Malossi K-Drive drive sprocket 27 teeth Kymco AK 550 Malossi offers a wide range of K-Drive sprockets with different gear ratios to meet different requirements. The aluminum sprockets are subjected to a 25 micron hard oxidation, making them extremely light and wear-resistant at the same time. The central bushing, which is made of a special steel alloy without heat treatment, avoids problems with the drive shaft. technical data k-drive sprocket malossi: Teeth: 27 Material: Aluminum Suitable for: KYMCO AK 550 ie 4T LC Euro 4 2017-2020 (SAA1). We also stock K-Drive sprockets with 24, 28 and 29 teeth.