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Zone DPMX™ is the first wearable power meter for cyclists. It's attached to your shoes, not to your bike. Easy to move between bikes!
Zone DPMX™ is the first wearable power meter for cyclists. It's attached to your shoes, not to your bike. Easy to move between bikes!
Zone DPMX™ is the first wearable power meter for cyclists. It's attached to your shoes, not to your bike. Easy to move between bikes!
292 backers pledged €183,133 to help bring this project to life.

About this project

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The World's First Wearable Power Meter for Cyclists!

€183,133

292

Zone DPMX™ is the world's first wearable power meter for cyclists. 

From your training bike to your best bike to your static trainer, your power meter comes with you.

Zone DPMX measures your power (watts) and your cadence (rpm) as you ride, and sends the values wirelessly to your standard ANT+ bike computer for display and recording.    

Everything is on your shoes, and installation is as easy as fitting new cleats. There's nothing on the bike, not even a magnet, so you have your own power meter whatever bike you choose to ride. That means you get consistent power measurement and recording every time you ride. No more frustration because your power meter is on your other bike. No more wondering whether different power meters are calibrated the same.

  • Wearable - Nothing on the bike.
  • Portable - Comes with you on any bike you ride.
  • ANT+ - Use with standard ANT+ wireless bike computers.
  • Installation - As easy as fitting new cleats.
  • Affordable - Get value every time you ride, on any bike.

We've done all the research and development, we've done all the production preparation and planning, and now it's time to manufacture the first batch and deliver to you.

There are 2 versions of the power meter.

  • Zone DPMX Single measures power on your left shoe only (upgradable to dual in the future).
  • Zone DPMX Dual measures power on both shoes.

Do you wonder why you don't seem to be getting much better even though you ride long miles each week? There's a reason. Focused training will help, and for that you need to measure power.     

  • To perform better you must increase your power output. To increase power you must measure it.
  • Power measurement is proven to allow you to get more benefit in less training time.
  • Next to competition results, power measurement is the best objective measure of riding fitness and improvement. Measures such as heart rate are not enough.
  • Power measurement is scientifically recognised as a critical part of training to be a better bike rider.
  • Most cycling coaches recommend or even require their riders to use power meters.

Under your shoe, in your Speedplay® Zero cleat, the special sensor plate measures force, and on top of your shoe the pod measures motion. The pod uses all this to calculate power (watts) and cadence (rpm).    

If you have a Zone DPMX Dual then the pods on each shoe talk to each other to calculate the total power and the left/right balance. If you have a Zone DPMX Single then the pod doubles its power calculation to get your total power. The power and cadence are transmitted via ANT+ , and are picked up by your ANT+ bike computer or smartphone for display and recording.

Every movement of each of your shoe is measured by tiny motion sensors inside the pod. It recognises when you are pedalling and when you are not. Your shoe is locked to your pedal, so measuring movement of your shoe allows the pod to calculate movement of your pedal and crank. 100 times per second the pod knows exactly what angles your crank and pedal are at, and how quickly they are rotating and rocking back and forth.    

Watch the Zone DPMX Dual in action in the video, measuring power (watts), cadence (rpm) and left/right power balance (%). Values are sent wirelessly to a standard ANT+ bike computer for display and recording. You can see power and cadence reacting to the rider's efforts, and you can see power balance change when the rider unclips one shoe. Finally, you can see what happens when the Zone DPMX Dual is reduced to a Zone DPMX Single by removing one pod.  

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Someone asked us why we worked so hard on the Zone DPMX power meter, and we thought you might be interested in a few of the reasons we put in our list of "why?":    

  • Because we can make a better power meter. 
  • Because measuring power is about the rider, not the bike.
  • Because people told us it couldn’t be done. 
  • Because we know it can be done.
  • Because we believe in doing things right, whatever it takes.
  • Because it takes hard work to create simple results.
  • Because high technology products should “just work”.
  • Because great design looks simple.

Zone DPMX is available in two different versions: Single and Dual.    

Zone DPMX Single is fitted to your left shoe only, and measures power and cadence from your left foot. The power measured is automatically multiplied by 2 to give an estimate of the total power from both your feet. It is upgradable to the full dual-sided functionality. The upgrade is not yet available, but will be at some time in the future.

Zone DPMX Dual is fitted to both shoes. It measures total power, cadence, and left/right power balance to give you full accurate power measurement.    

Your Zone DPMX Single includes:    

  • A left side sensor plate & base. 
  • One pod. 
  • Charging dock, with room for two pods. 
  • USB wall charger, with international wall plugs. 
  • Torque screwdriver for correct tightening of cleat screws. 
  • Quick Start guide. 

Your Zone DPMX Dual includes:    

  • Two sensor plates & bases (left plus right). 
  • Two pods. 
  • Charging dock, with room for two pods. 
  • USB wall charger, with international wall plugs. 
  • Torque screwdriver for correct tightening of cleat screws. 
  • Quick Start guide. 

