The victim suffered a broken nose, cuts and significant blood loss after he was punched in the face and fell to the ground.
The incident took place after the victim entered Kings Road, walked past Moko Lounge and towards Bambino’s takeaway.
He talked to another man outside the takeaway. The man threw a punch with his right hand into victim’s face.
The incident took place on Sunday, 28 February at around 2am.
Officers investigating the assault would like to speak to a man with brown hair and a light blue shirt who was pictured by CCTV.
They would also like to speak to a man with short blond hair and a black shirt, also pictured by CCTV, who may have witnessed the incident.
Anyone who has information that may help the investigation is urged to contact North Yorkshire Police on 101, ask for Michael Haydock and quote incident number 12160035223.
You can also email PC Haydock on Michael.Haydock@northyorkshire.pnn.police.uk or contact Crimestoppers anonymously on 0800 555 111.