This is in one of the best tours I've ridden this year.
Zoom burst picture - can't get it to quote the picture?
can you enlighten us on this nice picture technical trick ?
Probably one of the following:
* The old way, classic zoom-burst: slow shutter speed, zooming while shutter open, combined with flash, looks like two flash heads used off camera.
* The modern way, good well exposed multi-head flash shot, and a bit of photo-shop zoom burst.
If it was the old way, top marks. If the modern way, still high marks 'cos its been done really well.
Build it like you owned it!