you guys act like k1s are the DOPE SHIT! haha if you look you can find k1s with tires both in great shape for like $500 matter of fact my roomate has some i found him for 300 with tires. i just think its funny k1s arent anything special however either are those drags. please dont trade rpf1s for k1s or drags dude do yourself a favor you'll thank me latter man.