To use the Zone DPMX Single or the Zone DPMX Dual you must have the following:    

  • Speedplay® Zero pedals and cleats.
  • Shoes that have the standard 3-hole pattern for fixing cleats (Speedplay 4-hole pattern will not work).
  • Shoes that have at least one strap (shoes with only lacing will be difficult to fit).
  • An ANT+ compatible bike computer or smartphone that can receive and understand ANT+ power and cadence.

Installation is as simple as changing your cleats. When fitting your cleats to your shoes just use the Zone DPMX sensor plate instead of the Speedplay® black plastic adapter plate, and slide the Zone DPMX base onto your front shoe strap. You're done!    

It’s a simple swap – leave out the Speedplay adapter plates and use the Zone DPMX sensor plates instead. Moving the power meter to a new pair of shoes is just as easy.

We've put a lot of time and resources into getting the Zone DPMX to a finished design and preparing it for production, but we need your help to get it over the line and deliver it.    

Almost all the production tooling and samples are completed and tested. The electronic boards, the plastic enclosures, and the software are complete, and pre-production samples have been in test for more than a year. During that time a major focus of our work was on design improvements to the force sensor plate, and now we are working on some refinements to the production tooling and processes associated with that part of the power meter.

All product development and production preparation to date is fully paid for. Your contributions will be used to fund the final tooling adjustments, final production planning, and to manufacture your Zone DPMX power meter.

Risks and challenges

WHAT WE'VE COMPLETED

We've been working on this project for over 6 years, and we've been working with a manufacturing partner in Asia for the last 2 years. The manufacturer we are using has many years’ experience in electronic devices for sports measurement, and manufactures for well known brand names all over the world, including the USA. The moulding tools for the plastic parts have been completed, and production samples have been assembled and tested successfully. All electronic boards have been designed, and production samples have been in test for over a year without problems. The software is fully developed and has also been in continuous test for over a year.

For the last 12 months we have been refining and retesting the design of the force sensor plate that goes in your cleat. We are now awaiting full production samples of the main redesigned sensor parts, and starting to make changes to the moulding tool for an associated part.

WHAT REMAINS

The remaining risks and challenges are those that face any hardware project as it goes into mass production for the first time. For example, we could be delayed by late delivery of a part to the factory, or a fault in a part, or an error in the production process. It is also possible that tests of the production power meters will reveal performance issues that have not appeared in production samples. We've worked hard to ensure that issues like these will not occur, and we are confident enough to start production now.

Before it can be delivered the power meter requires some official approvals, for example from the FCC in USA. We do not yet have these approvals but the power meter has been designed with the help of engineers experienced in achieving them. We are confident that we will get the required approvals before the initial delivery dates, but it is still possible that delays in approvals could delay shipping.

USE OF CONTRIBUTION

All product development and production preparation work to date has been fully paid for, so none of the contributions from this campaign will be used for work that has already been completed. All contributions will be used to fund production of the batches offered as rewards.

PRODUCTION QUANTITIES

If our rewards are all taken during the campaign we will *not* increase our production batch sizes to provide more rewards. This will ensure that our initial production remains manageable. We may adjust Single/Dual reward balance within a batch, and we may offer extra rewards for later production dates.

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FAQ

  • It measures the forces between your shoe and the pedal, and calculates power based on that. The force sensors are in the cleat under each of your shoes, and the motion sensors are in small pods on top of each of your shoes. The power value (in watts) and the cadence value (in rpm) are transmitted wirelessly to any ANT+ compatible bike computer or smartphone, where they are displayed and recorded.

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  • Zone DPMX Single only measures power on your left foot. It doubles that measurement to get an estimate of your total power. Zone DPMX Single does not provide left/right power balance.
    Zone DPMX Dual measures power on your left and your right feet, so it is more accurate and is able to provide left/right power balance.

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  • The initial version is for use with Speedplay® Zero V2 cleats and pedals.

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  • No. It works with standard Speedplay® Zero pedals. All the sensors are in the cleats, attached to your shoe.

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  • Yes, it measures cadence using its motion sensors. It does not need a magnet or anything else fitted to your bike.

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  • Yes, the Zone DPMX dual measures left/right power balance. The single side version does not measure power balance.

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  • Yes. The Zone DPMX sends these values via ANT+, so if you have a bike computer or smartphone that can receive them then they can be displayed and recorded.

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  • Cycling dynamics is not part of the ANT+ standard, and therefore we can't transmit those values over ANT+. On its way to calculating power the Zone DPMX power meter makes lots of detailed measurements about the interaction between you and your pedals, but we don't transmit them. Some day we may make those measurements available, but not now.

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  • We have not yet tested with Speedplay X series cleats and pedals. They will fit mechanically, but we need to do more tests to make sure that accuracy is not affected. We will publish the test results when they are available.

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  • We have not yet tested with Speedplay Light Action cleats and pedals. They will fit mechanically, but we need to do more tests to make sure that accuracy is not affected. We will publish the test results when they are available.

