Took my 450 out to VP today with my buddy (raptor)who bought my old 426.. The 450 is a blast to ride.... But before i go on i will answer the "Is it faster ??" We drag raced the bikes 3 times 1st time 426 won , next the 450 won, 3rd time we were dead even threw 5th gear but this was done just for fun as you dont drag race in mx from a dead stop, but it gives a nice idea of the power call it a draw...so basically it comes down to the rider as motox is 80-90% rider. On the track my buddy on the 426 smoked me all day, then again i am a nov rider & he is a fast int... I passed some yam & ktm thumpers & some passed me... On the track the bike is pretty nimble, excellent brakes & power that builds like a big electric motor yet rev's out nicely. The bike was real neutral jumping in the air also. The 450 is also super easy to start hot or cold, even in gear out on the track... but then again i had the drill down on my 426 also so the only real adv this might be is if you stall during a actual race or you want to win Practice HA! Compression braking was much less on the 450 but there is still some... i wouldnt chop the gas on a jump face... The clutch pull on the 450 is very light... i hope it stays that way!! shifting was good... same as the blue meanie... I would say bone stock the 426 has better stock suspension, but the honda seems to be pretty close to it but where the yam is pretty balanced stock the honda seems to be stiffer up front & a bit softer out back.. once i set the sag & went the back was better yet kinda springy... but for my 1st day of riding on the bike its in the ballpark just needs some tweaking with the clickers .. Hopefully the 450 will be as bullet proof as the 426... i dont think ( as of today) there is a more reliable 4stk or even 2stk out there right now than the 426, it served me well. I would rate them like this Suspension (stock) 450--- B+ 426--- A engine 450 --- A+ 426 --- A+ brakes 450---- A+ 426 ---- A starting 450--- A+ 426--- B --- until you know the drill... weight 450 ---A 426--- B Reliablity 450--- ??? 426--- A+++ I think both the bikes are awesome... the only handicap i see for the blue team is needing to go on a diet & starting the bike which just takes a few practice rides... but who can blame yamaha for not doing this sooner they are selling every stroker they make! Also i didnt compare to KTM because i have yet to ride one ... but i do have 2 yrs on the 426 .... But basically it all boils down to rider preference (ktm,honda,yam) all make excellent thumpers!!!!