The vehicle needs a disc brake.
Suzuki Access is a 125CC, much relaxed at 50-60km/h, If you can compromise~ 5kmpl for a 125cc, go for SuzukiAccess
Two heavy people can easily cruise on this. You will love its amazing pick up. Will become fan of it.
Pick access. Fresh new design and more economy, power and an affordable price tag. These should be good enough To be convinced. Take a look at suzuki access