RUNFAST TM High Performance 2-stroke 48cc/49cc/50cc Motorized Bike ENGINE ONLY With Nasty Jack High Performance Power Expansion Chamber FOR MOTORIZED BICYCLE
RUNFAST TM High Performance 2-stroke 48cc/49cc/50cc Motorized Bike ENGINE ONLY With NASTY JACK HIGH PERFORMANCE Power Expansion Chamber FOR MOTORIZED BICYCLE
BENEFITS OF THE RUNFAST TM 2-stroke 48cc Motorized Bike ENGINE ONLY FOR MOTORIZED BICYCLES:
-ENGINES ARE ASSEMBLED IN THE USA FOR ENHANCED INSPECTION AND QUALITY ASSURANCE.
-HUGE 40mm INTAKE FOR MONSTER GAS/AIR FLOW
-WIDER 40mm FRONT MOUNT FOR EASIER FITTING!
-SUPER RUGGED THICK 8mm FRONT AND REAR MOUNTING STUDS!
-UPGRADED MEGA MAGNET ROTOR MUCH STRONGER THAN STANDARD ENGINES FOR EXTREME PERFORMANCE!
-FANTASTIC FUEL MILEAGE OF 100 MPG
-SIMPLE PEDAL, POP THE CLUTCH, TURN THE THROTTLE, AND GO STARTING ACTION.
-PEDDLE/MOTORIZE ANYTIME YOU WANT.
-MEGA HOT MOTORIZED BIKE SPARK PLUG
MOTOR MOUNTING COMPONENTS AND HARDWARE
WHY RUNFAST IS THE HIGHEST QUALITY MOTORIZED BIKE ENGINE IN THE WORLD
Heavier, stronger magnet rotor for more power! Other cheap bike engines use weaker, less powerful magnet rotors. Feel the difference!
Thicker, stronger, longer, stronger magneto cable wires for improved power transfer and better reach.
Heavier, thicker cylinder bodies and crank case for strength and durability!
Heavy duty metal engine for added strength and durability
Wider front mount for better bike fitting accommodations of all bikes
Front and rear mounting studs are rugged thick 8mm. Cheap low quality kits use thin, brittle studs that break off.
Enhanced universal motor mount clamp bracket for seamless bike tube front mounting.
High quality advanced u-bolt 8mm universal motor mount plate 8.8 grade 8mm bolts and nuts for ultra hold and grip
High grade 8.8 standard for all bolting hardware. The low quality cheap kits use 4.4 grade that strip threads easily.
Ungraded nylon insert lock nuts to prevent loosening. Low quality cheap bike engine kits use standard nuts that loosen over time
Balanced, heavy duty quality crank assembly with smooth rides.
Longer camshaft arms for easier disengagement
Superior, longer clutch handle lever with correct (not inferior locking lever)
Higher quality throttle grips that beat the low quality cheap brittle plastic connections that break after the first ride
Higher quality, thicker bevel gear grease for superior lubrications
Super wide 40mm intake for optimal air/gas flow. Cheap low quality kits use narrow 32mm intakes for inferior flow and weak running.
Superior hardened steel bucking bar for ultimate durability every time you need to disengage the clutch. Cheap low quality kits use cheap, low quality metal bucking bars that quickly wear down preventing proper clutch disengagement.
We at Runfast build and ride motorized bikes and demand the highest quality components direct from the manufacturer. Every detail counts. The cheap low quality bike engine kits don’t care and don’t understand the details that make a quality motorized bike engine kit.
With better qualities you save yourself from the headaches of cheap trash breaking down. That’s priceless.
- Super fuel-efficient, only consuming 2.5 litre fuel per 100km
- Fast and powerful!
- Comes with all needed hardware for easy installation
- Fit for most type 26" and 28" and 29” bikes, such as mountain bikes, road
bikes and cruisers.
