The court heard Higson, who was on her way to lunch with her brother and aunt, had driven on the wrong side of the undulating road to overtake a cyclist without being able to see what was coming in the opposite lane.
Judge Rose said Mr Coster was also unable to see what was coming in the opposite direction.
“The outcome was inevitable and certainly tragic.”
Mrs Coster, who was in court for the sentencing, paid tribute to her partner and husband of 27 years.
“I loved Darren with my whole heart. He was my soul mate, my forever, my world.
“I miss him more than I can put into words. I will never be the same again.”
The couple’s son Charlie was 24 when his dad died and now has a son of his own, one-year-old Henry.
Mrs Coster said her bike enthusiast husband, who was a member of display teams, “should be here now, sitting Henry on his bikes and teaching him all there is to know”.
Mr Coster shared his love of bikes with his brother-in-law Ian, who described him as his “best friend” who was “good at everything he did”.
“I want so desperately to pick up the phone to him. The lessons in life Darron gave me were just everything to me.”
Mr Coster’s sister Debra said her brother “chose to live his life with fun, love and spirit”.