RPS Full Size MX Viper 150cc Dirt Bike-OFF ROAD ONLY RPS   The RPS 150cc is fun and easy to operate: Its smooth four-stroke engine delivers plenty of power you can depend on, while the rugged suspension offers a great ride. Plus the Jet Moto's is a full size MX bike with awesome styling, smooth-shifting five-speed transmission, legendary performance and reliability that gets you ready to take for off-road riding anywhere you want to go.WATCH A SHORT VIDEO ABOUT THIS MODEL HERE!https://www.youtube-nocookie.com/embed/sk4S0neIrmoBig Power from the 149cc power plant.The 149cc four-stroke is perfect for beginning riders, yet offers plenty of power to keep experienced adults entertained all day long.A seat height of 32 inches makes this bike accessible to most riders, but more than 9 inches of ground clearance and long-travel suspension at both ends make it a serious trail bike as well.The Jet Moto model features an easy kick-starter, 19-inch and 16-inch wheels for great handling, a rugged swingarm and suspension and disc brake.149cc air-cooled SOHC four-stroke powerplant tuned for maximum off-road performance in any type of trail conditions.Japanese style carburetor ensures dependable performance.Smooth-shifting, five-speed transmission with heavy-duty clutch is geared for maximum power delivery.CDI ignition system is reliable and maintenance free.chain tensioner means minimal maintenance and longer engine life.CA customers: This item is NOT CARB approved, but you may use on your private land. Tech Specs Engine 4-Stroke149cc cooling air cooled Ignition Type  C.D.I Number of Cylinder 1 Compression Ratio  9.0:1 Bore and Stroke  69x53 Max Power[Kw/r/m]  9.5/8500 Max Torque[N.m/r/m]  10.0/6500 Starting Kick Gas Tank Capacity 1 Gallon Engine Oil Capacity[L]  1 Transmission Manual 5 -speed Drive System Type Chain Drive Tires Front 70/100-19 / Rear Size 90/100-16 Suspension Front Type Double shocks / Rear Mono shock Front Brake  Hydraulic Disc Rear Brake Hydraulic Disc  ProductDimensions Length 75.6" / Width 39.3" / Height 47" /Seat height 32.2" Dry Weight 220-lbs  Wheelbase 51.9" Weight Capacity  265-lbs Ground clearance 9.1" Color  Red/ Green/ Blue/ Black Warranty Our Company Warranty PoliciesYour satisfaction is our #1 goal. We strive to provide our customers with the highest level of customer service and support we can. We strongly suggest our customers read the following information thoroughly. If you have any questions about any of our or the manufacturers policies, please feel free to email us or call 1-877-667-6289.If you need parts at the bottom of our home page you will find “Parts Request or https://motobuys.com/pages/part-request = simply fill out the form and click submit.For Tech Support: https://motobuys.com/pages/technical-supports simply fill out the form and click submitTHE MANUFACTURERS WARRANTY COVERS PARTS, ENGINE ONLY FOR ALL PRODUCTS AS FOLLOWS:OFF ROAD: ATV'S, UTV'S, BUGGIES, GO CARTS AND DIRT BIKES offer 3 MONTHS PARTS, 6 MONTHS ENGINE WARRANTY, MOTOBUYS.com will supply new or rebuilt replacement parts in exchange for defective parts for a period of 3(three) months, as well defective engines for a period of 6(six) months from the date of purchase at no charge.Buyers will need basic repair & basic setup skills such as using tools; replacing nuts & bolts, filters, light bulbs, fluids, adjustments, etc. If you don’t have this ability we suggest using a mechanic to assist you with your needs. Our tech support Hotline is available to assist you.THIS LIMITED WARRANTY COVERS THE FOLLOWING PARTS ONLY:ENGINE: All internal lubricated parts, i.e. Pistons, piston rings, piston pins, connecting rods, rod bearings, camshaft, camshaft bearings, timing chain, crankshaft, crankshaft main bearings, oil pump, water pump, valves, valve springs, valve guides, valve seats, valve lifters and valve push rods. Additionally, the engine head and cylinder will only be covered if damage is caused solely as a result of the mechanical failure of one or more internal lubricated components listed above. (Broken gears any damage from outside impacted is not covered warranty)ENGINE CASE: The Engine case itself will only be covered if the damage caused was solely as a result of the mechanical failure of one or more of the internal lubricated components listed above. (Broken gears any damage from outside impact is not covered warranty)DRIVE SYSTEM: All internal lubricated parts contained within the drive axle housing case, i.e. differential, differential gears, drive shaft, drive axles, CV joints, axle bearings, reverse gears and output shafts. The drive axle housing as well as the reverse gearbox housing, if damaged solely as a result of the mechanical failure of one or more or the internal lubricated components contained the drive axle housing will be covered. (Any bent, broken, or damage by outside impact is not covered warranty)FUEL SYSTEM: For carburated vehicles; Carburetor, vacuum fuel pump, intake manifold, fuel tank and fuel petcock. For fuel injected vehicles; Fuel injectors, fuel pump, fuel rail and fuel pressure regulator.ELECTRICAL: Stator, stator