
MXR 140 SEMI AUTO E-START MIDSIZE PLUS
Introducing the MXR 140 Semi Auto E-start & Kick Start 14×17 (34 INCH SEAT HEIGHT)
If you are looking for a mid size play bike that riders of every skill level with love, the MXR 140 is the perfect fit!
Featuring a smooth and easy to operate semi auto 4 speed transmission, long travel suspension, 14×17 track and trail friendly wheels.
No other bike on the market will build confidence and skill like the MXR 140.
$1,999.99
Available on backorder

Additional features include, performance exhaust system, airbox, ultraflex plastics.
- GPX Moto 140cc power plant
- Semi Auto 4 Speed
- E-start & Kick Start
- 22mm Carburetor
- HD Suspension
- Optional headlight available
- New floating caliper rear brake
- Oversized Rotors
- 1/4 Turn Throttle
MODEL | |
PITSTER PRO | MXR 140 14/17 |
MSRP | $1,999.99 |
ENGINE | |
Carburetor | 22 mm |
Clutch | Semi Auto 4 Speed |
Cooling | Air Cooled |
Gearing | 420/ 16T X 39T |
Lubrication | Oil bath |
Engine | Four stroke ZS 140cc SOHC |
Bore and Stroke | 56mm x 57mm |
Ignition | Stator/ CDI with lighting coil |
Compression Ratio | 9.5:1 |
Starter | Kick |
Transmission | Four speed HO Semi Auto clutch |
CHASSIS AND DIMENSIONS | |
Color | White |
Frame | Chromoly with cradle |
Fuel Capacity | 3.8 L |
Overall Length | 61" |
Overall Width | 27.5" |
Subframe | Chromoly, removable |
Wheelbase | 44.5" |
Seat Height | 34.5" |
Curb weight | 148.5 lbs |
Ground Clearance | 8.5" |
SUSPENSION | |
Front | GPX Hydraulic telescopic oil fork |
Rear | Chromoly, single shock w/ adjustable preload |
Swingarm | Pro style |
Travel | 5 Inches Front / 5 Inches Rear |
WHEELS AND TIRES | |
Front Tire | 2.50 X 17 (60-100/17) |
Front Wheel | 1.40 x 17" |
Rear Tire | 3.00 x 14 (80-100/14) |
Rear Wheel | 1.85 x 14" |
BRAKES | |
Front Brake | 190mm W-Style Rotor W/ Floating Caliper |
Rear Brake | 190mm W-Style Rotor W/ Floating Caliper |
ADDITIONAL FEATURES | |
3m graphics package | Standard |
Head Light & Tail Light | Included |
Kick Stand | Standard (removable) |
Pro style handle bar pad | Standard |
Replica graphics | Available |
Skid plate and Frame Guards | Standard (removable) |
Triple Clamps | Alloy |
BUILD-A-BIKE OPTIONS | |
Air filter and Intake | K&N or UNI Pod Filter |
Clutch and Brake Levers | ASV Lever Sets |
Custom Graphics | |
Big Bore Kits | Big Bore Kit Options |
FEATURES NOT FOUND ON OUR COMPETITION | |
Carburetion jetting kit | Standard |
Engine Skid Plate | Standard |
Gripper seat cover | Standard |
High Flow Air Filter | Standard |
Integrated air box | Standard |
Nylon chain sliders and chain guide | Standard |
Oversized SPX Stainless Steel Footpegs | Standard |
Stainless Steel Fasteners | Standard |
Taper steering bearings w/ dust covers | Standard |
Ultra flex plastics | Standard |
3 reviews for MXR 140 – SEMI AUTO
Additional Information
Weight | 148.5 lbs |
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MXR 140 SEMI AUTOMATIC MANUALS & DIAGRAMS
Download the parts lists and manuals available for the MXR 140.
MXR 140 Diagram
GPX Moto Pit Bike Owner’s Manual.pdf
Download the above documents by clicking the file names.
NOTE FOR CUSTOMERS: All product-related downloads will be available immediately on the order confirmation page, and will be available in your GPXMoto.com account indefinitely. They will also be emailed immediately after purchase as a .zip file.
!!!WARNING!!!
THIS MOTORCYCLE IS A COMPETITION MODEL ONLY AND IS NOT MANUFACTURED FOR, NOR SHOULD BE USED ON PUBLIC STREETS, ROADS OR HIGHWAYS. THE USE OF THIS MOTORCYCLE SHOULD BE LIMITED TO PARTICIPATION IN SANCTIONED COMPETITION EVENTS UPON A CLOSED COURSE AND SHOULD NOT BE USED FOR GENERALOFF-ROAD RECREATIONAL RIDING. IT IS INTENDED FOR EXPERIENCED RACERS ONLY, NOT FOR BEGINNERS.
Dustin –
“I HAVE A PITSTER PRO 140. ITS MANUAL CLUTCH . JUST GOT IT AND LOVE IT!”
Dustin –
“I HAVE A PITSTER PRO 140. ITS MANUAL CLUTCH . JUST GOT IT AND LOVE IT!”
Dustin –
“I HAVE A PITSTER PRO 140. ITS MANUAL CLUTCH . JUST GOT IT AND LOVE IT!”