The GMC Denali 21-Speed Road Bike is worked around a lightweight aluminum street bicycle outline for hustling or driving. You’ll stop on a dime with the combination calipers and brake levers and the prominent composite Vitesse dashing edges look on a par with they perform. The Shimano derailleur and Shimano Revo changes roll out it simple to improvement gears rapidly and easily and the elite tires are up to the test of thorough road hustling. Ultimately, this street bicycle will enable you to remain hydrated with the included compound water bottle cage.