Four thieves broke into the Fishface Cycles shop in Walkers Way, Wombourne, just before 1.30am on Tuesday.
They smashed their way into the shop then spent three-and-a-half minutes stealing nine mountain bikes worth about £35,000.
Owner Karl Fisher said the group smashed their way into the shop.
He said: "CCTV footage showed at 1.26am four people were trying to get through the door and one of the windows until they broke through the window by pulling it out.
"One climbed through and kicked the door until the lock broke then they all piled through and flung nine bikes out and £35,000 worth of bikes were stolen.
"They were all masked with hoodies on.
"We opened again on Tuesday we were just busy repairing the front door and boarding up the window, we just carried on with quite a bit of tidying up.
"It's just a good chunk of stock missing, they didn't touch the till or anything, only took mountain bikes.
"They were in the shop for three-and-a-half minutes, that's £10,000 a minute.
"There was a white van parked outside."
But Mr Fisher said posts about the break-in online have reached hundreds of thousands of people.
He added: "The support has been brilliant, the posts on Facebook we've done have reached more than 160,000 people across the country and we've had bike shops from up north ringing us asking if we're ok.
"We've just got to get on with it now, and not take it personally."