A2B Alva+ electric bicycle (pictures)

The A2B Alva+ is one of the San Francisco-based e-bike builder's most fully featured electric bikes.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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13.2Ah battery

The 13.2Ah battery provides the Alva+ with enough juice to roll about 40 miles under assisted power. Your mileage will vary depending on how much you weigh and your set level of assistance.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Lockable, removable

The battery pack can be locked to the frame with an included key, but you'll need to bring your own lock to secure the rest of the bike.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Magnetic plug

The battery connects to the bike's electrical systems via this simple, magnetic plug. The charger uses an identical plug.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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66-pounder

The Alva+ is hefty, 66 pounds to be exact, but most of the weight is concentrated in the rear, where the motor and battery are located.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Charger

You charge the battery with the included AC charger. An 80 percent charge from nil will take about 2 hours. A full charge takes 3 to 4 hours.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Shimano gearset

The rider's pedaling effort is sent through a Shimano XT seven-speed gearset.
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Shifter

Pedaling gear is chosen by wringing this twist-shifter. Your position is indicated by ringing the bell next to it.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Electric throttle

Twisting this throttle allows the Alva+ to motivate itself completely under electric power.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Pedals and cranks

However, to get the most range and power out of the Alva+, you'll want to add your own pedal power to the system.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Electric assist

Sensors in the bottom bracket detect your pedaling effort and add electric assistance to the mix.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Top speed

The Alva+ has a stated top assisted speed of 24 mph. However, heavier riders may get less speed and strong riders can continue to pedal beyond this limit under their own power.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Disc brakes

Hauling the ebike to a stop are disc brakes affixed to the front and rear wheels.
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Hydraulics

The hydraulic disc brakes are easy to modulate and have good feel, but I think I'd rather have easier-to-maintain mechanical stoppers.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Quick release

The front wheel is a quick release and is easy to yank off if you need to transport the Alva+ via truck or SUV. Lifting the hefty e-bike into a vehicle, on the other hand, is another matter.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Fenders

The Alva+ features integrated fenders at both ends, which means you can ride it in the rain without getting your backside soaked.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Lights

At both ends, you'll find integrated LED head and taillights for increased safety when riding from dusk to dawn.
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Front suspension

The front fork has well over 2 inches of travel, which makes short work of curb-hopping and steamrolling potholes.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Cycling computer

You can interact with the Alva+ and its various drive modes via this cycling computer.
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Cycling computer

In addition to battery level, the computer can display an odometer, a trip odometer, and the current speed. Here is also where the rider will adjust the level of assist by twisting the silver knob on the left side of the display.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Saddle

The Alva's ride is smooth thanks to a wide saddle and its upright riding position, which also promotes good visibility.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Wide tires

The Alva+ rolls on the widest bicycle tires that I've ever tested.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Wheels and tire

At 2.35 inches wide, these tires contribute to the e-bike's smooth ride, but also add a bit of off-road ridability. The 24-inch wheels that they're wrapped around are smaller than your average road wheel, but satisfyingly maneuverable.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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Internal cabling

Most of the cabling that you'll find on the Alva+ is routed internally, through the aluminum Y-frame, so there's not much to catch on.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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A2B Alva+ e-bike

It's heavy and unwieldy when you're dismounted, but the Alva+ carries its own weight and ends up being a nimble ride that flies up hills with the greatest of ease.
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Updated:Caption:Photo:Antuan Goodwin/CNET
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