Chickenhawk makes some but they're pretty pricey. Around $450 if I remember correctly.

 

we have the pole position in stock for 12 wheels, typically takes about 3-4 to make since they are special order

https://www.drowsports.com/chicken-hawk-racing-classic-line-pole-position-three-temp-12-wheel/

 

There is these guys also.... a bud of mine just got a set.


SV Racing Parts | Store

 

160 $ shipped. Ive ran mine for a year now no issues.

https://www.ebay.com/itm/Monkey-Bik...ooter-12-Tire-Warmer-mini-bike-Tyre-Cover-customized-fast-heating-/221132224403