Twice the speed - with half the effort, Optibike has the power. On a test ride in Boulder Colorado, a fit road cyclist was able to climb the notorious Old Stage Road at 10 MPH sitting down with an easy spin on the Optibike. On his ultra light road bike, he had to stand and grind all the way to go 5 mph!!! Twice the speed - half the effort, Optibike has the power.
Because e-bikes are capable of greater speeds for longer periods of time than standard bikes, you want extra control. Wider tires provide traction and some bump absorption with little penalty. You also want strong brakes to slow you (and all that extra weight) easily. It's worth looking at the quality of the brakes and investing in bikes with better ones if you can.
Once you accept that you are really meant to pedal gently and let the motor do the work, non-speed freaks will get into it. E-bikes are great for commuting and for places that aren't pancake flat. They'll pull you away from the lights quickly, iron out hills and stop you getting sweaty, so you can bin the Lycra and ride in jeans, a suit, or, I dunno, an inflatable sumo wrestler costume. Whatever you like. 
Motor: We have a blog post showing some motor differences: https://www.ebikekit.com/blogs/news/its-whats-inside-your-motor-that-counts Cabling is probably the #1 issue when something goes wrong. Good connectors, good cables, and good assembly (bike shop!) are crucial Strain reliefs on all cable joints! Where you have a junction box or a connector, the stress is concentrated over a small area near this stiff spot on the cable. This can cause small breaks on the internal...
Fly Rides is back with the top 10 electric for commuting in 2018! Why top ten instead of eight? Because there are too many good choices this year! Electric commuting bikes are primed for more popularity this year than ever. With major cities across the country improving their biking infrastructure (finally), and electric bikes now having the capability to take you 60 miles and further, commuting by ebike grows all the time. Let us help you figure out the best option for your commute with our blog on the top 10 electric bikes for commuting in 2018! Read on for our full list.
“Second, even if you do make bikes in the US, they will be multiple times more expensive than their overseas counterparts and 99.9% of consumers won’t pay that price. When my shop tried selling a US-made bike next to a Chinese bike, with signage that explained why the US-made bike was more expensive, we couldn’t even sell one. Customers would stand there and talk about how they want American-made goods, then they would buy the Chinese bike.”
We Can Build It.   Built by hand in Pennsylvania, mostly by Harry and Alec. Custom Wheelbuilding Some people don't know that we build every one of our wheels here by hand in Pennsylvania. This lets us control each step of the process, ensuring that the spokes are uniform, straight, and undamaged, allowing us to apply spoke-prep to the spokes, oil to the nipple seats, and inspect the rims before...
This bike is designed for hauling. The Yuba Spicy Curry has a combined capacity of 500lbs (200lbs on the front including rider, and 300lbs of passengers or cargo on the back). To help move this weight, you’d expect a decent motor, and the Bosch Performance Line CX delivers. Normally only found on mountain bikes, the 75Nm of torque makes light work of hills, even with the heavy load.
Spec-wise, this thing is tricked out. You’ve got the option to go with  Suntour AION suspension or Fox Float suspension. The drivetrain is Shimano Deore XT. Same with the hydraulic disc brakes. The bike also comes with an ABUS Big Bordo folding lock that is keyed for both the batteries and the lock. Super convenient. There’s also loads of other options within the Delite line. Nuvinci and Rohloff drivetrains, 20mph and 28mph motors, standard and plus tires. You get the idea. Lot to choose from.
Controllers for brushless motors: E-bikes require high initial torque and therefore models that use brushless motors typically have Hall sensor commutation for speed and angle measurement. An electronic controller provides assistance as a function of the sensor inputs, the vehicle speed and the required force. The controllers generally allow input by means of potentiometer or Hall Effect twist grip (or thumb-operated lever throttle), closed-loop speed control for precise speed regulation, protection logic for over-voltage, over-current and thermal protection. Bikes with a pedal assist function typically have a disc on the crank shaft featuring a ring of magnets coupled with a Hall sensor giving rise to a series of pulses, the frequency of which is proportional to pedaling speed. The controller uses pulse width modulation to regulate the power to the motor. Sometimes support is provided for regenerative braking but infrequent braking and the low mass of bicycles limits recovered energy. An implementation is described in an application note for a 200 W, 24 V Brushless DC (BLDC) motor.[43]
For many bikes, battery range is more important that total power (because they're all pretty powerful). You want a bike that delivers a range long enough for your rides at the power levels you want. Most e-bikes will have three to five levels of assist kicking in anywhere from 25 percent of you pedal power to 200 percent boost. Consider how fast the battery takes to recharge, especially if you'll be using your bike for long commutes.
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