Trailmaster TM31 250 Pro Dirt Bike

TrailMaster TM31 250 Pro Dirt Bike – Trail Dominator with Exceptional Value

Equipped with a Zhongshen 223 cc air-cooled 4-stroke engine, the TM31 generates approximately 16 hp, delivering smooth, reliable acceleration. It reaches a top speed of around 55–60 mph, making it as capable on wide-open trails as it is on tight singletrack . Cherry-picked to balance power with efficiency, the engine uses a PE28 carburetor and digital CDI ignition for quick starting and consistent performance  .

Starting is a breeze with both electrical and kick-start systems, while the 5-speed manual wet multi-plate clutch and chain-drive #520 transmission give riders confidence and control .

Chassis, Suspension & Handling

Built on a lightweight steel tube frame with a 53.1″ wheelbase, the TM31 balances agility and stability  . This dirt bike features inverted hydraulic front forks (Φ51/Φ54 mm inner/outer tubes) with 150 mm travel, paired with a rear swingarm and 450 mm spring-preload shock, delivering performance comparable to higher-end bikes  .

Whether jumping, cornering, or tackling rough trails, this suspension setup absorbs bumps and keeps riders in command.

Braking, Wheels & Tires

Safety and control come standard with 240 mm hydraulic disc brakes, featuring a dual-piston front caliper and single-piston rear, providing dependable stopping power   . The bike rides on 19″ front and 16″ rear aluminum rims, paired with 70/100-19 front and 90/100-16 rear tires, offering solid traction on varied terrain  .

Ergonomic Design & Rider Features

With a seat height of 34.6″, the TM31 is suited for a wide range of riders. It includes tapered aluminum handlebars, a digital dashboard, and LED headlight, taillight, and turn signals, enhancing visibility and usability  . The sporty roll cage styling, available in red, orange, or green, ensures it looks as good as it performs  .

Fuel & Dimensions

The robust 2-gallon fuel tank supports extended trail time, while a generous 13″ ground clearance helps clear obstacles  . The bike weighs in around 231 lb (dry), 297 lb loaded, and measures approximately 78″ L × 32″ W × 45.7″ H, offering a strong, agile platform  .

Built for Value, Made to Explore

TrailMaster backs the TM31 with a 6-month/6,000-mile engine warranty and 3-month parts coverage, ensuring peace of mind for value-conscious buyers . This dirt bike packs premium features—like electric start, inverted forks, and competitive power—into a budget-friendly package that appeals to recreational riders.

Why It’s a Smart Ride

The TM31 250 Pro is not only powerful—it’s practical and reliable. It offers low maintenance, efficient fuel use, and excellent parts availability, making it a smart investment for both new and experienced riders. It’s a bike built to be ridden hard—and to hold its value over time.

Product Highlights At a Glance

• Engine: 223 cc 4-stroke air-cooled, ~16 hp

• Start System: Electric + Kick

• Transmission: 5-speed manual with wet clutch

• Suspension: Inverted 150 mm front forks; 450 mm rear shock

• Brakes: Front dual-piston & rear single-piston disc

• Wheels/Tires: 19″ front / 16″ rear; 70/100 and 90/100 tire specs

• Seat Height: 34.6″; Ground Clearance: 13″

• Fuel Capacity: 2 gal

• Weight: 231 lb (dry); 297 lb (with fluids)

• Frame: Lightweight steel tube; Handlebars: Aluminum tapered

• Lighting: LED headlight, tail, turn signals

• Warranty: 6 months engine / 3 months parts