Motorcyclists in Western Australia will not be able to share bus lanes after a trial found it posed a road safety risk.

The trial, which allowed bikers to ride in selected bus lanes around Perth, concluded that there were no safety benefits, and that poor visibility and line of sight of motorcyclists posed a risk.

Road signs permitting motorcyclists to share the selected bus lanes around the city are now being removed.

The State Government says it is committed to improving the safety of motorcyclists, including ongoing research and education through the WA Centre for Road Safety Research, enhancements to the motorcycle graduated rider licencing program and support of the national motorcycle clothing testing program, MotoCAP.