Packaging and Delivery
Packaging Details: standard package of electric bicycle
Delivery Time: 7-15days after payment

Our Company
We at CZPT are a dedicated team with many years of combined experiences in the field of electric bicycles. Our product line covers various electric bikes, electric bike conversion kits, and relative parts for electric bicycles. 
We are located in HangZhou city ,ZheJiang ,China.  We are just 1 hour from ZheJiang by high-speed train . 
Our factory is certified by CE, SGS, CCC, EEC and other related certifications. Our products are reliable and durable. We export to Europe, the USA, Canada, Southeast Asia, Australia and many other countries . At CZPT we always pay close attention to good customerservice and a logical service.

FAQ:
Q: What is the electric bike conversion kit?
A: The kit is designed to transform your standard bicycle(manual pedal power)to an electric-powered by a motor and battery pack. 

Q: Will the conversion kit fit my bicycle?
A: The conversion was designed to fit 90% of the bicycles, and you can check your bicycle fork(the 2 metal pieces that attach the wheel to the bicycle) to be sure. You will need at least 100mm for front wheel and 135mm for rear wheel.

Q: If my bicycle meet your standard, how can I choose to install front wheel or rear wheel motor?
A: A front hub kit is normally much easier to install than a rear wheel kit since you don’t have to worry about gearing or derailers. When riding, the rider can easily see the front wheel and respond quickly to problems such as wheel spinning.
Rear wheel drive has the advantage of better traction which is great for hills and inclines. And because the rear frame dropouts are normally stronger than the front fork dropouts, a rear wheel can handle more torque and increased power. 
 
Q: How fast will it go?
A: The speed would be decided by the motor power, controller and battery spec. According to different countries rules, we provide 25km/h for EU and AU market, provide 30km/h for other market.

Q: How far can I go on 1 charge?
This varies depending on usage, your specification will affect the your battery performance and life. And mostly of the battery have a cycle life of more than 700charges.

Q: Do I have to pedal to assist the motor?
A: There are 2 kinds of modes available, throttle controller and pedal assist.
Throttle controller means you use a throttle to control power and speed. To get started, simply twist the throttle to accelerate and hold it to maintain speed.
Pedal assist means once you start peHangZhoung, a torque sensor picks up your movement and power integrates seamlessly while you ride. Just pedal and go. Once you use the brakes or quit peHangZhoung, the power is deactivated and you need to pedal again (lightly) to re-activate pedal assistance.

Q: How long does it take to recharge the battery?
A: usually it takes 4-6 hours.

Q. When should I recharge batteries?
A. The battery can be charged after every ride. We do recommend that every 20th charge that you run the battery flat and give it a full charge.

Q: How should I store my battery?
A: Store in cool dry place, you should fully charge your battery before storing it.

Q: How can I get the best battery performance and range?
A: Pedal while the motor is on, start the motor after the bike is moving, use the motor mainly to climb hills, and don’t use the motor while you are going downhill.

How to Replace the Drive Shaft

Several different functions in a vehicle are critical to its functioning, but the driveshaft is probably the part that needs to be understood the most. A damaged or damaged driveshaft can damage many other auto parts. This article will explain how this component works and some of the signs that it may need repair. This article is for the average person who wants to fix their car on their own but may not be familiar with mechanical repairs or even driveshaft mechanics. You can click the link below for more information.

Repair damaged driveshafts

If you own a car, you should know that the driveshaft is an integral part of the vehicle’s driveline. They ensure efficient transmission of power from the engine to the wheels and drive. However, if your driveshaft is damaged or cracked, your vehicle will not function properly. To keep your car safe and running at peak efficiency, you should have it repaired as soon as possible. Here are some simple steps to replace the drive shaft.
First, diagnose the cause of the drive shaft damage. If your car is making unusual noises, the driveshaft may be damaged. This is because worn bushings and bearings support the drive shaft. Therefore, the rotation of the drive shaft is affected. The noise will be squeaks, dings or rattles. Once the problem has been diagnosed, it is time to repair the damaged drive shaft.
Professionals can repair your driveshaft at relatively low cost. Costs vary depending on the type of drive shaft and its condition. Axle repairs can range from $300 to $1,000. Labor is usually only around $200. A simple repair can cost between $150 and $1700. You’ll save hundreds of dollars if you’re able to fix the problem yourself. You may need to spend a few more hours educating yourself about the problem before handing it over to a professional for proper diagnosis and repair.
The cost of repairing a damaged driveshaft varies by model and manufacturer. It can cost as much as $2,000 depending on parts and labor. While labor costs can vary, parts and labor are typically around $70. On average, a damaged driveshaft repair costs between $400 and $600. However, these parts can be more expensive than that. If you don’t want to spend money on unnecessarily expensive repairs, you may need to pay a little more.

