# Noise on lower cogs with new Kickr and new Bike

**URL:** <https://www.trainerroad.com/forum/t/noise-on-lower-cogs-with-new-kickr-and-new-bike/52076>\
**Category:** Equipment\
**Tags:** bike-setup, bike, trainer\
**Created:** [January 30, 2021, 12:44am UTC](https://www.trainerroad.com/forum/t/noise-on-lower-cogs-with-new-kickr-and-new-bike/52076 "2021-01-30T00:44:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![seanvk](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/seanvk/32/115098_2.png) [@seanvk](https://www.trainerroad.com/forum/u/seanvk)\
**Post date:** [January 30, 2021, 12:44am UTC](https://www.trainerroad.com/forum/t/noise-on-lower-cogs-with-new-kickr-and-new-bike/52076/1 "2021-01-30T00:44:24Z")

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Noise on the lowest two cogs. I just got my Wahoo Kickr Smart Trainer. I’ve set it up with a 2021 Giant Contend AR 1. I’ve noticed that when the chain is on the lowest two cogs I hear this rattling sound. My bike is 700x32c, 11 Spd rear cassette (so I’m using the supplied one), 142mm Thru axel. When I move the gears to the middle cogs it’s really smooth. Any suggestions?

[link to photos.app.goo.gl](https://photos.app.goo.gl/vd9fXSVn4cSJX5TV9)

Thanks,  
Sean

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<div class="post-metadata">

**Author:** ![seanvk](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/seanvk/32/115098_2.png) [@seanvk](https://www.trainerroad.com/forum/u/seanvk)\
**Post date:** [January 30, 2021, 1:57am UTC](https://www.trainerroad.com/forum/t/noise-on-lower-cogs-with-new-kickr-and-new-bike/52076/2 "2021-01-30T01:57:38Z")

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Solved. Combination of tuning the indexing in the rear derailleur and avoiding cross chaining with the small ring. That’s it!!