Tag Archives: E-bike motors

Why are there so many variables to pedal-assist e-bike costs?

You may want to compare all kinds of features and components when looking at e-bike costs. First, consider the style of the e-bike you like. Will the bike help fulfill your transportation needs to justify the investment? Next, are there options for the battery and motor size, the warranty, and the weight? With that information gathered, you can expect to pay between $2,000 and $9,000, with some high-end carbon fiber models running as high as $15,000. So, look beyond price and the following questions.

What components on the electric bike make up the e-bike costs?

To help those just learning about e-bikes, we hope this article will help you justify the investment and fit your needs. Once the type of e-bike you are interested in is in sight, the next thing to consider is the motor and battery size options. Also, to rationalize the investment and cost, review the accessory components, including the display, throttles, PAS sensors, gearing, racks, etc.).

1. The Electric Motor

From a fundamental perspective, the motor on an electric bike transfers electrical energy into mechanical energy. All electric bike models use either a center or hub drive system. A crank/drive motor is located between pedals. With a hub motor it can be incorporated into the rear wheel, front, or both. The motor type plays a major role in the bike’s price, ride quality, and overall performance.

: A CENTER CRANK/DRIVE MOTOR SYSTEM ADDS MORE TO THE E-BIKE COST

: REAR HUB MOTOR SYSTEM ON AN ELECTRIC BIKE

Depending on how you will use the e-bike, a mid-drive motor generally accelerates faster, climbs better, and has a higher top speed but costs more. One more variable of the cost is the motor’s watt size. Depending on the model, your options may include either 250 watts, 350 watts, or 500 watts size, and here in the U.S., 750 watts is not uncommon.

2. The Battery

Before looking at the battery cost for the e-bike model you like, another question to ask yourself is, how far (range) will I ride regularly?

Because the battery is a large portion of the bike’s purchase price, it’s vital to consider the range or miles you can expect between charges. Having a general idea of the range will be very helpful in degerming the battery’s capacity. A very common rating is 36 volts and 10.5Ah. On this type of battery rating, you can get 20 to 40 miles per charge, depending on your riding style and how much you pedal. That’s an excellent baseline to start your selection for the battery.

HERE IS A BATTERY CONNECTED TO A FRONT WHEEL MOTOR HUB

General battery sizing guide to answer some of your e-bike questions

Here is an available guide listing some of the battery sizes to the riding distances you could expect under ‘normal’ riding conditions on a full charged:
· 36V 10.5Ah battery – 16 to 32 miles (26-51 km)
· 36V 17.5Ah battery – 25 to 52 miles (41-85 km)
· 48V 10.4Ah battery – 21 to 42 miles (34-68 km)
· 48V 14Ah battery – 30 to 56 miles (45-90 km)
· 52V 10.5Ah battery – 23 to 46 mph (37-74 km)
· 52V 17.5Ah battery – 40 to 76 mph (61-122 km)

*Please note: The above distances can vary greatly depending on the rider’s weight, hauling cargo, hills, temperature, and wind. And a rough rule of thumb to compare against manufacturer claims.

Battery Cost

Speaking of batteries, replacing them, or riding with a second battery can cost anywhere from $250 to $550. The price mainly relies on the amount of Wh or energy stored in the battery. Currently, that’s not bad since you hopefully only need to replace your battery every three to five years. Remember, the more well-maintained the battery is, the longer it’ll last.

Is a Warranty a part of the e-bike costs?

Please make sure you ask about what the warranty is for the bike you’re interested in. Be aware the coverage can vary for different parts of the cycle. Buying an electric bike is a significant investment. The warranty length is usually a good indicator of the quality of the bike and the company standing behind it. A 12, 24, or 36-month warranty on parts, motors, and the battery is reasonable to expect from most manufacturers (with no exclusions for regular use).

We hope these facts and options will open up specific questions you might want to ask when visiting the dealer and choosing your bike.

Bike Pic May 12, it might be time to test ride an e-bike?

Here in this bike pic, we see more and more people around the world looking at and taking an e-bike out for a test ride. For those who may need a little, electric assistance on their #NextBikeAdventure it may be time to visit your favorite bike shop and test ride an e-bike to continue your commute to work or for that next bike tour.

