So, has it really sold and you are negotiating shipping cost? Bike Flights recommends using a frame specific box from LBS or using a bike box that has been cut down to be under the size restrictions. They say that it also needs to be under 30 lbs. I guess it just takes a little creativity. As long as Striknein is covering the difference, what's the problem?
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Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!