TrailMaster TM31X PRO 250cc Dirt Bike 5-Speed Manual Dual Disc Brakes, Electric Start with Kick backup (19/16)

    The TrailMaster TM31X Pro 250 is a full-size off-road dirt bike designed for riders who want strong 250-class performance with reliable handling and modern features. Powered by a 223cc 4-stroke engine producing around 16 horsepower, this bike delivers smooth, usable power through a 5-speed manual transmission, making it ideal for trail riding, off-road terrain, and recreational motocross use.

    Built with a motocross-inspired chassis, the TM31X features a lightweight steel tube frame, inverted hydraulic front forks, and a rear spring shock system for improved stability and control. It also comes equipped with electric start plus kick-start backup, front and rear hydraulic disc brakes, and 19” front / 16” rear wheels for balanced handling across rough terrain. Some configurations also include lighting, mirrors, and a digital dashboard for added versatility.

Performance Specs:

• Engine Type: Zongshen CB250D-G, Single-Cylinder, 4-Stroke, Air-Cooled
• Displacement: 223cc
• Maximum Power: 12 kW / ~16 HP @ 7,000 RPM
• Maximum Torque: 17.5 Nm @ 5,500 RPM
• Compression Ratio: 9.3–9.9:1
• Transmission: 5-Speed Manual (1-N-2-3-4-5)
• Starting System: Electric Start & Kick Start Backup
• Ignition: Digital CDI
• Carburetor: PE28
• Drive System: #520 Chain Drive (13T / 47T sprocket setup)
• Front Suspension: Inverted Hydraulic Forks (150mm travel)
• Rear Suspension: 450mm Spring Preload Shock
• Front Brake: Dual Piston Hydraulic Disc (240mm)
• Rear Brake: Single Piston Hydraulic Disc (240mm)
• Front Wheel: 1.60 x 19 Aluminum Rim
• Rear Wheel: 2.15 x 16 Aluminum Rim
• Front Tire: 70/100-19
• Rear Tire: 90/100-16
• Frame: Lightweight Steel Tube Frame
• Swingarm: High-Strength Steel (560mm)
• Handlebar: Tapered Aluminum 6061
• Wheelbase: 53.1 in (1350 mm)
• Seat Height: 34.6 in (880 mm)
• Ground Clearance: 13 in (330 mm)
• Fuel Capacity: 2.0 gal (7.5 L)
• Overall Size: 78" x 32" x 45.7"
• Curb Weight: 297 lbs