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  • We have not yet tested with Pavé Zero pedals. They will fit mechanically, but we need to do more tests to make sure that accuracy is not affected. We will publish the test results when they are available.

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  • We have not yet tested with Speedplay Zero Aero Walkable cleats and pedals. They will fit mechanically, but we need to do more tests to make sure that accuracy is not affected. We will publish the test results when they are available.

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  • No. It works with any cycling shoe that has the standard 3-hole cleat fixing pattern on the sole, and at least one closing strap on the top of the shoe.

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  • No, it can't be used with shoes that have only the 4-hole pattern. Zone DPMX requires the standard 3-hole pattern.

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  • If the shoe has only a lacing system and no strap then no, the Zone DPMX will not work. If the shoe has at least one strap for fixing the small pod on top then yes, it will work.

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  • The Zone DPMX power meter can be removed from one pair of shoes and fitted to another. Fitting to the new shoes is exactly the same as a new installation. It is similar to moving a pair of Speedplay Zero cleats from one pair of shoes to another.

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  • No, the current version of Zone DPMX will not work with Speedplay extender plates.

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  • The Zone DPMX power meter is designed and tested to be compatible with the standard fitting of Speedplay Zero V2 cleats. We have not yet tested with flat or angled shims fitted so we can't state yet whether the accuracy is affected. When we complete those tests we will publish the results.

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  • The battery is rechargeable, and lasts up to 15 hours per charge.

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  • You just twist the pods off their mounts on your shoes, and twist them into the special USB charging dock.

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  • It takes less than 2 hours to completely recharge an empty battery.

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  • Yes. It's designed to withstand submerging down to 1 meter depth of water for 30 minutes (IP67), so it will take more than you can!

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  • Yes, the Zone DPMX works with any bike, any wheels, any groupset that you use your Speedplay Zero pedals on. It measures the forces applied to the pedals so the type of bike doesn't matter.

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  • Yes. It works with any bike that you use your Speedplay Zero pedals and cleats on.

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  • No. The power meter transmits its values wirelessly over ANT+ to any compatible display and/or recording device. You may already be using a compatible device for measuring heart rate, speed, cadence etc.

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  • It works with any bike computer or smartphone that is compatible with ANT+ power values. That includes devices from Garmin, Timex, Bontrager, O-Synce and Wahoo (for iPhone) as well as displays from other power meter companies that use ANT+. Use the ANT+ device directory to check compatibility.

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  • The initial version is only for ANT+. Future versions may include Bluetooth Smart compatibility, but the version offered in this campaign does not.

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  • Zone DPMX contains a wireless transmitter (ANT+) so it requires approvals and certifications. These are different in every country, and to get them requires going through expensive test procedures in each country. If you are in one of the countries not in our initial list for certification we apologise, and hopefully we'll get to your country soon.

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  • Replacing the Speedplay adapter plate with the Zone DPMX sensor plate increases the stack height by 2 mm. Some riders may want to compensate for this by raising their saddle height by 2mm. This is still a lower total stack height than most other pedal and cleat brands.

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  • We supply a special 2mm flat spacer in the box with your Zone DPMX Single. Insert the spacer on your right shoe between your cleat and your shoe to equalise the stack heights on both feet.

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Support this project

  1. Reward no longer available

    Pledge €390 or more About $440

    Zone DPMX SINGLE
    Super Early Bird Price (11% discount)

    Includes sensors for left side.
    Measures power and cadence from your left shoe.
    Upgradable to full dual-sided at a future date.

    Ships only to USA, Canada, EU/EFTA, Australia, New Zealand. You may have to pay taxes or duties for your country.

    Less
    Estimated delivery
    Ships to Only certain countries
    Reward no longer available 74 backers
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  2. Select this reward

    Pledge €390 or more About $440

    Zone DPMX SINGLE
    Early Bird Price (11% discount)

    Includes sensors for left side.
    Measures power and cadence from your left shoe.
    Upgradable to full dual-sided at a future date.

    Ships only to USA, Canada, EU/EFTA, Australia, New Zealand. You may have to pay taxes or duties for your country.

    Less
    Estimated delivery
    Ships to Only certain countries
    Limited 37 backers
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  3. Select this reward

    Pledge €780 or more About $881

    Zone DPMX DUAL
    Super Early Bird Price (11% discount)

    Includes sensors for left and right sides.
    Measures total power, cadence, and left/right power balance.

    Ships only to USA, Canada, EU/EFTA, Australia, New Zealand. You may have to pay taxes or duties for your country.

    Less
    Estimated delivery
    Ships to Only certain countries
    Limited 142 backers
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  4. Select this reward

    Pledge €780 or more About $881

    Zone DPMX DUAL
    Early Bird (11% discount)

    Includes sensors for left and right sides.
    Measures total power, cadence, and left/right power balance.

    Ships only to USA, Canada, EU/EFTA, Australia, New Zealand. You may have to pay taxes or duties for your country.

    Less
    Estimated delivery
    Ships to Only certain countries
    Limited 31 backers
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.

Funding period

- (30 days)