Redfire Hybrid Road Bike, 21 Speed Shimano Shifters,700C Wheels 21 Inch Aluminum Frame,City Commuter Road Bicycle for Adult Men&Women(Black)

LIGHTWEIGHT & COMFORTABLE:Lightweight aluminum frame corrosion resistant;ergonomic grip sand sport saddle offer added comfort where you need it most. SHIMANO SHIFTERS: Shimano 21 speed shifters with Shimano front rear derailleur for precise gear shifting , the gearing is perfect for moderate hills and long distances on flat surfaces. HIGH PERFORMANCE CONFIGURATIONFront and rear linear pull brakes provide quick, crisp stops and steady speed control.and strong and light alloy rims for added stability. All-terrain tread on the 700C tires enhances rolling momentum for less resistance. HYBRID BIKES SERVE MANY PURPOSES:It's perfect for getting fit, commuting to work ,cruising around the block. It equipped with multi speed gearing, flat handlebars and an upright seated positioning. So bikes specifically are comfort, fun and easy to ride on the city. EASY TO ASSEMBLE: 85% pre-assembled, free assembly tools and pedals included. 19 inch frame fits adult riders 57 to 61 21 inch frame fits adult riders 60 to 64.