He was rushed to hospital in August 2020 to undergo six hours of surgery after an electric bike accident at his Malibu home.
The former X Factor boss, 61, looked happy and relaxed as he cycled around wearing a helmet before stopping for a water break and cuddling up to Lauren.
Fresh air: Simon Cowell enjoyed a scenic bike ride in Malibu with his girlfriend Lauren Silverman on Monday - a year after his back surgery after an electric bike accident
Simon dressed casually in a grey T-shirt and dark trousers and kept his sunglasses on for the outing as he chatted on the phone while taking a break.
Meanwhile Lauren kept cool in a grey vest, light pink trainers and black leggings as she got some exercise.
The pair looked loved up as they stopped for their water