Most successful race bike: YZ80F ('79) What a great bike. Really got it right that year.
Best MX bike to date: YZ250F (2015) WOW! Even compared to my 2008. (Thanks Sunstate @ CD11)
Bikes I've bought twice: (must be good)
RD350LC (first one written off early on...)
RM125X (first one sold by a teenage me, to fund the next bike.)
Bikes I'm unlikely to ever sell:
Bandit 1200S. Great all rounder, all the better for extensive mods.
KTM525 SX/SMR. 2004 Worthle$$, but so much fun at the recent Supermoto nationals (after a 7 year "rest")
YZ250F. Perfect condition, but never be worth le$$ than it is now. On the wall for the memory's before I'd "give" it away.
Basically, second hand bikes are worth so little, I can't bring myself to sell them. Large shed;filling up...