42115 - Issue: front and back wheels rotate in opposite directions. Gearbox seems to function and is not stuck. But if I put it on all 4 wheels it just doesn't move.
Technic-Rims
Lego Wheel 11mm D. x 12mm, Hole Notched for Wheels Holder Pi
LEGO Technic Tires + Wheels Pack - Technic Tires + Wheels Pack . shop for LEGO products in India. | Flipkart.com
Wheel 62mm D. x 46mm Technic Racing Large with 2x 'OZ WHEELS' Pattern (Stickers), with Black Tire Technic Racing Large with 'MICHELIN' White Pattern (22969pb01 / 32296pb02) - Set 8461 : Part 22969c06 | BrickLink
Amazon.com: Technic Lego 8pc Wheel and Tire Set (Mindstorms nxt ev3 tyre) 56145 44309 : Toys & Games
Wheel 23800 | Tyre Brick | 81.6x44 | 23799 | Blocks - 20pcs/sets 62.3mm D. X 42mm Racing - Aliexpress
Wheel 56mm D. x 34mm Technic Racing Medium, 6 Pin Holes : Part 15038 | BrickLink
LEGO® Compatible Off-Road RC Wheels - YouTube
size - What are the largest Technic-compatible tires on the market? - Bricks
8 Lego Technic Large Wheels – Techykids.com
LEGO WHEELS Caterpillar Tracks Pullback Tyre TECHNIC CITY Various Sizes Bundle. | eBay
LEGO COMPATIBLE CUSTOM WHEEL and RIM 3D model 3D printable | CGTrader