BX70-DB Trailstar

2015 BamX BX70-DB Trailstar Technical Analysis & Specification Breakdown

Engineered by BamX for the minibike, cross motorcycle segment, the 2015 BamX BX70-DB Trailstar features a 72 cc (4.4 cu in) air-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 3.6 HP (2.6 kW) at 6,000 rpm while maximum torque reaches 4.2 Nm (3.1 lb-ft) at 5,500 rpm, transferring power to the rear wheel through a automatic gearbox and chain final drive. With a specific output of 50 HP per liter and a 500 rpm working window between peak torque (5,500 rpm) and peak power (6,000 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the BX70-DB Trailstar measures 49.9 kg (110 lbs) dry. Rider ergonomics and chassis geometry center around a 711 mm (28 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 991 mm (39 in) wheelbase engineered for quick, flickable steering geometry. The 4-liter (1.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's BamX archive, this model family spans 4 indexed model years from 2009 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.