Thieves reversed an SUV through the front sliding doors of Sportsmart in Kilsyth.
Yarra Ranges CIU is investigating the ram-raid at the Canterbury Road store, which occurred about 4.30am on Tuesday 18 September.
Police said the bandits wore hoods and gloves and stole $5000 in sporting equipment and clothing.
Call Crime Stoppers on 1800 333 000 with any information.
