Aluminum frame Wheel size: 26" Color: black, orange Number of gears: 21-speed derailleur (Shimano) Installed new parts: drink holder, chain, brake pads, stand, and reflectors. Brakes: rim brake V-Brake (tektro) Gear shifting: twist grip shifter (Shimano) Equipment: Suspension fork (SR Suntour), fenders, and drink holder. Condition: The bike is in a nice and well-maintained condition - freshly serviced.