TULSA, Oklahoma - Friends have set up a fund to support the family of a Tulsa man who died in a motorcycle wreck Sunday night.

Tulsa Police identify the man as Ulysses Rivera, 26.

According to the GoFundMe page set up for his family, he was known as “Uly” to his friends.

They say the fund is to help his mother pay for funeral expenses, but also to support his girlfriend who's pregnant with their son.

Tulsa Police said Rivera died Sunday night after crashing on Highway 169 near 21st Street. They said Rivera passed a car on his chopper when he lost control and lay the bike down. Police said the car then hit him.

Friends dispute Police's account of what happened, saying the car caused Rivera to crash.