I was somewhat skeptical and got a bottle as a test. This stuff really cuts through dirt and grease that specifically builds up on a bike. I鈥檓 a daily bike commuter and try to keep my bike clean; this has been the best product I鈥檝e used. I also ride in deep Canadian winters (-30), so it鈥檚 important to keep my bike in top condition to prevent rusting. This stuff does the trick on the frame, drive train and breaks. I got their other cleaning products as well鈥攊mpressive stuff! Recommend the concentrate packs you can get if you want to save some money after testing this stuff out.