# Kickr Core v1 out of spec - high Watt readings

**URL:** <https://wahoox.forum.wahoofitness.com/t/kickr-core-v1-out-of-spec-high-watt-readings/31094>\
**Category:** Equipment\
**Created:** [March 30, 2026, 6:02pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-core-v1-out-of-spec-high-watt-readings/31094 "2026-03-30T18:02:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Povlhp](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/povlhp/32/25723_2.png) [@Povlhp](https://wahoox.forum.wahoofitness.com/u/Povlhp)\
**Post date:** [March 30, 2026, 6:02pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-core-v1-out-of-spec-high-watt-readings/31094/1 "2026-03-30T18:02:02Z")

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Just got a crank power meter. And my 6 mo old Kickr core v1 shows about 10% too much Wattage. Spindown runs 20s before stopping (max value?) - did a factory spindown. Says brake factor is 0.90 - which is out of spec and generally reported to overestimate watts. After this a standard spindown calibration is 19.2s, but I still have 7-8% “free watts” on the trainer.

I did create a support case

How did other solve this ? Is the only solution a swap ?