Rolon Brass Chain, Sprocket set for MT15 V1/V2. This is unavailable anywhere else in Bangladesh. Original Indian Rolon brass chain sprocket. It is much hardier than any other product available in the market. Once you adjust the chain slack, you won't need to touch it for another 2,000 kilometers. Enjoy long-lasting performance without overheating on long rides. You can ride comfortably for 20,000 to 25,000 kilometers. Noise is reduced to near zero. Most MT 15 riders in India use this. You get smoother acceleration. In short, this is a direct replacement for the stock chain sprocket. You can check the rest on YouTube. Brand new product, only opened for photography. Price is almost fixed. Thank you.