High quality 16T front sprocket. Most current production front sprockets on the market are Indian made and do not run concentrically (i.e they’re not even round!). This can cause endless problems from increase in vibration levels to wearing out bearings, cranks, chain guides and clutch sprockets in double quick time. This new 17T Italian made sprocket sorts all these problems out. There is now NO reason to use crappy oval Indian sprockets.....