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700c bike wheels have a rim diameter of 622mm, making them a popular choice for road bikes, gravel bikes, and touring bikes. These wheels offer a balance of speed, comfort, and versatility, allowing riders to choose various tire widths for different terrains.

Electric bike batteries come in various voltages, including 36V, 48V, 52V, and 72V. The right battery depends on your riding needs. Higher voltages provide more power and range, while lower voltages are lighter and better for casual rides. Watt hours determine battery life.

Major eBike recalls have been issued for bikes and batteries with serious safety hazards. Products with faulty lithium batteries, such as those from Specialized, Aner, and Pacific Cycles, risk fires or explosions. Check for affected models to ensure your safety.

E-bike wattage (W) refers to the power output of the motor, affecting acceleration, hill-climbing ability, and battery consumption. Higher watts mean more power but drain the battery faster. Common wattages range from 250W (city riding) to 1000W+ (off-road use).

Leaving an ebike charging overnight can be safe if the bike has an automatic shut-off feature and you're using a high quality charger. However, overcharging can still risk battery degradation and fire hazards. Always monitor charging when possible or use a fire-safe station.

There are tariffs on Chinese electric bikes. In the U.S., a 25% tariff was imposed on e-bikes imported from China in 2018 as part of the trade dispute. The European Union has also introduced tariffs, aiming to protect local industries from unfair competition.