Aerox 155 Specifications

The Yamaha Aerox 155 is powered by a 155cc liquid-cooled, 4-stroke, SOHC engine with Yamaha's VVA (Variable Valve Actuation) technology. That might sound like brochure-speak, but VVA genuinely changes how the engine performs - it switches between low and high cam profiles depending on engine speed, delivering strong low-end pull for city filtering and a punchy top-end surge when you crack the throttle on a highway stretch. The result is 14.75 bhp at 8,000 rpm and 13.9 Nm of torque at 6,500 rpm - the most powerful CVT scooter you can buy under Rs 1.5 lakh in India.

The CVT gearbox is impressively smooth. There's none of the rubber-band hesitation that plagues cheaper automatics - twist the throttle at any speed from 20 to 100 km/h and the Aerox responds immediately. The Smart Motor Generator (SMG) system doubles as both a starter motor and a generator, contributing to smooth stop-start behaviour in city traffic.

At 126 kg kerb weight with a 790mm seat height, the Aerox is accessible to most Indian riders. The 14-inch alloy wheels run 110/80-14 front and 140/70-14 rear tubeless rubber - a wider contact patch than most scooters, which contributes to the planted cornering feel. The 1,350mm wheelbase and 145mm ground clearance strike a useful balance between stability and urban manoeuvrability.

Braking comes from a 230mm front disc with single-channel ABS and a 130mm rear drum. The front disc setup is competent for the performance level, though seasoned riders will wish for a rear disc. The Version S adds a Traction Control System (TCS) that modulates wheelspin during aggressive acceleration on slippery surfaces - a useful safety net, especially on rain-wet roads.

The 24.5L underseat boot is genuinely class-leading - it swallows an XL full-face helmet, a laptop bag, and a jacket without protest. External fuel filling means you never have to lift the seat to refuel. The 5.5-litre tank, combined with the 40 kmpl ARAI mileage claim, gives a theoretical range of around 220 km between stops.