Get into the zone when continuing your time outdoors and your #NextBikeAdventure. View all the great ideas and bike destinations in the latest Iowa or Minnesota Bike/Hike Guide. Then plan your next outing with family and friends in one of Minnesota’s HaveFunBiking Destinations. And now, check out more stories at Let’s Do MN.

Thanks for viewing our latest bike pic

Now rolling through our 18th year as a bike tourism media, enjoy! As we pedal forward, our goal is to encourage more people to bike and have fun while highlighting all the unforgettable places for you to ride. As we continue to showcase more places to have fun, we hope the photos we shoot are worth a grin. Enjoy the information and stories we have posted as you scroll through.

Do you have a fun bicycle-related photo of yourself or someone you may know we should post? If so, please send your picture(s) to [email protected]. Include a brief caption (for each) of who is in the photo (if you know) and where the pic was shot? Photo(s) should be a minimum of 1,000 pixels wide or larger to be considered. If we use your photo, you will receive photo credit and acknowledgment on Facebook and Instagram.

As we continue to encourage more people to bike, please view our Destination section at HaveFunBiking.com for your #NextBikeAdventure. Also, check out the MN Bike Guide, now mobile-friendly as we enter into our 13th year of producing this handy information booklet full of maps.

Remember, bookmark HaveFunBiking.com on your cell phone and find your next adventure at your fingertips! Please share our pics with your friends, and don’t forget to smile. We may be around the corner with one of our cameras ready to document your next cameo appearance while you are riding and having fun. You could be in one of our next Pic of the Day.

Have a great day with a safe, and memorable year ahead!

Selecting the right type of electric bike motor for your style if riding

Electric bike motors have technically come a long way in the last few years. Typically these motors are located in three different areas of an e-bike. The first two locations are found in either the front or rear wheel, called hub motors. In recent years the center mount motor, in the crank area has gained in popularity.

Electric bikes wheels with hub motors

Rear motor system for an electric bike

The hub motor is in the center of either bicycle wheel, and for many years was the most common. This e-bike power source was known to be quieter. The biggest negative, if you are off-road, a hub motor doesn’t handle hills like a motor that’s directly connected to the crank.

Front motor system for an electric bike

E-bikes motors in the center crank area

Center motor system for an electric bike

Center crank motor system for an electric bike

Becoming more standard, the motor in the center crank/pedal area is at the bottom of the frame. It transfers the motor’s power to the rear wheel via the bicycle’s chain or belt. That means the electronic controls can include a sensor that detects how hard you’re pedaling. It can also measure the electric assistance needs, accordingly. Generally, a crank/drive motor will take advantage of your gears. Helping you to keep your weight distribution low and near the center of your bike, especially when climbing steep hills.

The voltage output of the electric bike motor you choose

When it comes to voltage output and power of the motor, here again, you need to assess your style of riding to figure out what is best. To meet government regulations, as a legal pedal-assist bike, the top speed is generally capped at 28 mph depending on the system. If you are riding relatively flat areas around town lower power motors may be enough when you only need a boost, from fatigue or headwinds. More power is best if you plan to tow a load or are a larger rider.

On the plus side, a higher voltage motor will allow you to extend your batteries life by drawing less current for the same amount of power, minimizing potential overheating problems. However, if you don’t need to sustain maximum power, a lower voltage system will work just fine and cost you less.

Overall, both motors have some unique advantages and disadvantages. So choosing the right power module for your e-bike will largely depend on your requirements and which advantages seem more useful to your needs. Generally, look for a brand with a good reputation, such as Bosch, Brose, Panasonic, Shimano, or Yamaha.

So first define your riding style to select the right motor for an electric bike. Then test ride several options as you narrow down your selection. Be sure to mark your calendar for the E-bike Challenge Minneapolis here. Or visit a couple of local bike shops in your area to define your choice.

E-bikes, what are the differences and what’s best for your riding style

by John Brown, HaveFunBiking.com

The idea of strapping a motor to a bicycle is nothing new. In fact, the first internal combustion engine bicycle was launched in 1885. As the bicycle industry moved forward into the next century, bikes with motors became motorcycles. But, the call for some sort of bicycle, powered by a motor, has never faded away. In recent years bicycles called E-bikes or electric-assist bikes have emerged to fill that void. Now as battery technology matures there are many options you can choose from when looking to buy an electric bike. Read on for some tips on choosing the right E-bike for you.

