GREWO is a bicycle shop, repair service and rental business operated by ERGK s.c. in Turawa, Poland, at Ogrodowa 2C. The business serves cyclists with both practical workshop support and a broad selection of bikes, parts and accessories. Customers can rent traditional or electric bicycles, or shop for bikes and components through its online store and local business.

The product range covers essential bicycle systems and replacement parts, including brakes, gears, chains, wheels, tyres, tubes, pedals, handlebars, saddles and seatposts. GREWO also offers lighting, phone mounts and other accessories, alongside maintenance supplies such as chain oils and waxes, lubricants, cleaners, degreasers, adhesives, puncture patches and repair kits. Its workshop provides bicycle servicing and repairs, with customer feedback highlighting prompt, professional assistance. The rental service helps visitors choose a suitable bike and may provide locks and local attraction information. Online orders over PLN 200 qualify for free shipping, excluding bicycles. Customers can contact GREWO by phone or email for information about products, rentals and opening hours.