THE FRAME OF THIS PREMIUM MOUNTAIN BIKE IS MADE OF 6061 ALUMINUM ALLOY. ALUMINUM ALLOY FRONT FORK COMES WITH CABLE CONTROL LOCKOU. THIS MODEL COMES WITH PROWHEEL ALUMINUM ALLOY CRANK SET, SEALED BEARING BOTTOM BRACKET, ZOOM HB-870 HYDRAULIC FRONT / REAR DISC BRAKES, 160mm STAINLESS STEEL ROTOR, SHIMANO ALIVIO LEVER SHIFTERS, SHIMANO 27-SPEED ALIVIO DERAILLEUR, QUANTO FRONT / REAR ALUMINUM ALLOY QUICK RELEASE HUBS, 27.5″ ALUMINUM ALLOY DOUBLE WALL RIMS, FORGED ALUMINUM ALLOY STEM, AND ALUMINUM ALLOY SEAT POST. 90% PRE-ASSEMBLED. USER JUST NEED TO INSTALL THE FRONT WHEEL, HANDLE BAR, SEAT, AND PEDALS. THE ADJUSTMENTS OF WHEEL AND BRAKES MAY BE REQUIRED. PROFESSIONAL ASSEMBLY SERVICE IS RECOMMENDED.
Navi Z690 Hardtail Aluminum Alloy Seamless Frame, Shimano Alivio 27-speed, Zoom Hydraulic Disc Brake, 27.5″ Wheel Mountain Bike (BLACK/GREEN)