- Mode of Engine:Single cylinder, air-cooling, 2-stroke
- Ignition Mode:CDI
- Driving Ratio:18:01
- Fuel Type:No.90
- Lubrication Oil: oil of 2-stroke petrol engine (2-Cycle )
- Mixing Ratio of Fuel and engine Oil:5 oz oil per 1 gallon gas for new sets, 4 oz oil per 1 gallon after running 500km
- Type of Sparking Plug:Z4C 14MM
- Volume of oil Consumption:2.5L/100km
- Type of Clutch:Friction Plate / Dry
- Cooling Mode:Natural air cooling
- 1x 48cc 2-stroke engine(the putt is bent)
- 1x NASTY JACK HIGH PERFORMANCE Power Expansion Chamber
- 1x Manual
- All the needed mounting brackets, gaskets, and hardware
- Please also keep in mind that the motor will use a mix of gasoline and 2-cycle oil. The oil is used as a lubricant. Without it, the performance and longevity of the motor will be reduced. Please refer to the manual for further information including gasoline/oil ratios.
- If you have any questions,please contact us for technical solutions.
1.PO BOX address is 100% acceptable. Please make sure the address is correct before you pay.
2.We have warehouses in the USA. Estimated Delivery 2-4 business days to major locations,4-8 business days to remote areas.
3.Order information changed or cancelled must be done within 1 hour after the payment.Otherwise the order will be prepared to ship out.
If your item is received in a condition other than described, please contact us for an immediate solution.
1.If you have any question or concern, please do not hesitate to contact our customer support team.
2.E-mails are answered Monday through Sunday. Please allow up to 8 hour for a response to your message because we might be sleeping.
PHONE SUPPORT FOR CUSTOMERS
LET US HELP GET YOU STARTED ON THE ROAD TO FUN AND EXCITEMENT WITH MOTORIZED BICYCLING!
UPON PURCHASE YOU AGREE TO THE TERMS AND CONDITIONS AS STATED AT U-MOTO MOTORIZED BICYCLES WEBSITE. ALSO INCLUDED IN PACKAGE.
ASSEMBLE, RIDE AND USE AT OWN RISK.
ASSEMBLY AND MOTOR INSTALLATION REQUIRED. FOLLOW INSTRUCTIONS
(NOTE: UPON PURCHASE YOU ACCEPT AND AGREE TO THE TERMS AND CONDITIONS AS STATED. CONTACT US FOR FOR MORE INFORMATION.)
WARNINGS AND PRECAUTIONS:
RIDING A MOTORIZED BICYCLE CAN BE DANGEROUS AND HAS THE POTENTIAL TO CAUSE SERIOUS INJURY AND EVEN DEATH. AN OPERATOR OF MOTORIZED BICYCLES, PRODUCTS, AND SERVICES INSTALL/ASSEMBLE/RIDE AT HIS/HER OWN RISK. AS THE PURCHASER YOU UNDERSTAND AND ACCEPT ALL AND ANY SEEABLE AND UNFORSEEABLE RISKS BASED ON MAINTENANCE, STRUCTURAL INTEGRITY, OPERATION, WEATHER, ROAD CONDITIONS, TRAFFIC, ETC. IT IS STRONGLY ENCOURAGED THAT A TRAINED MECHANIC INSPECT ALL ASPECTS OF THE MOTORIZED BICYCLE BEFORE RIDING TO CONFIRM SUITABILITY. CUSTOMERS WHO ARE NOT MECHANICALLY INCLINED OR UNFAMILIAR WITH MOTORIZED BICYCLES ARE STRONGLY ADVISED TO SEEK HELP BEFORE ATTEMPTING TO MAINTAIN, FIX, OR INSTALL ANY ASPECT OF A MOTORIZED BICYCLE.
NOTE: IT IS THE RESPONSIBILITY OF THE BUYER TO PROPERLY REINFORCE AND ATTACH ANY ADDED FENDERS BEFORE RIDING. THIS INCLUDES THE ADDITION OF HEAVY-DUTY STRAPS, SUPPORT SCREWS, THREAD LOCK, AND PRESSURE-DISTRIBUTING WASHERS. FENDERS THAT ARE NOT PROPERLY REINFORCED CAN BREAK AT THE CONNECTIONS AND FALL INTO THE WHEELS. THIS CAN LEAD TO SERIOUS ACCIDENTS, INJURIES AND EVEN DEATH.
IT IS STRONGLY ADVISED THAT CUSTOMERS WHO WANT TO FULLY REMOVE THIS RISK OF POTENTIAL DANGER RIDE THE MOTORIZED BICYCLE WITHOUT THE USE OF FENDERS.
