The crooks netted eight Polygon Siskiu T8 mountain bikes, estimated to be worth around £12,800, from Laggan Wolftrax Visitor Centre near Newtonmore in the Highlands between 11pm on Friday and 3am on Saturday, January 16.
At the same time, it was reported that 12 mountain bikes, of various makes and models, estimated to be worth around £39,500, were stolen from The Wee Bike Hub along with £3,100 of clothing.
Enquiries into the incident are ongoing and officers are appealing for anyone with any information to get in touch.
Revealing their anger at the crime, The Wee Bike hub took to Facebook, posting: “After trying our best to survive this s*** storm with Covid, lockdown and virtually no business since October, I get a huge kick in the b***s. I am absolutely raging.
"All customers affected will be contacted and arrangements will be made.. and if anyone is offering you a cheap bike, kick em in the n*** and steal it back.”
Detective Sergeant Andy Bilton said: “In order to steal 20 mountain bikes someone would need to have access to a large vehicle.
“We are appealing for anyone who may have seen or heard anything in and around these premises and who may be able to assist with our enquiries to get in touch.”
Anyone with any information is asked to contact police on 101 quoting incident 0935 of 16 January.