pickup, magneto, voltage regulator\ rectifier, CDI, starter relay\ starter solenoid, starter motor, coil, distributor assembly and injector relay.COOLING SYSTEM: Radiator, radiator cap, thermostat, thermostat housing, temperature indicator switch, cooling fan motors; water pump and water pump housing.BRAKES: Calipers, drum housings, drum brake linkage, reservoirs, rotors, and lines.CHASSIS: Frame, swing arms, A-arms, steering controls, (if not caused by jumping or impact.)TRANSMISSION (Automatic or Standard): All internal lubricated parts contained within the transmission case, i.e. flywheel, hydraulic shift linkage, kick start spindle, kick start secondary gear and transmission gears. The transmission case itself will be covered if the damage was solely as a result of mechanical failure of one or more of the internal lubricated components contained within the transmission case. (Improper shifting of gears by not coming to stop complete can cause damage to internal gears. (""This cause is not covered warranty"")WHAT IS NOT COVERED: The following is a list of items not covered by the warranty policy. This list is not all inclusive and may be modified at any time. Batteries, Belts, Brakes and Brake Pads, Chains, Clutch, Foot peg mount, Hand Levers, Hoses, Lights, Mirrors, Plastic Body, Seats, Shocks, Spark Plugs, Tires, Transmission.COVERAGE AND LIMITATIONS: Initial assembly and preparation must be preformed in accordance with the Consumer Motor Vehicle Delivery Preparation and Inspection Form that is provided by the manufacturer. Additionally, all work must be performed by a professional mechanic (i.e. engine repair shop, motorcycle shop, or local auto repair shop) or an authorized Dealer of the manufacturer to assure your vehicle is in good working condition. Upon completion, you must mail in the Consumer Motor Vehicle Delivery Preparation and Inspection Form signed by the technician that performed the service. You will need to provide proof of this service when filing a warranty claim, so (end user) must keep your receipts. Subject to the limitations stated in this agreement,MOTOBUYS.com agrees (at its sole discretion) to replace a covered component if the covered component fails as a result of one or more of the internal lubricated parts within the component stated warranty period from the date of purchase, while the component has been used under the conditions and in the manner specified by its original manufacturer. Keep in mind these off-road units are built for recreational use only. Your claim may be denied under the following circumstances:Misuse or abuse of the vehicle, i.e.JumpingStunt ridingModification of any kindRacingRiding at constant wide open throttle (over revving the engine)Unit is used as a rentalDamage is caused by an accidentProduct is used in a manner that it is not designed forRider abuseImproper adjustment\operation of the clutch, i.e. dragging, causing premature burning of thefriction platesImproper adjustment\operation of brakes. Driving with parking brake on.Improper gear engagement, i.e. engaging reverse will moving forwardImproper maintainance, i.e.Lack of routine maintenanceRepairs performed improperly,Use of incorrect lubricantsImproper initial set upUse of aftermarket parts for repairThe following items are not covered: Tires, rims, body panels, fuses, forks, shocks, gaskets, light bulbs, seats, CV Boots, oil filter, air filter, fuel filter, filters, clutch wear parts, cables, drive belt, chain, spark plug, any part made from rubber, belts, brake linings and/or pads, batteries, sprockets, external springs, clips, nuts, bolts and fasteners.HANDLING OF WARRANTY CLAIMS:FOR PARTS: All Parts warranty issues must be processed through https://motobuys.com/pages/part-request  or if directed by the manufacturer. You must produce a copy of your original invoice showing the model number, vehicle identification number and date of purchase on the invoice, as well as a copy of your Consumer Motor Vehicle Delivery Preparation and Inspection Form to warranty your product directly. All defective parts must be returned to MOTOBUYS.com or the manufacturer as directed for inspection and verification of defect. MOTOBUYS.com reserves the right to decline any warranty claim based on the criteria listed in the COVERAGE AND LIMITATIONS portion of this warranty.FOR ENGINES: All Engine warranty issues must be processed through MOTOBUYS.com or if directed through the manufacturer of the unit purchased. In ether case, after obtaining an RMA number from MOTOBUYS.com, you will be provided with a return shipping label. The motor must be removed from the vehicle, safely packaged and shipped to our repair facility located at the address listed on the shipping label. MOTOBUYS.com or the manufacturer reserves the right to decline any warranty claim based on the criteria listed in the COVERAGE AND LIMITATIONS portion of this warranty. Documents [Viper-150 Kick Start Manual] [Viper-150 Electric Start Manual] [Viper-150 Vehicle Parts] [Viper-150 Engine Parts] [Viper-150 Assembly Video]
RPS Full Size MX Viper 150cc Dirt Bike-OFF ROAD ONLY

