Facebook Instagram Twitter Youtube
  • Get Started
    • Create Zwift Account
    • How To Get Started On Zwift
    • Zwift Course Maps
    • How to Race on Zwift (Setup, Strategy, and More)
    • Women’s Racing on Zwift
    • Links Every Zwifter Must Have
    • More “Get Started” Posts
  • Tips & Tricks
    • Training & Nutrition
    • Racing
    • Zwift Hacks
  • Reference
    • How Zwift Works
    • Course Calendar
    • RoboPacer Calendar
    • Climb Portal Calendar
    • Upcoming Events
    • Game Updates
    • Smart Trainer Index
      • Current Models
      • Exhaustive Trainer List
    • Achievements & Unlocks
      • XP Basics for Riders
      • XP Basics for Runners
      • Kit Unlock Codes
      • Master List of Badges
    • Frames & Wheels
    • Routes & Maps
      • Master List: Routes
      • Master List: Climb Portal
      • Master List: KOMs
      • Master List: Sprints
      • Master List: Rebel Routes
      • Downloadable Watopia Map
      • Printable List of Routes by Difficulty
    • Speed Tests
    • Tiny Races
  • Women
    • Race Calendar
    • Why race?
    • Women’s Teams
    • Racer Spotlights
    • More Women’s Racing posts
  • Shop
    • Watopia Map and Other Posters
    • ZI Indoor Cycling Kit
Search
Logo
Logo
  • Get Started
    • Create Zwift Account
    • How To Get Started On Zwift
    • Zwift Course Maps
    • How to Race on Zwift (Setup, Strategy, and More)
    • Women’s Racing on Zwift
    • Links Every Zwifter Must Have
    • More “Get Started” Posts
  • Tips & Tricks
    • Training & Nutrition
    • Racing
    • Zwift Hacks
  • Reference
    • How Zwift Works
    • Course Calendar
    • RoboPacer Calendar
    • Climb Portal Calendar
    • Upcoming Events
    • Game Updates
    • Smart Trainer Index
      • Current Models
      • Exhaustive Trainer List
    • Achievements & Unlocks
      • XP Basics for Riders
      • XP Basics for Runners
      • Kit Unlock Codes
      • Master List of Badges
    • Frames & Wheels
    • Routes & Maps
      • Master List: Routes
      • Master List: Climb Portal
      • Master List: KOMs
      • Master List: Sprints
      • Master List: Rebel Routes
      • Downloadable Watopia Map
      • Printable List of Routes by Difficulty
    • Speed Tests
    • Tiny Races
  • Women
    • Race Calendar
    • Why race?
    • Women’s Teams
    • Racer Spotlights
    • More Women’s Racing posts
  • Shop
    • Watopia Map and Other Posters
    • ZI Indoor Cycling Kit
More
    TrainersZwift Hacks

    Why Are Tacx Trainers Suddenly Boosting Your Power? (And How to Fix It)

    Jesper Rosenlund Nielsen
    By Jesper Rosenlund Nielsen
    March 22, 2021
    LAST UPDATED March 22, 2021
    5

    With the update Wednesday to game version 1.0.64913 many – like really many – have suddenly experienced crazy power numbers when using one of these trainers:

    • Tacx Boost
    • Tacx Booster
    • Tacx Blue Matic
    • Tacx Blue Motion

    The problem is not with your speed sensor, nor the trainer itself. Rather, Zwift has introduced a bug. It changed the power curves for these trainers which is defined in-game and used to translate speed to power.

    We’ll have to wait for Zwift to fix it for real but in the meantime you can get riding with realistic numbers simply by selecting a different trainer model from the list in the pairing screen.

    I dug into the defined power curves and found what seem to be fairly close matches:

    • Choose Jetblack M5 Mag Pro instead of Tacx Boost
    • Choose Tacx Blue Twist instead of Tacx Booster
    • Choose Jetblack M5 Mag Pro instead of Tacx Blue Matic
    • Choose Minoura MagRide-60 instead Tacx Blue Motion

    Simply choose the alternative trainer instead of your Tacx when pairing. But let the trainer resistance setting be the same as always for your Tacx – simply ignore what Zwift says it should be for the alternative trainer.

