Will be interesting to see how this goes in court

Truckie accused of fatally ploughing into cyclists on Sydney motorway

A truck driver has been charged with manslaughter over the death of a cyclist who was killed while riding on a western Sydney motorway, police say.

The cyclist, a 35-year-old from Wollongong named by media as David Williams, was pedalling along the M4 at South Penrith in April with three others when a B-double ploughed into them.

It is alleged the truck veered into the breakdown lane at South Penrith about 7.40pm.

A 25-year-old man, his 20-year-old sister and a third man, aged 23, were seriously injured.

The group were not long into their trip from Sydney's western suburbs to the Blue Mountains.

A 27-year-old Colyton man has been charged with a range of offences including manslaughter, aggravated dangerous driving occasioning grievous bodily harm, driving under the influence of alcohol or other drug, and driving a vehicle with an illicit drug found in blood.

He was granted bail and will appear at Penrith Local Court next month.

No matter what precautions you take as a cyclist, if there's a speeding, aggressive, drug fueled truckie coming up behind you, your number is probably up.