Feature:1. H/L high and low adjustment screws, accurately adjust the transmission to the best working condition. H and L are positioning screws, which can 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.2. Highcarbon steel body, lightweight, precise, highstrength, durable, highcarbon forged body, high rigidity, precise and direct power transmission.3. Solid guide chain piece is electroplated with mirror chrome, which is bright, wearresistant, antirust, and durable as new.4. Twoway pull wall line, high compatibility, twoway pull line wall, both pullup and pulldown wiring are supported.5. Bicycle front derailleur is suitable for 42-34-24T and 42-32-22T three-tooth chainrings.Specification:Item Type: Bicycle Front DerailleurColor: Silver With Black (Regular Color)Material: High Carbon Steel + Aluminum AlloyProduct Size: Approx. 110 x 80mm / 4.3 x 3.1inWeight: Approx. 161g / 5.7ozPull Line Method: Both Pull Up or Pull DownApplication: Suitable for Three-Tooth Chainrings of 42-34-24T And 42-32-22T.Package List:1 x Bicycle Front Derailleur1 x Washer1 x Screw