This only needs to be done once, but it does require the latest version of the Wahoo app.įor hard accelerations, however, the Snap falters a bit in the initial pickup. Thus, the advanced spindown must be completed by users to measure and calibrate for the unit's brake in order to get accurate readings. Wahoo CEO Chip Hawkins said the unit's algorithm for power measurement is based on the pilot batch of Snap trainers - and that subsequent batches of Snaps had a different factory configuration, something Wahoo only discovered after the fact. This is what the standard spindown measures and accounts for. One is the rolling resistance, which includes the tire and the flywheel's inertia. Turns out, the situation is a bit more complicated.įor the Snap to correctly measure power, two factors must be considered. In our initial review published 11 January 11 2016, we called the Snap’s power measurement lousy.
In initial testing, we found power measurement to be off by 40–80 watts, compared to reliable power meters, after completing Wahoo's spindown calibration. Wahoo exchanged the unit and the replacement did not have this issue. We'd see a reading for a few seconds, then 0, then a reading, then 0, etc.
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On the first test unit we had the power numbers kept dropping out every few seconds, regardless of software used. Average power for this section was 219 (Snap), 210 (Garmin) and 215 (Pioneer) Wahoo Kickr Snap power measurement When looking at a 13min section, the Snap (in boldface) catches much of the fluctuations. The Wahoo Fitness Kickr Snap is a smart resistance trainer that wirelessly connects with smartphones and computers for an interactive experience with third-party software such as Zwift or TrainerRoad.Īs the younger sibling of the original Kickr, the electromagnetic Snap offers a great road feel, smooth transitions between resistance levels and an easy set-up. Buy if: You want an easy-to-use smart trainer and don't want to shell out for the more expensive direct-drive models.Lows: Power measurement requires calibration to be accurate accelerations aren't measured quickly after coasting at a high power setting, pedaling at low rpms is very difficult.Highs: Great feel, controlled resistance with third-party apps such as TrainerRoad and Zwift easy set-up with 'snap' lever sturdy and stable construction quietest wheel-on smart trainer tested.Which smart trainers are compatible with Zwift, TrainerRoad and The Sufferfest? Wahoo Elemnt GPS computer challenges Garmin's supremacy Team Sky to use Wahoo Kickr power trainers
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