Learn how drive shafts work

While a car engine may be 1 of the most complex components in your vehicle, the driveshaft has an equally important job. The driveshaft transmits the power of the engine to the wheels, turning the wheels and making the vehicle move. Driveshaft torque refers to the force associated with rotational motion. Drive shafts must be able to withstand extreme conditions or they may break. Driveshafts are not designed to bend, so understanding how they work is critical to the proper functioning of the vehicle.
The drive shaft includes many components. The CV connector is 1 of them. This is the last stop before the wheels spin. CV joints are also known as “doughnut” joints. The CV joint helps balance the load on the driveshaft, the final stop between the engine and the final drive assembly. Finally, the axle is a single rotating shaft that transmits power from the final drive assembly to the wheels.
Different types of drive shafts have different numbers of joints. They transmit torque from the engine to the wheels and must accommodate differences in length and angle. The drive shaft of a front-wheel drive vehicle usually includes a connecting shaft, an inner constant velocity joint and an outer fixed joint. They also have anti-lock system rings and torsional dampers to help them run smoothly. This guide will help you understand the basics of driveshafts and keep your car in good shape.
The CV joint is the heart of the driveshaft, it enables the wheels of the car to move at a constant speed. The connector also helps transmit power efficiently. You can learn more about CV joint driveshafts by looking at the top 3 driveshaft questions
The U-joint on the intermediate shaft may be worn or damaged. Small deviations in these joints can cause slight vibrations and wobble. Over time, these vibrations can wear out drivetrain components, including U-joints and differential seals. Additional wear on the center support bearing is also expected. If your driveshaft is leaking oil, the next step is to check your transmission.
The drive shaft is an important part of the car. They transmit power from the engine to the transmission. They also connect the axles and CV joints. When these components are in good condition, they transmit power to the wheels. If you find them loose or stuck, it can cause the vehicle to bounce. To ensure proper torque transfer, your car needs to stay on the road. While rough roads are normal, bumps and bumps are common.

Common signs of damaged driveshafts

If your vehicle vibrates heavily underneath, you may be dealing with a faulty propshaft. This issue limits your overall control of the vehicle and cannot be ignored. If you hear this noise frequently, the problem may be the cause and should be diagnosed as soon as possible. Here are some common symptoms of a damaged driveshaft. If you experience this noise while driving, you should have your vehicle inspected by a mechanic.
A clanging sound can also be 1 of the signs of a damaged driveshaft. A ding may be a sign of a faulty U-joint or center bearing. This can also be a symptom of worn center bearings. To keep your vehicle safe and functioning properly, it is best to have your driveshaft inspected by a certified mechanic. This can prevent serious damage to your car.
A worn drive shaft can cause difficulty turning, which can be a major safety issue. Fortunately, there are many ways to tell if your driveshaft needs service. The first thing you can do is check the u-joint itself. If it moves too much or too little in any direction, it probably means your driveshaft is faulty. Also, rust on the bearing cap seals may indicate a faulty drive shaft.
The next time your car rattles, it might be time for a mechanic to check it out. Whether your vehicle has a manual or automatic transmission, the driveshaft plays an important role in your vehicle’s performance. When 1 or both driveshafts fail, it can make the vehicle unsafe or impossible to drive. Therefore, you should have your car inspected by a mechanic as soon as possible to prevent further problems.
Your vehicle should also be regularly lubricated with grease and chain to prevent corrosion. This will prevent grease from escaping and causing dirt and grease to build up. Another common sign is a dirty driveshaft. Make sure your phone is free of debris and in good condition. Finally, make sure the driveshaft chain and cover are in place. In most cases, if you notice any of these common symptoms, your vehicle’s driveshaft should be replaced.
Other signs of a damaged driveshaft include uneven wheel rotation, difficulty turning the car, and increased drag when trying to turn. A worn U-joint also inhibits the ability of the steering wheel to turn, making it more difficult to turn. Another sign of a faulty driveshaft is the shuddering noise the car makes when accelerating. Vehicles with damaged driveshafts should be inspected as soon as possible to avoid costly repairs.