RPS Full Size MX Viper 150cc Dirt Bike-OFF ROAD ONLY

In Stock
MSRP: $1,499.00
$1,149.00
SAVE:$350.00
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We’ve got you covered! At MotoBuys, your satisfaction is our commitment. Enjoy peace of mind with manufacturer-backed warranties, including up to 12 months of engine coverage, ensuring your ride stays in top shape. Trailmaster products have 6-Month Parts Guarantee. Click here to see details
Got questions? We've got answers! From starting your ride to choosing the right gas or oil, our FAQ page has you covered with detailed explanations.

 

The RPS 150cc is fun and easy to operate: Its smooth four-stroke engine delivers plenty of power you can depend on, while the rugged suspension offers a great ride. Plus the Jet Moto's is a full size MX bike with awesome styling, smooth-shifting five-speed transmission, legendary performance and reliability that gets you ready to take for off-road riding anywhere you want to go.
WATCH A SHORT VIDEO ABOUT THIS MODEL HERE!
https://www.youtube-nocookie.com/embed/sk4S0neIrmo
Big Power from the 149cc power plant.
The 149cc four-stroke is perfect for beginning riders, yet offers plenty of power to keep experienced adults entertained all day long.
A seat height of 32 inches makes this bike accessible to most riders, but more than 9 inches of ground clearance and long-travel suspension at both ends make it a serious trail bike as well.
The Jet Moto model features an easy kick-starter, 19-inch and 16-inch wheels for great handling, a rugged swingarm and suspension and disc brake.
149cc air-cooled SOHC four-stroke powerplant tuned for maximum off-road performance in any type of trail conditions.
Japanese style carburetor ensures dependable performance.
Smooth-shifting, five-speed transmission with heavy-duty clutch is geared for maximum power delivery.
CDI ignition system is reliable and maintenance free.
chain tensioner means minimal maintenance and longer engine life.
CA customers: This item is NOT CARB approved, but you may use on your private land.

 

The RPS 150cc is fun and easy to operate: Its smooth four-stroke engine delivers plenty of power you can depend on, while the rugged suspension offers a great ride. Plus the Jet Moto's is a full size MX bike with awesome styling, smooth-shifting five-speed transmission, legendary performance and reliability that gets you ready to take for off-road riding anywhere you want to go.
WATCH A SHORT VIDEO ABOUT THIS MODEL HERE!
https://www.youtube-nocookie.com/embed/sk4S0neIrmo
Big Power from the 149cc power plant.
The 149cc four-stroke is perfect for beginning riders, yet offers plenty of power to keep experienced adults entertained all day long.
A seat height of 32 inches makes this bike accessible to most riders, but more than 9 inches of ground clearance and long-travel suspension at both ends make it a serious trail bike as well.
The Jet Moto model features an easy kick-starter, 19-inch and 16-inch wheels for great handling, a rugged swingarm and suspension and disc brake.
149cc air-cooled SOHC four-stroke powerplant tuned for maximum off-road performance in any type of trail conditions.
Japanese style carburetor ensures dependable performance.
Smooth-shifting, five-speed transmission with heavy-duty clutch is geared for maximum power delivery.
CDI ignition system is reliable and maintenance free.
chain tensioner means minimal maintenance and longer engine life.
CA customers: This item is NOT CARB approved, but you may use on your private land.

