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powerpod lite on fatbike
Posted: Sat Aug 13, 2022 12:17 pm
by cooloutac
Hello all, I'm wondering what tire size should I choose for my fatbike 26x4 tires I don't see it as an option?
I'm not a serious rider, just want to get a general number to follow my fitness progression. Any suggestions? Tks in advance.
Re: powerpod lite on fatbike
Posted: Sat Aug 13, 2022 1:02 pm
by Velocomp
cooloutac wrote: ↑Sat Aug 13, 2022 12:17 pm
Hello all, I'm wondering what tire size should I choose for my fatbike 26x4 tires I don't see it as an option?
I'm not a serious rider, just want to get a general number to follow my fitness progression. Any suggestions? Tks in advance.
It looks like your circumference is about 2394mm.

- Screen Shot 2022-08-13 at 12.53.18 PM.png (37.51 KiB) Viewed 2921 times
You can measure this precisely by walking your bike exactly one revolution of your tire, then measuring the distance traveled in one revolution.
You can enter that circumference in Isaac (Edit Profiles/Basic/Tire Circumference/Measured), then transfer it to your PP.

- Screen Shot 2022-08-13 at 1.01.48 PM.png (183.65 KiB) Viewed 2921 times
Re: powerpod lite on fatbike
Posted: Wed Aug 17, 2022 3:51 pm
by cooloutac
Thanks.
Re: powerpod lite on fatbike
Posted: Wed Aug 17, 2022 6:00 pm
by lorduintah
Following up from John's suggestions - with a speed sensor and a Garmin bike computer, you can set up the sensor to use the GPS features (automatic) to get a measured/estimated circumference and enter that value into ISAAC. I have noticed by this method that it actually can determine changes to the circumference with tire pressure, too!
Tom