Trailmaster Challenger 4 150X Four-Seat 2X4 UTV Side by Side

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Trailmaster has introduced a new four-seat model to its UTV lineup for Side by Side fun for the whole family! The new Challenger 4 150X has all the upgrades from the original 150X SxS, including polished aluminum wheels, a windshield, front steel bumper, LED light bar, a trailer hitch, and more!

The 150X fits most youth easily, due to its individually adjustable sport seats and large cabin supporting people up to 6'2. The Challenger is also easily maneuvered by drivers of all skill levels with an automatic CVT tranny with reverse , powerful hydraulic disc brakes, and a new gear ratio set up offering more low-end torque for navigating rough terrain. Also featuring side mirrors, digital gauges, a large rear utility rack, and 4-point seat harnesses for added safety. EPA and CARB certified. Comes in a selection of different colors with awesome graphics!


Shipped Crated-Partial Assembly Required

 Note: NO sales Tax, Except Nevada.  (Nevada Law-All OHV vehicles in the state of Nevada must be titled/registered)

Available Fully Assembled and Pickup in Reno Nevada Only with a Free Extended Warranty.  Please call for details  775-856-3398    

 Important:***Go-Karts require an extensive amount of assembly. Typically it is recommended that you have a mechanic complete the assembly. Most Go-Karts available on our website require anywhere from 3-8 hours of shop time for assembly. Assembly generally involves, but is not limited to: installing wheels, role cage, bolting in seats, installing front/rear shocks and steering arms, installing fenders, securing rear swing arm, changing oil, adjusting carburetor and hooking up light wiring if applicable***





Availability: In stock


* Required Fields





  • Model: Challenger 4 150X
  • Engine: single cylinder, 4 stroke, air-cooled
  • Displacement: 150cc
  • Bore x stroke: 2.26x2.28 inches
  • Transmission: Automatic CVT with reverse
  • Shift Gear: Hand Shift
  • Final Drive: Chain
  • Max HP: 8.2hp/7500rpm
  • Max Torque: 7 lb ft/6000rpm
  • Max Speed: 25 mph
  • Climbing Ability: > 12 degrees
  • Starting system: Electric
  • Ignition: CDI
  • Battery: 12V/10Ah
  • Fuel capacity: 1.75 gal.
  • Brakes (Front/Rear): Hydraulic Disc / Hydraulic Disc
  • Tires (Front/Rear): 22x7-10 / 22x10-10
  • Suspension (Front/Rear): Independent Dual A-arm / Double Oil Damped Shock
  • Features: aluminum wheels, windshield, side mirrors, front steel bumper, LED light bar, horn, speedometer, odometer, turn signals, trailer hitch, 12V outlet, adjustable steering wheel, kill switch, four-point safety seatbelt, parking brake
  • Max load: 800 lbs.
  • Net Weight: 746 lbs.
  • Gross Weight: 880 lbs.
  • Wheelbase: 101.6 inches
  • Dimensions (LxWxH): 132x50x63 inches
  • Shipping Dimensions (LxWxH): 118x53x35 inches
  • Seat Height: 21 inches
  • Min ground clearance: 6.3 inches


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