I have seen an ad for a 1990 K100LT at a dealer that I am interested in, and have spoken to the dealer who tells me both ABS units on the bike are not working and replacements from BMW are approx. £1600 each. This would put me off buying the bike if it was the only option. Does anyone know if ABS units on these bikes can be repaired? And would non functioning ABS be an MOT failure in the UK? (This would be my first K bike - I've had boxers before but have decided I want a K.)