- Sturdy step-through frame, strong smooth motor and higher top speed of ~28 miles per hour
- Commuter ready with front and rear LED lights, fenders, rear rack and lots of reflectors
- Rear heavy design, display panel is tricky to reach when riding, can feel frame flex when riding
The Shima is one of A2B’s fastest electric bikes offering a 28 mile per hour top speed in pedal assist mode (which has three levels). It uses a higher end TMM4 torque sensor for smooth acceleration and comes stock with front and rear LED lights, fenders, a whole mess of reflectors and a license plate attachment (for states that require it). It’s a refined ebike that looks great, doesn’t make a lot of noise and is backed by a great warranty. The ride quality is good, though not as smooth as the A2B Octave or Metro which offer full suspension and a padded seat, but all of these bikes are rear heavy with a battery design that is higher up. The fancy Y-frame and weight of the battery reduces stiffness and I could feel a bit of flexing during test rides.
The motor powering this thing is quite strong, though very smooth and quiet because it’s a direct drive (gearless) design. Offering 500 watts of power, it accelerates well and can power up small hills without issue in throttle mode. It really shines however in pedal assist mode when you add to the system by pedaling along. The eight speed Shimano XT drivetrain works well and I’m a fan of the trigger shifters on the right grip that stay out of the way and let you firmly grasp the handles when riding.
While some other A2B bikes come with one battery mounted in the downtube and an optional second “B” battery that attaches in the rear, the Shima only has one pack (though it can be upgraded for increased range). The pack is removable for convenient charging or to make the bike lighter during transport. It uses the fancy new energy bus standard with a magnetic plug that’s easy to insert. The pack itself offers 36 volts of power and 13.2 amp hours of capacity for a solid range of up to ~40 miles per charge. The cells use a Lithium-ion chemistry that’s light weight and more durable for years of use (the two year warranty is also nice here).
This is a beautiful bike and I love that it offers both throttle and pedal assist mode with the speed pedelec 28mph top speed. It’s more aggressive than some of the other A2B bikes with a narrower, harder seat but the handlebars and seat hight are still adjustable to get a nice fit. The rear heavy design isn’t perfect and I’ve found it tricky to lock this bike up since the downtube is so thick. The tires are also non-traditional for bicycles which means it might be harder to fit into some racks or find replacements but they do offer good padding. While the key fob thing is neat and may reduce the risk of water damage, I feel like the console is difficult to interact with when riding and would have traded a regular key if the price was lower.
For someone who lives in an urban environment this could be a great electric bike for commuting and grocery getting. A2B sells their own rack attachment and panniers that look great (and cost a bit extra) but the included mirror is awesome for safety. This thing approaches the vespa/scooter look but is decidedly bicycle with the eight speed drivetrain and performance saddle. It’s a joy to ride and the warranty is solid, many bike shops I’ve seen use these for rentals because they are so durable.
- Speed pedelec design allows you to reach ~28 miles per hour in pedal assist mode
- Beautiful integrated fenders and front and rear lights that run off the main battery
- Lots of reflectors everywhere (front, sides and rear) more than most other ebikes – also includes a license plate mount in the rear
- Elegant design with easy to mount step-thru frame and adjustable stem for improved fit
- Neat wireless key fob activates bike also uses the new energy bus magnetic charging port connector
- Large Tektro Dorado hydraulic disc brakes provide ample stopping power
- Puncture resistant Kenda Krusader tires are large, offering a bit of extra cushion to the front suspension fork
- Tire size and width are a bit untraditional, can be tricky to find replacements at bike shops, consider moped tires
- Tubing on rear rack is not standard and won’t work with many normal bike bags and panniers, A2B offers their own top rack and bags
- Frame can feel less stiff due to large battery at rear, I could feel it flexing when pedaling and leaning during the test rides
- Both lights turn on with the slider switch at the front, would be nice if they were integrated to the main display console
- Front shock is very basic, no lockout and limited rebound adjustment
- LCD console is neat but harder to reach when riding, more of a set it and forget it design
- No rear suspension like the Octave or Metro, considering the higher speeds the Shima can reach and the firm seat it’s a less forgiving ride