The new 1k espically the 05-06 have proven to be fast bikes have seen them go mid eights with a good set up and rider and if u pay close attention most grudge bikes that compete with the 14 and the busa are 1k's now i bought a bmw 1000 this year and i hate to say it but it pulls harder than the busa and the 1000 my first run this year on the bmw stock height swb i ran a 9.60 at 141 brock had his running a 8.40 with some work so i truly believe the 1000 cc bikes are faster because of the power band and the weight advantage they have now the new zx 10and it is suppose to be a killer but got recalled for techinical bugs so i accept and enjoy the competion between the bikes cause it makes the factory make improvements each year which in the end we benefit from but the busa is still the king and always will be when it comes to the size of the stroker motors and the options u have to build a fast bike