Contact Us

Please use the form on the right to contact us, or call 202 794 6620. We are happy to answer any question about electric bikes that we can. 

Allow up to 24 hours for a response - we get very busy helping folks in the store! 

Hope to see you soon! 

ElectriCityBikes Team


4810 Wisconsin Avenue Northwest
Washington, DC 20016
United States


We have carefully curated the most reliable and innovative models of electric bikes from the top brands - Specialized, Kalkhoff, Focus, Raleigh. Come in today to browse and a free test ride - try before you buy! Our head tech has over 5 years experience in all brands and types of e-bikes and kits. Electricity Bikes was founded by City Bikes, pioneers of the urban transportation bike shop in DC since 1988.  

Hydraulic Disc Brakes

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Hydraulic Disc Brakes

Charlie McCormick

Shimano's Zee four piston upgrade

Shimano's Zee four piston upgrade

Hydraulic disc brakes will have the most stopping power in any weather conditions, and are standard equipment on most eBIkes because of the added weight and speed on an electric bike, stopping power and stability while braking are important. Not all disc brakes are created equally - the size and quality of the disc (or rotor), as well as the quality of the pad material can have a significant impact on braking performance.  Disc brake pads will probably need replacement every thousand miles or two, rotors about triple of that. Frequent riding in the rain where the brakes are more exposed to road grit will shorten pad life. It is recommended to have a front rotor of at least 180mm on speed (28mph) eBikes. 

Four brake pistons extend the service life of your brake pads significantly because the distribute pressure and heat more evenly across the brake pads and rotor. They absorb more initial heat and vibration for quiet, smooth operation.