    Here are the power curves so you can see how they compare. The graphs show power (watts) as a function of speed (mph) – how much power Zwift calculates you are putting into the pedals based on the speed of your rear wheel:

    Tacx Boost vs. JetBlack M5 Mag Pro

    Tacx Booster vs. Tacx Blue Twist

    Tacx Blue Matic vs. Jetblack M5 Mag Pro

    Tacx Blue Motion vs. Minoura MagRide-60

    Editor’s note: those article was originally published on ZwiftHacks. It is reprinted here by permission.

    Related Posts

    Facebook
    Twitter
    Pinterest
    ReddIt
      Jesper Rosenlund Nielsen
      Jesper Rosenlund Nielsenhttps://zwiftHacks.com
      Jesper lives in Vejle, Denmark and has been zwifting since 2015. He rides with World Social Riders whenever possible and also runs ZwiftHacks, the home of ZwiftMap, ZwiftPref, and other tools and hacks for Zwift riders. Find him on Strava

      5 COMMENTS

      Subscribe
      Notify of
      guest

      guest

      5 Comments
      Oldest
      Newest Most Voted
      Inline Feedbacks
      View all comments
      wpdiscuz   wpDiscuz

      Get Started on Zwift

      Sign Up (Free Trial)
      Buy Zwift Ride
      Buy KICKR CORE One
      Read More...

      Newest Featured Posts

      Join the CommuniTTTy: On-Demand Zwift Time Trialing!

      Racing

      Zwift Will Not Be Hosting an Elite Zwift World Series This Fall

      Racing

      Support This Site

      Write a post, shop through us, donate or advertise. Learn more

      NEWSLETTER SIGNUP

      Zwift tips and news every 2 weeks! Click to subscribe.

      More Posts

      Zwift Charts: Climb Portal Growth

      Routes & Maps

      Friday Night Fun Races Announced

      Events

      Zwift Releases Fitness Trends Charts on Companion App

      Game Updates

      Chasing Yellow Grand Tour Mirrors the Tour de France Stage by Stage

      Events

      This community-driven site is maintained by Eric Schlange and a team of Zwift enthusiasts. Zwift Insider is independent of Zwift corporate (www.zwift.com), although Zwift does provide funding to help defray site costs.

      This site contains affiliate links to Amazon, Wahoo, and other brands. Zwift Insider makes a small commission on purchases made from these links, so please shop through them to support our efforts.

      Terms of Use/DMCA Copyright Policy

      Privacy Policy | Privacy Consent

      [email protected]

      Latest articles

      Join the CommuniTTTy: On-Demand Zwift Time Trialing!

      Zwift Will Not Be Hosting an Elite Zwift World Series This Fall

      Top 5 Zwift Videos: New Trainers, Time Trials, and Tacx Alpine

      Popular Categories

      • Racing1508
      • Events1012
      • News833
      • Training & Nutrition712
      • Interviews564
      • Routes & Maps443
      Comment Author Info
      :wpds_smile::wpds_grin::wpds_wink::wpds_mrgreen::wpds_neutral::wpds_twisted::wpds_arrow::wpds_shock::wpds_unamused::wpds_cool::wpds_evil::wpds_oops::wpds_razz::wpds_roll::wpds_cry::wpds_eek::wpds_lol::wpds_mad::wpds_sad::wpds_exclamation::wpds_question::wpds_idea::wpds_hmm::wpds_beg::wpds_whew::wpds_chuckle::wpds_silly::wpds_envy::wpds_shutmouth:
      5
      0
      Would love your thoughts, please comment.x
      ()
      x
      | Reply
      You are going to send email to

      Move Comment

    • Related Posts