1. Hydraulic Disc Brake Set,Oil pipe length: front brake line pipe 900mm, rear brake line pipe 1850mm. 2. Making it perfect for entry-level riders,The braking power is specifically tuned to offer reliable performance with less noise and easy maintenance. 3. Strong sealing, reduced maintenance times, simple appearance, ergonomic, lightweight design. 4. Suitable for mountain bike, MTB, road bike, e-bike, scooter, folding bikes, etc(You only need to consider whether the tube is long enough) 5. High-strength PVC surface oil pipe, strong sealing, acid-resistant, aging-resistant, tensile-resistant, and not afraid of temperature differences. Size: A-pillar 74mm/B-pillar 51mm Specifications:front B-F160/R140 rear B-F180/R160 Applicable models:mountain/road bikes Oil pipe length:front brake line pipe 900mm, rear brake line pipe 1850mm Colour:Black Material:aluminum alloy Package Contents: 1pair * bicycle hydraulic disc brakes(without disc at right front and left rear) 4 * screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.