Engine 4-Stroke149cc
cooling air cooled
Ignition Type  C.D.I
Number of Cylinder 1
Compression Ratio  9.0:1
Bore and Stroke  69x53
Max Power[Kw/r/m]  9.5/8500
Max Torque[N.m/r/m]  10.0/6500
Starting Kick
Gas Tank Capacity 1 Gallon
Engine Oil Capacity[L]  1
Transmission Manual 5 -speed
Drive System Type Chain Drive
Tires Front 70/100-19 / Rear Size 90/100-16
Suspension Front Type Double shocks / Rear Mono shock
Front Brake  Hydraulic Disc
Rear Brake Hydraulic Disc
 ProductDimensions Length 75.6" / Width 39.3" / Height 47" /Seat height 32.2"
Dry Weight 220-lbs
 Wheelbase 51.9"
Weight Capacity  265-lbs
Ground clearance 9.1"
Color  Red/ Green/ Blue/ Black

Our Company Warranty Policies
Your satisfaction is our #1 goal. We strive to provide our customers with the highest level of customer service and support we can. We strongly suggest our customers read the following information thoroughly. If you have any questions about any of our or the manufacturers policies, please feel free to email us or call 1-877-667-6289.
If you need parts at the bottom of our home page you will find “Parts Request or https://motobuys.com/pages/part-request = simply fill out the form and click submit.
For Tech Support: https://motobuys.com/pages/technical-supports simply fill out the form and click submit
THE MANUFACTURERS WARRANTY COVERS PARTS, ENGINE ONLY FOR ALL PRODUCTS AS FOLLOWS:
OFF ROAD: ATV'S, UTV'S, BUGGIES, GO CARTS AND DIRT BIKES offer 3 MONTHS PARTS, 6 MONTHS ENGINE WARRANTY, MOTOBUYS.com will supply new or rebuilt replacement parts in exchange for defective parts for a period of 3(three) months, as well defective engines for a period of 6(six) months from the date of purchase at no charge.
Buyers will need basic repair & basic setup skills such as using tools; replacing nuts & bolts, filters, light bulbs, fluids, adjustments, etc. If you don’t have this ability we suggest using a mechanic to assist you with your needs. Our tech support Hotline is available to assist you.
THIS LIMITED WARRANTY COVERS THE FOLLOWING PARTS ONLY:
ENGINE: All internal lubricated parts, i.e. Pistons, piston rings, piston pins, connecting rods, rod bearings, camshaft, camshaft bearings, timing chain, crankshaft, crankshaft main bearings, oil pump, water pump, valves, valve springs, valve guides, valve seats, valve lifters and valve push rods. Additionally, the engine head and cylinder will only be covered if damage is caused solely as a result of the mechanical failure of one or more internal lubricated components listed above. (Broken gears any damage from outside impacted is not covered warranty)
ENGINE CASE: The Engine case itself will only be covered if the damage caused was solely as a result of the mechanical failure of one or more of the internal lubricated components listed above. (Broken gears any damage from outside impact is not covered warranty)
DRIVE SYSTEM: All internal lubricated parts contained within the drive axle housing case, i.e. differential, differential gears, drive shaft, drive axles, CV joints, axle bearings, reverse gears and output shafts. The drive axle housing as well as the reverse gearbox housing, if damaged solely as a result of the mechanical failure of one or more or the internal lubricated components contained the drive axle housing will be covered. (Any bent, broken, or damage by outside impact is not covered warranty)
FUEL SYSTEM: For carburated vehicles; Carburetor, vacuum fuel pump, intake manifold, fuel tank and fuel petcock. For fuel injected vehicles; Fuel injectors, fuel pump, fuel rail and fuel pressure regulator.
ELECTRICAL: Stator, stator pickup, magneto, voltage regulator\ rectifier, CDI, starter relay\ starter solenoid, starter motor, coil, distributor assembly and injector relay.
COOLING SYSTEM: Radiator, radiator cap, thermostat, thermostat housing, temperature indicator switch, cooling fan motors; water pump and water pump housing.
BRAKES: Calipers, drum housings, drum brake linkage, reservoirs, rotors, and lines.
CHASSIS: Frame, swing arms, A-arms, steering controls, (if not caused by jumping or impact.)
TRANSMISSION (Automatic or Standard): All internal lubricated parts contained within the transmission case, i.e. flywheel, hydraulic shift linkage, kick start spindle, kick start secondary gear and transmission gears. The transmission case itself will be covered if the damage was solely as a result of mechanical failure of one or more of the internal lubricated components contained within the transmission case. (Improper shifting of gears by not coming to stop complete can cause damage to internal gears. (""This cause is not covered warranty"")

