Three men aged 18, 23 and 32, all from Sittingbourne, have been arrested on suspicion of causing death by dangerous driving.
Ryan was pronounced dead at the scene while the pillion passenger was taken to local hospital with serious injuries.
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Those close to Ryan have been visiting the scene of the tragic crash to pay tribute to the "amazing friend".
Dozens of tributes and flowers have been left on the side of the road where the incident happened.
One friend left a note saying: “Words cannot describe how broken we are. A brother and a friend".
Another message read: "I can’t believe I am writing this but you were an amazing friend and we had so many laughs. Miss you brother.”
Friends have also taken to social media to pay tribute to the 26-year-old who was a project manager at Avidety, a company specialising in the construction and maintenance of overhead and underground electricity networks.
One wrote: "Still in shock and devastated to lose such a top bloke.
"R.I.P. Ryan Rudden such a kind and genuine person who was always laughing and up for the crack. Avidety will not be the same with out you mate.
"Keep bleeding the blue up there brother."
Officers from the Serious Collision Investigation Unit are keen to talk to anyone who may have witnessed the incident, or who saw the car in the moments prior to the collision.
In particular, officers would like to talk to anyone who was at the Milton Creek fishing lakes who may have information about the occupants of the car.
Anyone who witnessed the incident or has dash cam footage which could assist officers with their investigation is asked to call the Serious Collision Investigation Unit on 01622 798538.