I love both, they have there advantages and disadvantages, Bikes arent reliable because they arent detuned, but quads are reliable, but bikes are faster. I will be rebuilding this 125 that i have alot, In my manual it says change the piston and rings every 3 hours (what the f**ck?)and im already needing fork seals, and a chain. So i will most likely be riding the blaster alot more when its fixed. And i wouldent trade the blasty for a 4 stroke turd i hate them.
the reason it says to replace piston and rings every 3 hours is for race use.. to keep itr 'fresh'... most guys that dont race there bikes just change them when its needed