• UPDATE 02.08.2024 Moved the notch to the rim instead. Removed the notch from the hub cap. This will make hubcap easier to print and the notch unbreakable for those who had trouble with the notch on the hubcap. Updated the tire base step file inner width. Added step file for the rim. Also updated the 3 tires inner width which i have on thingiverse. Added step file for the axle ring.

• UPDATE 21.06.2024 Added STEP file for a Tire base which you can build upon to create your own tire. Also added som info about the max diameter. Packed into "iRim Tire Base._step_file.zip"

• UPDATE 17.06.2024. Created hubcap with support for a tire with a notch. Then you do not need the two 2x20 mm screws to lock the wheel. Also updated the three wheels i have created with a notch.

• UPDATE 26.05.2024. If the tire for some reason has a smaller width due to filament properties, it could spin. You can quickfix with some glue, or use the new hubcap which has two small holes for 2mm screws to stop the tire from spinning.

Btw. If you use it, please consider buying me a coffe https://buymeacoffee.com/larsivarha3 :) Thanx!

The original tire for the i-series is inadequate when it gets a bit too steep and a bit too slippery. I didn't want a solution where I attach large spikes to the outside of the original parts and damage them. I wanted a solution where I could easily change only the tire so that I can use different tires for different terrains, which is why I designed this.

This rim fits the i-series (I have an i108 myself) and reuses the disc to attach the original rim to the mower. It should be printed with PETG or another material that withstands sun and heat.

The tire that is in this picture, is this: https://www.thingiverse.com/thing:6634694

Here is another version which is very good on slippery conditions:
https://www.thingiverse.com/thing:6634719

For extreme conditions, this is now my goto tire, and currently the one i use:
https://www.thingiverse.com/thing:6642381

Successfully used on my lawn with a maximum slope of 18 degrees or 34%. This is also where my border is, so it turns there. (see picture)

There are two versions of the hubcap, one without a logo, and one with a logo (for those with multicolor printing capability). The hubcap uses 6 screws of size 4x25 mm to hold the tire securely in place. The tire should be printed in TPU.

The Axl ring should be glued to the rim using superglue or a glue gun.

To remove the original wheel, use a screwdriver and pop off the original wheelcap, then remove the three screws and the wheel comes off. Reuse the round disc when attaching the new wheel.

After switching to this solution, the mower climbs my steepest slopes without major issues, but this depends of course on the type of tire design you use.

Previously, it would start spinning quite early, take a long time to find detours, and in the worst case, get stuck. Since this wheel change, it hasn't gotten stuck even once on my lawn.

Feel free to create your own tire designs and share them with us here :)
And share your makes!