I used to mountain bike quite a lot. I was a fairly strong 17 stone (238lb) weightlifter and rode pretty fast but didn't go in for big air or jumps. Nevertheless I used to break bikes at a ridiculous rate. I broke the bottom bracket off a Marin titanium frame, I broke the bottom bracket off of a Roberts hand built mountain bike. I snapped 2 pairs of handlebars, broke cranks, pedals, chains, wheels, spokes and forks etc etc.


Shell Eco-Marathon Americas Competition 2014 1st and 2nd Place Winners Both Used an Electric Bike Technologies Hub Motor! The Mater Dei Supermileage Team of Mater Dei High School, in Evansville, Ind., took the top spot in the Prototype category. The team built a vehicle using an electric bike motor from Electric Bike Technologies USA and won the electric plug in class at the 2012 Shell Eco Marathon Americas.  They raised the...
E-bikes use rechargeable batteries, electric motors and some form of control. Battery systems in use include sealed lead-acid (SLA), nickel-cadmium (NiCad), nickel-metal hydride (NiMH) or lithium-ion polymer (Li-ion). Batteries vary according to the voltage, total charge capacity (amp hours), weight, the number of charging cycles before performance degrades, and ability to handle over-voltage charging conditions. The energy costs of operating e-bikes are small, but there can be considerable battery replacement costs. The lifespan of a battery pack varies depending on the type of usage. Shallow discharge/recharge cycles will help extend the overall battery life.
The bike is great but you have to pedal it has no throttle it's a pedal assist. When you put the power on and Start to pedal the power kicks in the motor stops if you stop pedaling.it has 3 power modes the low is pretty much useless unless you are in a crowded place I used it on full power it's fast my phone app show 19 miles it was a flat surface but I am 160 pounds.and really easy to pedal.the seller did a great job the first bike I received was defective the front wheel axle was bent so they send me another bike after I return the defective bike bother shipping was free so great on their part I Haven't use this bike long the only issue I had is you have to adjust the front disk brake if you are handy or take it ... full review

In our view, e-bikes are approaching a crossroads in concept and design. Heading off in one direction are longer travel, enduro-style e-bikes, which are largely designed for cruising up and then blasting back down. Plotting a slightly different course is the idea of a lightweight model that rides much more like a normal mountain bike, but requires more work from the rider. Of the two approaches, both have their benefits, but it’s the latter that gets us the most excited. Once the overall weight falls into the 16-17kg range (the lightest bikes are currently19-20kg) it’s going to be really hard to tell the difference between an e-bike and a regular trail bike on the descents and the flat, but you get the benefit of a gentle push up the climbs.
All the models we tested are full suspension all mountain/trail bike models with relatively similar amounts of suspension travel, geometry, and wheel/tire size. The addition of a large battery and a small motor adds significant weight to an e-bike and they generally weigh in the neighborhood of 50 lbs, approximately 20 lbs heavier than non-e-bikes, and the massive weight of these bikes makes them more difficult to ride without the support of the pedal assist motor.
The two most common types of hub motors used in electric bicycles are brushed and brushless. Many configurations are available, varying in cost and complexity; direct-drive and geared motor units are both used. An electric power-assist system may be added to almost any pedal cycle using chain drive, belt drive, hub motors or friction drive. BLDC hub motors are a common modern design. The motor is built into the wheel hub itself, and the stator fixed solidly to the axle, and the magnets attached to and rotating with the wheel. The bicycle wheel hub is the motor. The power levels of motors used are influenced by available legal categories and are often, but not always limited to under 750 watts.
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...
The time or distance an electric bike battery will run between chargings is impossible to judge with much accuracy. There are too many variables: terrain, speed, rider weight, bike load (shopping, kids, luggage), and more. However, we can make a few generalizations about an e-bike’s recharge time and overall working life. These generalizations should be used for comparison purposes only.
Not the best bike but good for what it is. 250watt. not enough power even for small hills on its own and does not do 15/hr even on flat ground. battery looses power when cold but still works. Over all so far, dispite the above I give it 4 stars because it is what you would excpect in a cheap bike and it does work. There is no braket for the headlight tho so be warned you will have to improvise on that.
Cycling Plus is the manual for the modern road cyclist. Whether you're cycling weekly, an occasional new rider or a Tour de France fan you’ll find everything you need. Every issue is packed with expert reviews of the latest road bikes and gear, inspirational routes and rides, evocative features that take you inside every aspect of cycling and unmatched nutrition, fitness and training advice.
On the AM 4 you get 150mm of travel via a Fox Factory 36 Float fork, 11-speeds from a Shimano Deore XT drivetrain, and Magura MT-Trail hydraulic disc brakes. They also don’t gip you on the dropper with a wonderful, wonderful KS Lev. In terms of geometry, the build is pretty dope. It’s a nice slack feel, so you can do some solid downhills. A DT Swiss wheelset along with Magic Mary tires give you a lightweight and smooth ride.

The LT or long travel line that Haibike is one of the most interesting developments in electric mountain biking in quite some time. I’ve chosen the FullSeven LT 4.0 because I wanted to show you another quality, low-cost option. The FullSeven line is built a little less aggressively than the AllMtn series, but still functions as a great all-around mountain bike for those riders who want to hit fire roads, and maybe the occasional single-track trail. The coolest thing about the LT line is that it costs exactly the same as the standard FullSeven line that comes with 120mm of travel. You can upgrade to 150mm on any FullSeven bike for no extra cost.

When looking for the perfect ebike, there are a lot of things to consider. There’s price, weight, capabilities, performance and something that’s hard to quantify: feel. That’s a combination of factors that is affected by the geometry of the bike, its materials, components and other nuances. I took a ride on the crowd-funded Carbo folding bike this week and I’m not sure I’ve ever felt as comfortable on a folding bike in the city as I did on this extremely light, yet powerful ebike.

The first step in deciding which Electric Bike is for you is to determine the right style for your type of riding. Want to take things off road? We have a full range of Mountain Electric Bikes, Hunting Electric bikes, and  Fat Tire Ebikes that’ll have you going on and off trails with ease. Looking for a low impact but super fun ride? Our line of Comfort E-bikes, Commuting E-bikes, and even folding bikes will have you zipping around town, on the beach, or anywhere you can ride- no problem.
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