Size : 49 This size fits 5'2'' - 5'7'' Frame Aluminum, 700C*31.8*21", 2*8 Speed, Headtube 50*44*120mm Fork Steel, 700C*28.6 steerer diamater *25.4 blade diameter *210mm total length, Spacing 102mm, No Thread Paint Matte finish Headpart 1-1/8 10 pc headset Bottom Bracket One piece, sealed 110mm Handle Bar Aluminum Drop bar Model JB-8701, 22.2 handle bar diameter, Clamp Diameter 25.4 , handle bar width 420mm Stem Aluminum, Model JB-8701, 28.6*35mm, Extension 60mm* -7 degrees, Clamp size 25.4mm Bar tapes 2.2meters * 2, Black Disc Brake 160 diameter disk brake Brake Cable Crank set 2 Gears, 42*52T, 170mm arm length, Allow crank Front Derailuer Sensah Reflex SD, 31.8 center tube clamp. Fits up to 52T Rear Derailuer Sensah Reflex RD, 8S, Fits ups to 32T Brifters Sensah Reflex SL, 2*8 Speed Sprocket 11-32T Freewheel, 8 Speed Chain 1/2 * 3/32 * 116L Rim 700C*35C*14G*32H*25H, A/V valve. Front Hub Aluminum 14G * 32H *100mm *108mm, with disk break holes, quick release Rear Hub Aluminum 14G * 32H *135mm *145mm, Casette Type with disk break holes, quick release Spokes 45# Front: 14g * 270mm, Rear: 14g * 270/268mm Tires 700c * 35 Inner Tube 700c * 35, A/V 60mm Rim Tape 700C*16mm*0.6T, fabric material (Nylon) Seat post Alloy, 27.2 * 300mm *2.0mm thickness, with pillar Saddle Black color, foamed saddle Pedal Alloy, 9/16 axle Bike stand Kick stand