Front wheel lock-up

[Madmax]

A friend of mine who rides a BMW had a bad off on an open highway while cruising when the front wheel instantly locked up, stoppied the bike, spat him down the road, and then cartwheeled itself into the scrub as a write-off.

He is an experienced rider and ex-racer, and in his words grabbing a huge handful of front brake wouldn't have been enough to do the same as what happened.

On inspection of the bike when he was released from hospital there was no evidence of rotor damage, brake lock-up, sticks lodged in the wheel/rotor, or dead furry animal evidence on the bike or road.

The friendly NSW constabulary has charged him with not being in sufficient control - simply because there was no evidence of what caused the accident and they figured it would help to charge him with at least something!!!! He will be fighting the charge.

Has anyone heard of or perhaps experienced anything the same or similar? It seems very strange. Any experiences or knowledge might help him out with understanding or at least knowing it isn't all in his mind!!

Was it a model with ABS?

If so has there been a fault, either software or hardware?

Tough trying to prove not fault when the evidence is now normal looking.