ModelE20B401 Frame700C Aluminum Alloy ForkAluminum Alloy Fork Battery36V*7AH Samsung 18650 Core EN15194-2017 Standard Motor250W 36V Center Motor BrakeDisc Brake ShifterShimano ASTR2000 16 Speed DerailleurF:Shimano 2030 R: Shimano 2020 FreewheelShimano CS-HG50 8-S Rim700C*14G*32H Double Wall AL Range鈮?80km TireKENDA 700*28C ChainKMC Z9 It's not just a road bike, it's an electric bike, Its wheels are 700Cwith 700C*14G*32H Double Wall rims, the rim , frame and front fork are all made by aluminum,so the the weight of the bicycle is very light, the tire is KENDA 700*28C, it is durable, it can withstand years of using, not easy to tire burst. KMC Z9 chain and Shimano ASTR2000 16 Speed shifter allows you in the process of riding the speed change is very smooth. The brake is also a disc brake. An electric bicycle carries 36V * 7Ah Samsung 18650 core en15194-2017 standard battery makes it ride longer, you can ride more than 80 kilometers. The combination of 250W 36V center motor and Shimano cs-hg50 8-s Freewheel makes it more powerful. The appearance design of this bicycle is also very fashionable and young. The blue-green color gives people a feeling of youth and vitality. The battery is hidden in the frame, so the overall feeling is very beautiful.Electric Bike factory website:http://www.joykiebikes.com/electric-bike/