Fans desperate to watch Sir Bradley Wiggins attempt to break the UCI Hour record in London next month are being warned not to buy tickets from unofficial sources – and risk being refused entry to the velodrome at Lee Valley VeloPark if they cannot prove they were the original purchaser.

As we reported last week, tickets have been changing hands on websites such as eBay-owned StubHub for as much as £300, with 11 places for the sold-out event on Sunday 7 June currently on sale through that site.

But Sky Tickets, which handled the original sale, has now written to purchasers to tell them to bring identification and proof of purchase to the event, where Wiggins will aim to beat the 52.937km set by Movistar’s Alex Dowsett earlier this month. The email reads:

Congratulations on securing tickets to see Bradley Wiggins take on the UCI Hour Record! The event sold out in record time and we hope you're looking forward to a fantastic experience.

Please remember to bring your order confirmation email and a form of ID to the event. All tickets will be checked at the venue and proof of purchase will be required for entry. Any tickets sold on secondary ticketing websites will be confiscated.

Sky Tickets adds that anyone with questions should contact their customer service team.