[The following items are included in the gear cable set] 1: Brake outer pipe 5MM 2P (spiral), length: 2.5 meters, with a full set of wire pipe caps. 2: Speed change outer tube 4MM SP (straight row), length: 2 meters, with a full set of wire tube caps. 3: 2 inner brake lines, 1.1 meters + 1.7 meters. Double head (mountain/road head is available, which one is used) with a full set of end caps. [Special Instructions]: The wire tube is a whole piece, please cut it according to the wiring method of the frame! Applicable to: Mountain bikes, road bikes, folding bikes, BMX. Friendly reminder The 1.5mm thick cable is the brake cable, and the 4mm thinner is the gear cable. The two types cannot be used together. Some people say that the cable is very tight and laborious. That is to use the gear cable as a brake cable. used. 2. Generally, the dials are equipped with shifting cables, so there is no shifting inner cable in the sleeve. 3. No matter your car is mountain V-brake/disc brake or road/even cute small folding and BMX, it can be applied, you can cut it according to your own wishes, at the same time, there are enough cable caps and other accessories. quantity for loading! The 4.5mm thick wire tube is the brake wire tube (with the rotary wire inside), which is used for brakes, and the 4mm thin wire tube is the shift wire tube (the inside is a vertical wire, and the "vertical wire" is characterized by a small shrinkage ratio, so it is used for shifting. Guaranteed variable speed. Its cost is twice as expensive as that of a spinning wire, which is why there are some cheap so-called "conduit kits", because these cable kits all use "spinning" gears and brakes. The brake line is used to save costs, but it will affect the speed change, please pay attention to the riders!), the two cannot be used in common. TipsThis bicycle brake cable kit can achieve better braking and smooth operation, please adjust the tension after installing the new cable. Wear a cable cap when in use to prevent the end of the cable from being scratched.