LC 135 - Servicing and Tyres changed

I had my workhorse LC135 motorcycle serviced and got the tyres changed as well. The rear tyre need change after exactly 1 year of ride which the speedometer clocked about 12500km. I changed with size of 90/80-17 for both rear and front tyres. The ori size for rear is 80/90 and front is 70/90. So the new tyres are bigger that the ori. The service and tyres burt about RM250 from my pocket. Tyres alone RM190.