Part 2 of 2
So in conclusion, it seems that the amount of traffic, even on relatively quiet roads, is a much bigger factor influencing the average speed than what bike you're riding! I've no doubt that the Honda would wipe the floor with my Zero on a racetrack, but on the road it makes no difference, or so little as to make none.
From a cost point of view it becomes difficult to justify taking the Honda out on a ride like that: £7.50 in petrol versus £1.50 in electricity, tyres that last 5,000 miles versus 10,000, servicing costs, higher insurance (although I tend to lie about the number of miles I do a year when getting quotes), brakes don't last as long and cost more.
Fun should probably be the most important measure when assessing motorcycles used for pleasure. The answer isn't so straightforward there either! I can't deny that the Honda is an exquisite piece of machinery and an absolute blast to ride. However, when going out for a ride, it's nice to take in the scenery a bit and enjoy being in the countryside. That's a lot easier on a bike that is quiet and provides effortless power. The Zero is a fun and very rewarding bike to ride; it handles a little like a BMW GS with a low centre of gravity and a planted feeling on the road. It glides around corners with confidence, no fuss and just lets the rider enjoy the experience. I can accelerate hard without bothering the locals or attracting unwanted attention. Overtaking is more satisfying as I pass by vehicles making almost no sound. No bother, no drama, just solid, safe, effortless and fun.
It won't surprise you that I'm very happy with both of my bikes. I shouldn't really compare them as they each provide their own experience. Much like having more than one wife, I imagine. The added bonus is that they don't argue with each other... ;-)
I hope you enjoyed reading about my little experiment. I found it an interesting experience and wanted to share it with you. Please comment or reply as I'd love to hear your thoughts or any similar experiences you've had.