The 4-stroke and air-cooled 99.7cc single overhead camshaft driven motor has received a few important tweaks to aid and improve efficiency. It continues in the same basic format, with an alloy head as cap over a cast iron cylinder. Always a sturdy engine, the Star City continues to deliver 7.5bhp at 7500rpm with a refined and reassuring feel. Kerb weight also remains a constant at 108kg. Key changes on the rejuvenated bike are TVS switching to a Keihin carburettor, and adding on roller rocker-arm followers that help to better engine efficiency by slaughtering friction. Peak torque output remains the same 0.76kgm at the crank built up at 5000rpm, and so does Performance, which in truth matters little on a commuter bike. The new Star’s proven gearbox internals too remain unchanged, and all-up gearshifts remain just as feather smooth as on the first bike. A cable-controlled clutch feeds just the right level of progression and weight to a rider, and among the few changes on the new bike is a healthier exhaust note. There also exists better engine response that can be picked up by an experienced throttle hand. The Star City manages a true top speed of 85kph, while it completes 0-60kph in 8.20 seconds, both of which are at par with its competitors. The revised motor delights with an ability to trundle away effortlessly from low speeds in high gears.