WHEN OPERATING A MOTORIZED BICYCLE ALWAYS:
Use front and rear lights when riding at night.
Wear a properly-mounted and fastened bicycle or motorcycle helmet.
Wear bright and conspicuously-colored clothing.
Wear gloves, pants, and closed-toed shoes.
Travel at the lowest speed possible (NO MORE THAN 10-15 MPH) to avoid serious accidents, injuries and death.
Obey all state and city traffic laws, ordinances and, speed limits on and off the road.
Practice riding the motorized bicycle in an open area free from traffic to become familiar with motorized riding.
Plan out and use a safe route to ride where traffic is at a minimum.
Be aware of the traffic while riding on the road and use caution especially when merging, making left turns, and moving through intersections.
Inspect the motorized bicycle before riding and make any necessary adjustments and/ or repairs.
Maintain the motorized bicycle on a regular basis to ensure its integrity and proper functionality.
Use caution when dealing with gasoline. It is volatile, flammable and combustible. Do not smoke when operating a motorized bicycle.
UPON PURCHASE OF ANY MOTORIZED PRODUCT AND/OR SERVICE YOU AGREE TO AND ACCEPT THE TERMS AND CONDITIONS AS STATED.
UPON PURCHASE YOU AGREE TO THE TERMS AND CONDITIONS AS STATED MOTORIZED BICYCLES WEBSITE ALSO INCLUDED IN PACKAGE. PURCHASER AND USER OF THIS ITEM MUST BE 18 YEARS OF AGE OR OLDER. CHILDREN AND MINORS UNDER 18 YEARS OF AGE SHALL NOT PURCHASE NOR OPERATE. IF YOU DO NOT READ AND AGREE TO THE TERMS, WARNINGS, PRECAUTIONS, AND INSTRUCTIONS, INCLUDED IN THE WEBSITE, THIS LISTING AND THE PACKAGE FOR ANY REASON DO NOT USE THIS PRODUCT.
WHEN OPERATING A MOTORIZED BICYCLE ALWAYS:
Use front and rear lights when riding at night.
Wear a properly-mounted and fastened bicycle or motorcycle helmet
Here are the specs of the standard motorized bike kit THAT THE CHEAP COMPETITORS SELL.
They do not compare to the high quality of RUNFAST USA.:
Promote your bicycle performance by refitting! Maybe you need a new engine for more wonderful riding experience! So lucky for you to meet our IE47FA 80cc Bike Refit Engine Riding Assistant! As to this item, it adopts first-rate steel material, of great strength and hardness for endurance. It comes with fuel tank, silencer, electronic igniter and other accessories for convenient operation. All these gadgets are ensured for high quality and reliability. It is quite easy to refit your bicycle. Take action here!
1.A complete engine kit for converting your bike
2.Heavy duty metal engine body for added durability
3.Comes with all needed hardware for easy installation
4.Fit for most type 24",26"and 28"
- Engine Mode: Single Cylinder, Air-cooling, 2-stroke
- Chain Length: 110 links,55 inches
- Rated Power: 2.5Kw/5000r/min(3 horsepower/5000r/min)
- Max. Power: 3.5Kw/6000r/min(5-6 horsepower/6000r/min)
- Ignition Mode: CDI
- Compression Ratio: 6:01
- Driving Ratio: 18:01
- Fuel Type: No.90
- Type of Sparking Plug: Z4C 14MM
- Fuel Consumption: 120-170 MPG
- Type of Clutch: Friction Plate / Dry
- Speed Limitation:38km/hour
- Color: Silver
- Lubrication Oil: Motorcycle Synthetic 2 Stroke Oil
- Mixing Ratio of Fuel and Engine Oil: 16:1 for Break Period(First 300 Miles), 25: 1 after
- Net Weight: 23.15 lbs / 10.5 kg
- Suitable for: 24",26" or 28" Bicycle
1x 80cc 2-stroke engine
1x Ignition coil & CDI
1x Throttle handlebar set
1x Throttle cable
1x Clutch cable
1x Kill switch
1x Clutch lever
1x Chain cover
1x 44T Sprocket W/ 9 Hole Clamp Pads
1x Chain Tensioner
1x Fuel tank, Fuel filter
1x Gasoline fuel line
All the needed mounting brackets, gaskets, and hardware