13x10 Speed Shifter Lever: The gear shift of the shifter lever is easy to adjust. Fine tune the brakes, the lines are tight and not slippery. Easy to operate, bicycle gear can be quickly installed and disassembled, 3x10 30speed left and right shifters, left shifter is 3 speed, and right shifter is 10 speed. 2High Adaptability: The universally installed handlebar diameter of the hifter lever is 22.2mm / 0.9in, which has high adaptability. The quality of bicycle shifting is stable, and it can be perfectly compatible with the speed control system. 3Two Way Pull Wall Line: The bicycle front derailleur two way pull wall line, high compatibility, two way pull line wall, both pull up and pull down wiring are supported. The solid guide chain piece is electroplated with mirror chrome, which is bright, wear resistant, anti rust, and durable as new. 4Front Derailleur: Accurate adjustment of the front derailleur of the bicycle, H/L high and low adjustment screws, precise adjustment to adjust the derailleur to the best working condition. H and L are positioning screws. The adjustment of these two is to ensure that the chain is between the largest and smallest pieces of the flywheel. H is the high position and L is the low position. Bicycle front derailleur is suitable for 423424T and 423222T 3 teeth chainrings. 5Rear Derailleur: Bicycle rear derailleur fine adjustment screw, H/L adjustment screw, fine adjustment screw tension screw, the speed adjustment is more precise, and the micro deformation is smaller. Tension screw, chain tension screw, effectively adjust the length of the chain in order to achieve the ideal speed change effect. Fine tuning knob, by rotating the fine tuning knob to change the length of the wire tube within a certain range, adjust the position of the flywheel and the chain, and effectively solve the problems of gear adjustment, unsmooth up and down gears, abnormal chain oil noise, etc., and repeat the fine tuning to achieve the desired effect. Long leg guide plate design for strong compatibility, fully compatible with 8/9/10 speed. Item Type: 3x10 Speed Shifter and Rear Derailleur Material: Aluminum Alloy + Steel + Plastic Product Color: As Pictures Shown Shifter Lever Specification: 3x10 30speed Shifter Lever Installation Diameter: 22.2mm / 0.9in Front Derailleur Clamping Ring Inner Diameter: 30.8mm / 1.2in, 31.8mm / 1.3in, 34.9mm / 1.4in Product Weight: Approx. 791g / 27.9oz Front Derailleur Application: Suitable for 42-34-24T, 42-32-22T three teeth cranks Front Derailleur Pull Wire Method: Both pull up or pull down Front Derailleur Features: Lightweight and accurate, sensitive speed change, multiple ring clamps Rear Derailleur Applicable Speed: Suitable for 8/9/10 speed Rear Derailleur Installation Method: Direct mount (the frame needs to have a rear derailleur hook) Total Value of Teeth After Extraction: 45 teeth Rear Derailleur Features: Lightweight, precise, high strength, silent with pulley Shifter Lever Features: Sensitive braking and shifter response, rapid braking, improving riding safety Application: Suitable for mountain bike 1 x Left ShifterLever 1 x Right ShifterLever 1 x Front Derailleur 1 xRearDerailleur