yeah 6'5" and 255 out of the shower. I do need the ponies, I will allwasy have a 500+ CC bike in my garage because of my size. but as I mature as a rider and learn the delicasy of hill climbing technique I find the 450e or any 450 gets me up any hill the 510 does...the Fe450e screams up big oatmeal hills at clear creek and I never find the tranny too gapy at Clear creek, but clear creek is not the wide open desert terrain..one big hill climb then back to the tight stuff does not make a desert day.
I had Dale's kit in the bike - ( it was COLd and the kit has not seen a lot of 450 experience, I am not ready to play with it) yes and trouble getting my bike to run well in varying conditions, the one day I had it running good the bike was "brighter" and another rider who rode it with and without Dales kit - he commented the same, "brighter" BUT guys I'm trying to be polite here...it's not the jetting, suprizingly it's the wide ratio tranny....the bike is gapy as hell out there in the desert.............and it's power reserve is not strong enough to over come the gaps. I know because the Fe550e is a wide tranny too but it has power and displacement to spare and arm pull suck you right thru the gaps.
In the woods or any single track the wider gaps are still there but not so determinant because you are shifting and braking and darting though the woods and the Bike'e LIGHTWEIght is like a nimble ghost in the woods , it really likes the single track..........yes the Single track we had up in the hills of Nevada when the trail is narrow curvy and changing and rocky then sandy then bermy wow the berg 450 just rails it, but get some open stuff that goes on for ever and it's a lightweight in the power delivery and the tranny is gapy- bike gets kinda winded and needing a special touch to make it go with the others. you have to keep it in it''s sweet spot out in the open, while the Fe550 is sweet all day long in the big open terrain