We have designed this gravel bike to make it easy to discover gravel riding. Easy and versatile:single chainring 38-11/40, mechanical disc brakes, xl flared handlebar, tubeless wheels, and 38 tires. You should choose the size of your bike based on your height, as well as your build (arm span and leg length). If you are between sizes, the smaller size will give you a more athletic position, while the larger size will give you a more comfortable position. Xs 5'1" 5'5" s 5'5" 5'8" m 5'8" 6' l 6' 6'3" xl 6'3" 6'7" you can try out a tribal 120 disc in the store, since the frame geometry is identical. Comfort-oriented frame geometry with a higher steering socket that offers a more upright position than a classic road frame. The elongated top tube and shortened stem allow this gravel geometry to move the fork forward for better compatibility between your feet and the front wheel. 6061 t6 sloping aluminum frame with a semi-integrated headset. Frame weight, size m:4 lbs carbon fork, and aluminum pivot that is more lightweight and offers more precise directional control. A headset 1"1/8 head tube that provides great strength and rigidity to the steering assembly. Inserts in the fork to fit a pannier rack. Maximum load on the fork:20 lbs fork weight:1.7 lbs tribal aluminum gravel handlebars with a 16, Flare for better grip and excellent comfort. Handlebar width (axle-to-axle):XS/S/M:420 mm. L/XL:440 mm. Stem:as:60 mm s:70 mm m:80 mm. L:90 mm. XL:100 mm single chainring 38-11/40 precise, very sturdy micro shift XLE 10-speed shifter. Very comfortable ergonomics:the shifter is comfortable regardless of hand size. Micro shift m665 rear derailleurs with a "clutch" system to hold the derailleur and prevent the chain from jumping. It can be disengaged to easily remove the wheel.