Motor options for E-bikes

At the heart of any E-bike is its motor. Motors usually break down into two types; Hub motors and Center motors.

Hub motor systems

These options replace either the front or rear hub with an electric motor. The front motor systems are usually an aftermarket system designed to change a standard bicycle into an electric bike. While these systems aren’t used commonly on stock E-bikes, they are another option if you have a bike you love and want to add some battery power. Rear motor systems replace the rear hub with a motor. Additionally, some rear hub systems incorporate the motor and battery into the rear wheel. Some of the benefits of a hub motor system are that they don’t put any additional strain on the chain or gears of a bicycle. The cost might also be a factor.

The GeoOrbital (bottom left) and Copenhagen (top left) wheels are aftermarket hub motor options, while the DHM (right) bicycle comes complete with a rear motor wheel.

The Center motor systems

This has become the most popular option for a completed E-bikes in today’s market. A center motor bicycle is purposely built to accept a motor in the center of the frame where a normal bikes pedal crank would go. With two major E-motor manufacturers, either Bosch or Shimano, most bicycle brands build their bikes around one of these two systems. Center motors are usually about 50% more efficient than hub motors and produce more torque. This allows the center motor to have a better range and ride quality. Also, when removing a wheel for transport or fixing a flat, a center motor system is far easier than a hub motor.

Here this center motor Raleigh E-MTB is perfect for the off-road trail.

The battery for an E-Bike

E-bikes usually use a battery located in one of two places, over the rear wheel or on/in the frame’s downtube. The batteries use a series of Lithium-ion cells to maximize motor power while keeping the system light. When comparing batteries, the power is measured in Watt Hours, with larger batteries having more Watt-Hours, equaling a longer mileage range.

Rear Battery (left) and a downtube mounted battery (center and right)

How the E-bikes works

Most E-bikes come equipped with pedal assist for added power when pedaling. However, there are few models that also offer a thumb or twist throttle for an added boost when you need it. With only the pedal-assist made most E-bikes only offer power when you need it. Therefore, if you are riding along a flat path or downhill, the E-bike will not offer much in the way of assistance. However, if you are riding against a headwind, along rolling terrain, or uphill, the E-bike’s motor will kick in and assist you when the going gets tough. Additionally, most systems are adjustable, allowing you to customize the level of assistance you may need.

Bosch or Shimano are the two main motor manufactures for E-Bikes.

Bosch and Shimano are the two E-bikes motor manufactures.

Range between charges

Determining the range of an E-bike is difficult due to the fact that the motor only engages when needed. As an example, someone riding a bike on a 45-mile trip that is half downhill and the other half on flat ground might finish their ride with plenty of battery left. On the other hand, a route selected that is 15 miles long but full of steep hills could burn through a fully charged battery sooner. So the published information for any E-bikes range is a bit of a guess. On the bright side, these guesses are consistent across most brands, so the range is still a good way to compare brands.

Buying an E-bike

The best place to start your E-bike buying education is at your favorite bike shop. Usually, I recommend doing some research about various brands before starting a search, but with E-bikes, the ride is more important than the stats. For E-bikes more than any other bike, the sum is greater than the parts, so ride the bikes! In fact, ride as many of the bikes as you can. They will all have drastically different ride qualities. Beyond the different ride qualities, there are also many different types of E-bikes. Those types can include Mountain bikes, Fat bikes, Road bikes, Trekking bikes, as well as trikes and recumbents.

Accessibility for E-bikes

Now that the market for E-bikes has become mature, there are many options to choose from.

The last thing to consider when buying an E-bike is your state’s laws on the subject. Will they legally allow you on non-motorized trails or road, or treat you as a motor scooter, requiring a license? Considering E-bikes are a relatively new development, the department of transportation in individual states haven’t all agreed on how to treat them. Additionally, your local trails could be off-limits to your new E-bike, so check the laws first. As the E-bike legislation matures, I think there will be more and more options for E-bike riding all states.