First the good news: protector backpacks can cushion the impact of a fall down to two per cent of the original energy. Now the bad news: back protectors - with or without a rucksack - are virtually ineffective against really serious back injuries. Accident surgeons agree: the greatest dangers for mountain bikers lurk in rollovers. This happens at lightning speed and often leads to overextension of the cervical spine. The possible consequence: fracture and paraplegia.
We tested these models to see whether protector backpacks do what they promise - the results are available as a PDF in the download area below:

Editor