$2,545 pledged of $25,000 goal
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By Bluesight, LLC
$2,545 pledged of $25,000 goal
backers

About

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Power meter test bike:

Power meter on test bike
Power meter on test bike
3d Printing of Case
3d Printing of Case

Meter Assembly and Internals (2nd prototype):

Unit Assembly using 3D printer case
Unit Assembly using 3D printer case
Link and Connection with Edge500
Link and Connection with Edge500
Calibration with 920XT
Calibration with 920XT

Here is the power meter in action! First riding into a headwind then into a crosswind.  The data on the lower right is what is being reported by the Tempo power meter to the Edge500. Dashware was used to superimpose the data.

Product Status:

The Tempo power meter is a crank arm based power meter full of features and performance. Some of the notable features include: 

  • It already works! The unit is working and ready to go. There are full working prototypes that have been tested and used. See the video for the data output.
  • Ant+ compliant so it works with all head units, watches, and smartphones that are ANT+ capable.
  • Excellent battery life. Battery life is expected to be over 200 hours. Battery can be easily replaced by the user.
  • Cadence reading down to zero. Most other power meters must reach 20 rpm to begin registering. The Tempo reads down to zero.
  • User programmable slope. You can change the slope based on your riding style. You can calibrate it to your current power meter for a second bicycle. (Requires ANT+ USB stick)
  • Calibrated and temperature compensated sensors.
  • Simple user calibration procedure.
  • Battery level reporting with actual voltage measurements.
  • Professionally bonded strain gage sensors.
  • Over the air update enabled for software upgrades. (Requires ANT+ USB stick)
  • Designed, built, tested, manufactured and assembled in the USA.

As of now here is the current status of the project:

  • All electronic hardware design completed and tested. Factories have all designs and are on standby for production of hardware
  • All software written and is currently being Beta tested. Any inputs from the riders are being included in the updates. Software updates can be pushed to units at any time
  • Case design is 90% completed. The current units are all 3D printed and being optimized for robustness and water sealing. Once the case is optimized, hard tooling will begin
  • Lead times are governed by the availability of crank arms. Crank arms are expected to arrive June-July.

Funding is needed for inventory, housing tools, software licenses, and test fixtures. None of the funding is for development since the unit is already working.

FAQ:

  • What are the dimensions of the power meter?

          -The unit is 10.5mm (0.4 in) thick, 33mm wide (1.3 in), and 60mm (2.4 in) long.

  • Is the power meter going to be 3D printed or injection molded?  

          -The power meter case will be injection molded using high quality plastic. It will be resistant to impact and water. The 3D printed models shown are only for prototyping. The funding will be used to make the injection molded tools.

  • Can it measure cadence?

         -Yes! The meter can report cadence without the use of a magnet.

  • How is it attached to the crank arm?

          -The Tempo power meter is bonded to the arm using a high strength adhesive. There are no pockets or cuts made to the crank arm thus keeping is original structural integrity.

  • Are carbon crank arms available?

          -Not yet. Once the campaign is successfully funded, we are going to proceed and being to develop units that will work with carbon cranks arms.

Risks and challenges

There is a backorder on crank arms. That is why the timeline is set for July. Once funding is completed, the units will be delivered as crank arms become available.

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Questions about this project? Check out the FAQ

Support

  1. Select this reward

    Pledge $10 or more About $10

    Thank you for your support! We really appreciate it!

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  2. Select this reward

    Pledge $295 or more About $295

    If you'd like, send us your crankarm and we will install a power meter on it for you in the same production line as all the other units. If not, see below and we will supply a crank arm along with the meter. It can be installed on any crankarm on this page. If you don't see your crank arm, feel free to ask to verify if it is possible. Using your own crankarm will provide substantial savings! Shipping not included. Once funding is completed, the address will be provided for shipment of your arm to us.

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  3. Select this reward

    Pledge $299 or more About $299

    Super Early Bird Adopter. This is for those who want the very best deal! Get the Tempo Power meter at a very low introductory price and help kick off production. Please specify crank arm length , bottom bracket, and brand. The Shimano selections are Ultegra 6800, 105 5800, Ultegra 6700,105 5700, and XT M780/M785.The FSA selections include Energy. If you don't see your crank arm, feel free to ask to verify if it is available. Shipping not included.

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  4. Select this reward

    Pledge $325 or more About $325

    Early Bird Adopter. Get the Tempo Power meter at a very limited special price and help kick off our launch. Please specify crank arm length , bottom bracket, and brand. The Shimano selections are Ultegra 6800, 105 5800, Ultegra 6700,105 5700, and XT M780/M785.The FSA selections include Energy. If you don't see your crank arm, feel free to ask to verify if it is available. Shipping not included.

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  5. Select this reward

    Pledge $329 or more About $329

    Super Early Bird Adopter. This is for those who want the very best deal! Get the Tempo Power meter at a very low introductory price and help kick off production. Please specify crank arm length , bottom bracket, and brand. The Shimano selection is the Saint M820. If you don't see your crank arm, feel free to ask to verify if it is available. Shipping not included.

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  6. Select this reward

    Pledge $355 or more About $355

    Early Bird Adopter. Get the Tempo Power meter at a very limited special price and help kick off our launch. Please specify crank arm length , bottom bracket, and brand. The Shimano selection is the Saint M820. If you don't see your crank arm, feel free to ask to verify if it is available. Shipping not included.

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  7. Select this reward

    Pledge $359 or more About $359

    Super Early Bird Adopter. This is for those who want the very best deal! Get the Tempo Power meter at a very low introductory price and help kick off production. Please specify crank arm length , bottom bracket, and brand. The Shimano selection is the XTRM980 / M985, XTR M9000 / M9020, or Dura-Ace 9000. If you don't see your crank arm, feel free to ask to verify if it is available. Shipping not included.

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  8. Select this reward

    Pledge $385 or more About $385

    Early Bird Adopter. Get the Tempo Power meter at a very limited special price and help kick off our launch. Please specify crank arm length , bottom bracket, and brand. The Shimano selection is the XTRM980 / M985, XTR M9000 / M9020, or Dura-Ace 9000. If you don't see your crank arm, feel free to ask to verify if it is available. Shipping not included.

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  9. Select this reward

    Pledge $1,000 or more About $1,000

    Get the Tempo Power meter serial number 1! There will be one and only one unit that will have this serial number. Please specify crank arm length , bottom bracket, and brand. The available selections are any of the arms listed on this page. If you want to use your own crank arm, please verify with us to see if it is compatible.. Shipping not included.

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Funding period

- (60 days)