Not tryin to be funny or anything but when yall ask for the FASTEST STOCK QUAD!!!! You have to at least say which class of engine to be really truthful. Thats like having a Welterweight fight a Heavyweight. Not in the same weight class.. So I should suggest that you say 400Ex or a Suzuki LTR400 etc.. Nah mean.. Or 450ER YFZ450 and so on. Cause for someone to compare the speed of a YFZ450 to a 700R is not a good comparison.. Just noticed this from readin other topics...

 

Well guys i own a stock Suzuki lt500r Aka Quadzilla and they call it Quadzilla for a reason I can post a top speed ive raced cars with this thing Totally stock it runs 92 miles per hour the one i had 8 years ago modded out did over 130 this is a FACT !!!! It will Eat any Fourwheeler out there u dont believe me Lets Race!!

 

No 450 will stay with the KTMs 525 or the polaris outlaw 525 with the same motor. The KTM450 is as fast as any other 450 but there 525 is a step up plain and simple.

 

the fastest stock atv is a suzuki Lt500 Quadzilla! they will make the 4strokers look like poop if they hook up. and the KTM 450 525 is super nice...but that damn thing basically comes STOCK with ulot of uprades already lol, now acceleration the outlaw 525 might be the winner on that

 

the quadzilla was and still is the fastest bone stock quad ever made period.
do some research on the web....QuadracerHQ

 

anyone who really wants to go fast is not going to have a stock quad because imo every single one is SLOW!