Police are investigating after seven bikes were stolen from the National Sports Centre in Douglas.
The incident happened between Saturday and yesterday and police say they're regularly used by groups at the NSC.
Officers say the theft means users won't be able to enjoy riding them around the track, and are urging people to get in touch if they've been offered a bike for sale.
If you have any information, you're being asked to contact police headquarters on 631212.
Two more schemes backed by government fund
Island to get Bikesafe scheme for first time
Jurby Junk's Stella dies aged 90
No plans to publish UK's assisted dying letters
Burst water main disrupts Onchan supply
Government advice following spike in data breaches
Plans for four-foot flood walls at Ramsey harbour
Garage blaze in the early hours of this morning