RE: Do any proline tyres fit on Losi 420 wheels?
Any of the 40 series will.
Big Joes for ex.. Which btw are much lighter than the stock tires.
I still have my stock tires after five years though. I like them. They last forever, and you can abuse them on ALL surfaces without screwing them up, and the tread just never goes away. I had some Big Joes but sold them unused because I thought it would have been a shame to shred them up on pavement. The stock tires are really good all-rounders.. They just weigh a ton.
I think I heard Proline was coming out with 40-series Badlands, but not sure. Badlands are awesome - but again, not for pavement...