The road was an unlit country lane, "so it would have been dark".
The death has been referred to the corner, while police investigations into the cause of the crash are ongoing.
Bryce worked at a Clandeboye dairy farm outside Temuka.
Two Facebook pages have been set up in his honour.
Posts pay tribute to a popular, kind, and hard-working young man.
"Love you always, son," wrote dad Phill Bamford, of Christchurch.
A funeral would be held in Christchurch, as well as "some kind of get together" in Temuka for Bryce's friends there.
His employer, Paula Davis, paid tribute to "a great worker in our shed" who will be "sorely missed by all his workmates. RIP Bryce."