After reading the report on the new 450 in MXA, I wanted to get opinions on a few things. I think there are plenty of change which seem to be good, but also some which do not seem so good. Opinions please. The 4 speed thing seems to be a non issue really as it has been reported that with a 50 tooth rear sprocket(a popular upgrade for us)on the 426, the top speed of the 450 and 426 are identical. The titanium headpipe is cool, but after taking into account the stock bend of it being a mirror image of the 426, I can only wonder how long it will last compared to the steel unit currently available. The silencer is huge and will probably be replaced by most consumers so I do not think it is bad or good. Good Changes- -Less weight -It is a 450 -The coil is now on the spark plug cap. -The swingarms are no longer painted, but instead have been anodized. -Handlebar hot start Bad Changes- -Less oil -Less fuel -The webbing on the underside of the piston has been removed. I assume for weight reasons, but strength has got to be affected too right? -Crankshaft width has been reduced. See weight/durability tradeoff above. -The large oil pump of the 426 has been replaced with one off of a 250. I do not know if it pumps the same volume over time or if it is as strong, but downsizing an oil pump on a 4 stroke seems risky to me. -Smaller rear caliper and integrated master cylinder...look at an 02 CR or CRF for the reason why this is bad -Last but not least...no more wire mesh oil filters. They now will be paper and I assume throw away items. I wonder how many Scotts will sell now? Of course other things have changed but these seem to be the items which will delineate the 426 from the 450. Aside from the weight and auto decompression, I will keep my 426. I know that is a stupid statement because the weight loss could have only happend with all of the things listed above, but it seems that these bikes are becoming machines with a delicate balance between weight and durability and I hope that Yamaha knows what they are doing. Opinions please.