Good quality rear Indian Lambretta crown wheel with 46 teeth. This is the standard sprocket for Series 1,2 and 3 Li, SX and TV scooters, but can also be used with the GP DL to change the final drive ratio gearing -m 19/46 being very popular with certain exhaust pipes. 
Comes without the bush or needle rollers, these are available on this website.
 
Product code: LUAF1604