Retrostar 250

2017 Sinnis Retrostar 250 Technical Analysis & Specification Breakdown

Positioned in Sinnis's allround motorcycle lineup, the 2017 Sinnis Retrostar 250 pairs a 249 cc (15.2 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 20.7 HP (15.1 kW) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 83.1 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the Retrostar 250 measures 130 kg (287 lbs) dry, translating to a power-to-weight ratio of 0.16 HP/kg (6.28 kg per horsepower). Rider ergonomics and chassis geometry center around a 770 mm (30.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 10-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Sinnis archive, this model family spans 2 indexed model years from 2016 to 2017, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.