Frame:Aluminium Alloy, TIG welded with stylish graphicsFork:Steel suspensionFrame:Tyres:Button Tyres 26x2.0Mudguards:Plastic FendersPedals:Aluminium Alloy with reflectorsChainwheel & Cranks:24-34-42TFreewheel:14-28TAccessories:Front Reflector, Seat Pillar Reflector & Side StandUltimate bike is the first Indian bicyle that comes in mag wheels instead of spokes wheels. Having sporty and dynamic looks this bike will be definitely.