WHAT IS NOT COVERED: The following is a list of items not covered by the warranty policy. This list is not all inclusive and may be modified at any time. Batteries, Belts, Brakes and Brake Pads, Chains, Clutch, Foot peg mount, Hand Levers, Hoses, Lights, Mirrors, Plastic Body, Seats, Shocks, Spark Plugs, Tires, Transmission.
COVERAGE AND LIMITATIONS: Initial assembly and preparation must be preformed in accordance with the Consumer Motor Vehicle Delivery Preparation and Inspection Form that is provided by the manufacturer. Additionally, all work must be performed by a professional mechanic (i.e. engine repair shop, motorcycle shop, or local auto repair shop) or an authorized Dealer of the manufacturer to assure your vehicle is in good working condition. Upon completion, you must mail in the Consumer Motor Vehicle Delivery Preparation and Inspection Form signed by the technician that performed the service. You will need to provide proof of this service when filing a warranty claim, so (end user) must keep your receipts. Subject to the limitations stated in this agreement,
MOTOBUYS.com agrees (at its sole discretion) to replace a covered component if the covered component fails as a result of one or more of the internal lubricated parts within the component stated warranty period from the date of purchase, while the component has been used under the conditions and in the manner specified by its original manufacturer. Keep in mind these off-road units are built for recreational use only. Your claim may be denied under the following circumstances:
Misuse or abuse of the vehicle, i.e.
Jumping
Stunt riding
Modification of any kind
Racing
Riding at constant wide open throttle (over revving the engine)
Unit is used as a rental
Damage is caused by an accident
Product is used in a manner that it is not designed for
Rider abuse
Improper adjustment\operation of the clutch, i.e. dragging, causing premature burning of the
friction plates
Improper adjustment\operation of brakes. Driving with parking brake on.
Improper gear engagement, i.e. engaging reverse will moving forward
Improper maintainance, i.e.
Lack of routine maintenance
Repairs performed improperly,
Use of incorrect lubricants
Improper initial set up
Use of aftermarket parts for repair
The following items are not covered: Tires, rims, body panels, fuses, forks, shocks, gaskets, light bulbs, seats, CV Boots, oil filter, air filter, fuel filter, filters, clutch wear parts, cables, drive belt, chain, spark plug, any part made from rubber, belts, brake linings and/or pads, batteries, sprockets, external springs, clips, nuts, bolts and fasteners.
HANDLING OF WARRANTY CLAIMS:
FOR PARTS: All Parts warranty issues must be processed through https://motobuys.com/pages/part-request  or if directed by the manufacturer. You must produce a copy of your original invoice showing the model number, vehicle identification number and date of purchase on the invoice, as well as a copy of your Consumer Motor Vehicle Delivery Preparation and Inspection Form to warranty your product directly. All defective parts must be returned to MOTOBUYS.com or the manufacturer as directed for inspection and verification of defect. MOTOBUYS.com reserves the right to decline any warranty claim based on the criteria listed in the COVERAGE AND LIMITATIONS portion of this warranty.
FOR ENGINES: All Engine warranty issues must be processed through MOTOBUYS.com or if directed through the manufacturer of the unit purchased. In ether case, after obtaining an RMA number from MOTOBUYS.com, you will be provided with a return shipping label. The motor must be removed from the vehicle, safely packaged and shipped to our repair facility located at the address listed on the shipping label. MOTOBUYS.com or the manufacturer reserves the right to decline any warranty claim based on the criteria listed in the COVERAGE AND LIMITATIONS portion of this warranty.

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Frequently Asked Questions

Check more frequently asked questions here. If you still need help, then please contact us at info@motobuys.com.

Customer Reviews

Based on 2 reviews
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M
Melissa M.
Great bike!

I’m thoroughly pleased with the Vyper RPS bike. My son is thirteen and was ready for a full sized bike- this was our pick to meet those needs. It’s big enough for it to last him many years of riding and has a good look to it too. Reliable bike, well built , and ran right out of the box. Would buy again.

H
Hayden D.
Rod viper

Bike is fast for the money but did not come with any assembly instructions.

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