
MEET THE MXR 155
MXR 155 Four Stroke mini bike is a great way to step up to a manual clutch.
The powerful 155 high output four speed transmission and great suspension make the MXR 155 a perfect bike for any rider.
Designed with big bike features in a compact and light weight chassis.
$2,099.99
20 in stock

Check out the specification link for more details and list of standard features.
- GPX Moto 155cc power plant
- 26mm Carburetor
- HD Suspension
- Manual clutch four speed
- New floating caliper rear brake
- Oversized Rotors
- 1/4 Turn Throttle
MODEL | |
PITSTER PRO | MXR 155 |
MSRP | $2,099.99 |
ENGINE | |
Clutch | 6 plate HD |
Cooling | Air Cooled |
Electronic Fuel Injection | Stator/ CDI with lighting coil |
Gearing | 420/ 16T X 39T |
Lubrication | Oil w/cooler |
Max Output | 13.5 HP |
Engine | Four stroke ZS 155cc High Output SOHC |
Bore and Stroke | 60mm x 55mm |
Ignition | Stator/ CDI |
Compression Ratio | 9.5:1 |
Starter | Kick start |
Transmission | Four speed HO manual clutch |
CHASSIS AND DIMENSIONS | |
Color | White |
Frame | Chromoly with cradle |
Fuel Capacity | 1 gallon |
Overall Height | 40 inches |
Overall Length | 61 inches |
Overall Width | 28 inches |
Wheelbase | 44.5 inches |
Seat Height | 32 inches |
Curb weight | 144.5 lbs |
Ground Clearance | 8.5" |
SUSPENSION | |
Front | GPX Hydraulic telescopic oil fork |
Rear | Chromoly, single shock w/ adjustable preload |
Swingarm | Pro style |
WHEELS AND TIRES | |
Front Tire | 2.50 X 14 (60-100/14) |
Front Wheel | 1.40 x 14" |
Rear Tire | 3.00 x 12 (80-100/12) |
Rear Wheel | 1.85 x 12" |
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 |
CNC Billet Engine and Fuel Cap Dress Up Kit | Optional |
Digital Speedo W/ Trip Odometer | Standard (removable) |
Hand Guards | Standard (removable) |
Kick Stand | Standard (removable) |
Pro style front number plate | Included |
Racing number plates | Included |
Skid plate and Frame Guards | Standard (removable) |
Taper Handle Bars 7061 | Standard |
BUILD-A-BIKE OPTIONS | |
Custom Graphics | Optional |
FEATURES NOT FOUND ON OUR COMPETITION | |
Brake Disc Guard and Caliper Guard | Standard |
Gripper seat cover | Standard |
High Flow Air Filter | Standard |
Rim lock | Standard |
Stainless Steel Fasteners | Standard |
Taper steering bearings w/ dust covers | Standard |
Ultra flex plastics | Standard |
5 reviews for MXR 155
Additional Information
Weight | 144.5 lbs |
---|---|
Dimensions | 61 × 28 × 40 in |
MXR 155 MANUALS & DIAGRAMS
Download the parts lists and manuals available for the MXR 155.
GPX Moto MXR 155 Wiring Diagram
155_Engine_parts_diagram
MXR140_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.
Teddy R. –
“this bike rips! only problems are the suspension forks aren’t possible to adjust, other than that no complaints!!”
P. Jackson –
“Get this bike! So easy and fun for my 3 acre property and small Bumpy nearby trail. I’m 240 lbs and it still rips!”
Britney W. –
“I love this little bike, I wanted something to run around with my kids at the track, now my kids want to ride it more than me!”
Zach W. –
“Love the 155 motor! tons of power and the suspension is perfect fro my 170lbs!”
H. Grant –
“The MXR 155 has great power! My son has no trouble keeping up with me on this bike!”