YZ465H, YZ250H differences

[head]

Would someone be able to tell me what the differences in chassis and swing arm are between a 465 and a 250 please. I intend to change mine to a 465 from a 250. Thanks.

[ARN]

hi   i changed mine to 250 from 465 ,the frame is the same just needed the engine bracket from frame to head ,the swing arm on the 250 is shorter.

[head]

Did you use the shorter swing arm and how did it go.

[YZ250H]

hi   i changed mine to 250 from 465 ,the frame is the same just needed the engine bracket from frame to head ,the swing arm on the 250 is shorter.

Are you sure I thought they were exactly the same 

[ARN]

just checked the yamaha bible the 250g has the shorter swingarm ,the h frame on both 465 and 250
have a steepend rake by 1 degree compared to the g but they both have the longer swingarm.
i havent actually tried the shorter swingarm now that i have found this out i probably wont be as my frame is a h

[YZ250H]

Fair enough.
As far as the roller goes I think they are identical ... almost.  The 465 has different handlbar mounts (rubber mounted).
Everything should bolt straight in if you are doing H for H.

Most people take off the headstay anyway.  The jury is out, but I've been told it causes the barrel to crack  .