LOL, I donít blame your skepticism. Been building race cars, motorcycles, mtn bikes, etc, for over 3 decades now, so Iíve had my share of showing up to the weigh station to disbelieving inspectors. Once built a 19lb full suspension Mtn bike where others were more like 25 at the lightest. No one believed me till they picked it up.
This bike was weighed on an accurate 400lb postal scale, one wheel at a time, with blocks underneath the other wheel to maintain level. Probably not perfect but within a pound or two.
I did not weigh every item, so my numbers in the above post arenít really representative, but here are some of the weight savings in no particular order.
Exhaust: wow, with a CF muffler, thatís really significant weight. Someone want to chime in on just how much the stock exhaust and shields weigh?
Lithium Battery: (~5lbs)
Engine Cleanup: Deletion of various ďunnecessaryĒ canisters, valves, lines, etc. (more mass than I would have thunk)
Replace stock mirrors, turn signals with light weight integrated
Fender eliminator. Rear signals integrated into plate mount
520 Chain with Ultralight sprocket.
Grab handle and support delete
Several hours of steel bracket trimming and removal (center stand, previously mentioned engine component brackets, etc)
Aftermarket flat bar (have you ever felt the heft of the stock bar? HEAVY)
Ö.and probably a few Iím forgetting.
About the only place I fudged is notice I said ďwith 3.5gal of fuelĒ. Most magazines weigh the bike full of fuel, which Iíve always thought was unfair to bikes like the 919 that are built to be ridden (unlike some poser bikes with 3 gal tanks). It was 409 lbs full of fuel, but I think 3.5 gal is an honest state to measure it. I don't doubt for a second that I took more than 60lbs off it. Friend compared it to his CB500 and subjectively it feels much lighter.
A stock 919 is listed as weighing 455 pounds, all fluids, minus gas, or 485 full of gas.
Tell me if I have this correct. You took 20 pounds worth of crap off the bike. The exhaust system that you now have is 40 pounds lighter than the OEM exhaust. So you have a custom 919 that weighs 60 pounds less than a box stock 919? Pretty amazing. I'd like to see a pic of that thing on a scale.
My 929. Appearently going down hill.