All the damage caused to my Technium/Agattu has come from carrying the bike on the car rack. And that's how I managed to break the front light (shimano dynamo). Looking for a replacement has been salutory in that the cheapest Busch and Muller replacements seem to be £25 upwards (steeply upwards) but couple of days ago I found a "Smart BL120 HGO" which I've just fitted. It looks ok, seems well made, is switched for front and rear, fits directly on to the bracket from the original light and cost £9 delivered from parkers-bolton.
eBay - The UK's Online Marketplace
eBay - The UK's Online Marketplace