Six-time World Superbike champion Jonathan Rea has contacted the police after two of his training bikes were stolen from his garden shed.
His son Jake's bike was also stolen along with gardening equipment.
It happened at his home in Templepatrick, County Antrim, on Sunday night.
Mr Rea said his family was "overwhelmed by all the support we've received in connection with the bikes and equipment that was stolen from our property".
"Thank you so much for all the kind words," he added.
"The matter is now in the hands of the PSNI."
In a tweet, he urged people to help him get the items back.
He said the children's bike had been fully customised so was "easily recognisable".
🚨 STOLEN!!🚨— Jonathan Rea (@jonathanrea) November 9, 2020
Last night thieves broke into my garden shed and stole my training bikes and kids bike along with garden equipment! Please help me to get these bikes back!
The Police Service of Northern Ireland confirmed they were investigating a report of a burglary in Dunadry area of Antrim.
"Sometime between 6pm on Sunday 8 November and 11am on Monday 9 November, it was reported that two Kawasaki motorcross bikes, one Yamaha motorcross bike, a generator, a chainsaw and a set of hedge clippers were taken from a shed in the area," an officer said.
"Enquiries are continuing and police would appeal to anyone who witnessed anything suspicious in the area to contact police on 101."