will need to detach it, but so long as you’re clever with where you secure the wires, your bike will fold with ease! If you need help, you can book a video support call with us. Email support@swytchbike.com to arrange your booking.
If you have a Brompton, you can now attach your handlebar bracket in the Brompton Bag position, which means the power pack can remain attached when folding!

Will it fit on my Brompton Handlebars?
Yes! S, M, P, H, T-bar, you name it. All Brompton handlebars have got the necessary space in the centre for the Swytch handlebar bracket to fit nicely. Over 1000 Brompton customers have already Made The Swytch, so we know what we’re talking about!

Will it fit on my Dahon or Tern?

Dahons and Terns have 74mm dropout widths (same as Brompton), and 20″ wheels.

Order our Brompton Kit with the “custom wheel build option”, and we’ll be able to supply you with a bespoke 20″ motor wheel to go on your bike.

Weird Bikes
Got a recumbent bike? A tandem? Something weirder? We’ll have a section on this soon, but for now get in touch with us at support@swytchbike.com and we’ll show you how you can Make The Swytch.

Specification – Performance, Dimensions, and Electronics

Hey there! We’re still working on this page as part of our new site release. If you have any questions left unanswered please contact us at support@swytchbike.com!


The Swytch Kit performs at the same level as an eBike worth upwards of £2000! Allow us to elaborate:

Battery Range

Motor Power and Top Speed

Weight Bearing

Maximum Gradient

Steering and Efficiency


Our focus with the Swytch Bike was to make the whole system as light and easy to use as possible.


These values are for the weight of the ENTIRE conversion kit – power pack, motor, wires and all.


ECO and PRO are the same physical size

1st Gen & TOUR Kits
25 mile: 4.5 kg
50 mile: 5.5 kg


The Swytch Kit has a variety of intelligent electrical/electronic features.

Swytch Power Pack Functions

Sign Up Now With 50% Off

New stock available to preorder soon

Sign up now for 50% discount

Please enter a real email address

Nice one. You're Subscribed.

Be First.

Want to ensure you get first access to the 50% discount when we launch?

Sign up to get a push notification direct to your mobile the minute our next sales campaign goes live.

Nice one. You're Subscribed

You have subscribed for email and push nofications when we launch.

Order in the first 24 hours to get 50% discount.

Follow us on social media?

Get the latest updates in the build up to our product launch