Frequently Asked Questions

Find the answers to the most commonly asked questions

FAQ

Frequently Asked Questions

  • What is the added weight of a power meter shaft over a regular shaft?

    The added weight to the shaft is less than 100g. The majority of the weight is located at the centre of the shaft and for this reason the extra weight is difficult to detect. Many of our customers train and race with their power meters and don’t consider the added weight an issue.

  • Can I change the blades on a power meter shaft once they have been attached?

    Yes, you can use more than one blade set with the power meter. Whilst the shaft is cut to a specific length (which you specify), the shaft length has 5cm of adjustment. Different blades will vary in length somewhat, so the reassembled paddle may have a different overall paddle length, but this will not affect the performance of the product.

  • What are the International Canoe Federation rules for using a power meter in competition?

    Article 8.4 of Chapter 1 (General Regulations) of the 2015 International Canoe Federation 'Canoe Sprint Competition Rules' states the following with regard to using a power meter in a Canoe Sprint competition:

    'A boat or competitor may be equipped with a device which provides real time feedback on performance for use by television or event presentation. The device may be used by the competitor for analysis following a race but in no circumstances may the device be used to provide real time feedback to a competitor during a race.'

    With this being said, there is no mention of whether the use of 'a device which provides real time feedback' is not permitted in the disciplines of Canoe Slalom, Canoe Marathon or Canoe Ocean Racing.

  • How does the power meter measure power?

    Firstly, the power meter calculates the force applied to the paddle by the athlete's hands. The strain gauges in the power meter are located in an arrangement that allows the top (pushing) hand and the bottom (pulling) hand forces to be measured individually.

    Secondly, the power meter calculates the velocity at the hands by sampling rotational velocity and acceleration data from the IMU (Inertial Measurement Unit) located inside the shaft.

    Power is calculated by multiplying the force of each hand by the velocity of each hand.

  • What is the stiffness of the power meter shaft?

    The shafts are available in a number of different choices of stiffness. The options are listed below:

    EXTRA STIFF - 100% carbon high modulus, minimum flex (suitable for only the strongest 200m sprinters).
    STIFF - 100% carbon, low flex (suitable for flat water sprint).
    SOFT - 100% carbon, moderate flex (suitable for marathon, surf ski and multi-sport paddling).
    FLEXI SOFT - 70% carbon / 30% Kevlar, high flex (suitable for marathon, surf ski and multi-sport paddlers who prefer a very flexible shaft).

  • What import duty and sales taxes are due when I import the power meter?

    You may be charged import duty and sales tax by Customs in your country when you buy a power meter from outside New Zealand.

    The import duty is calculated as a percentage of the customs value of the goods. The customs value is made up of the price paid for the goods plus the shipping cost.

    The sales tax is calculated as a percentage of the customs value plus the import duty. Duty and sales tax are due at the time your goods are declared to Customs; this will normally happen soon after the goods arrive in your country. To find the import duty rate and sales tax for your country, simply click here.

  • I received an ANT+ USB stick with my Garmin watch. Can I use this to communicate with the power meter?

    Yes, the power meter is compatible with all USB ANT sticks including those from Garmin and Suunto.

  • Is the power meter compatible with the Garmin Forerunner 310XT?

    Yes, the Garmin Forerunner 310XT can display and record the 'Power' and 'Stroke-rate' metrics measured by the power meter. With this being said, the Garmin Forerunner 310XT does not support the 'Power Balance' metric (the percentage of power generate on the left stroke vs. the power generated on the right stroke).

  • What is the expected life span of the power meter's rechargable batteries?

    The expected cycle life of the batteries as per the battery datasheet is > 500 recharge cycles which equates to a minimum expected life span of 16.5 years based on paddling for an hour every single day. Should any battery require replacement, One Giant Leap have the necessary equipment to replace the batteries at our factory in New Zealand.