I love it when people talk about how heavy the reciprocating mass is on the WR450 due to its size, when the KTM450XC has the exact same bore and stroke 95 x 63.4mm. Both engines have twin overhead cams and counterbalancers. The KTM probably has a lighter flywheel, but most people end up adding a flywheel weight to it anyway, so that is a mute point. Ditto on the YZ450F.
That's when you were comparing the WR to a KTM 350, not a 450. So which is it?
Think reciprocating mass is making your bike heavier ? Start it up and move it side to side while idling. Then rev it to the redline and do the same thing. Feel the difference ? That is the MOST difference that reciprocating mass could make to the handling of the bike.
Yes, it absolutely is. Your test is not real world. It's a fact, just get over it already.
Wanna know the real reason the KTMs feel light ? Other than being 18 to 24 pounds lighter, its chassis geometry. 22 mm offset versus 25, steeper steering angle, 27.5 degrees versus 26.3 degrees.
This is truly hilarious... 'other than ACTUALLY BEING 18-24 lbs LIGHTER'. They're lighter to begin with. There's your answer, it's not that complicated.
I think the whole light and flickable bike movement is over rated. The KTM200XC rider couldn't make it up a big hill on our last ride. Now way, no how. Had to take a long traverse and then pick his way through a rock garden and then a bunch of trees to join up with the group. How tiring and enjoyable was that ?
You really think that's the bike? LOL It's the rider. I know guys on 200XCs that would ride circles around you, and take you places you'd be begging them to ride your bike out for you, guaranteed.
The vet expert bored and stroked YZ125F rider was so tired after another ride he couldn't stay awake on the ride home. Commented that he needed a bigger bike to keep up with the 300cc 2 stroke riders. He spent his day constantly shifting and trying to keep his engine in the powerband.
Vet expert that's that out of shape? LOL ok. And what's a YZ125F? Haven't heard of that one....
Every 250F rider I know has either talked and wished about engine modifications or is running a ported head and/or big bore kit, to various degrees of success. Furthermore, all the Japanese woods 250Fs (Yamaha and Honda) are heavy pigs, so most of the 250Fs being used in the woods are motocrossers, suffering from the wrong gear box and suspension.
Well you must not talk to too many 250F riders, or you ride desert and/or MX and nothing else. A lot of guys I ride with have 250Fs, myself included. None have big bores. Power isn't everything, knowing how to ride is.
And you're calling the CRF/WR 250s heavy pigs? Talk about the pot calling the kettle black... lol.
I think the top woods bikes candidates are the YZ450F, YZ250 and WR450F. All of these will require a bit of work in various areas. At least the Yamaha motocrossers in this list can use WR gearsets in their transmissions. This isn't an option with other manufacturers. For me its easier to remove weight from a WR than to mess around splitting YZ cases to install WR gearing.
And you know this how exactly? From your vast years of experience riding all kinds of bikes in all kinds of conditions? Or from riding your one bike a year and just reading a bunch of crap on the Internet? Try getting some more seat time and less keyboard time and maybe you'll clue in how the real world works, it's not just spec sheets.