Features: Effort saving hydraulic clutch slave cylinder crafted with aluminum alloy ensures seamlessly compatibility with various off roading motorcycle models. Precise engineered for linear clutch feedback and enhanced control, this motorcycle clutch pump combines lightweight durability. Ideal for off roading enthusiasts, multiple bike owners, and riders seeking reduced hand fatigue during technical trail navigation or extended adventure tours. Excels in ruggedly terrains and demanding riding conditions, maintaining consistent clutch responsiveness for dirt bikes tackling slopes or muddy trails. Simplified installation process requires no special tools, allowing riders to quickly upgraded their off roading motorcycle accessories while achieving professional clutch modulation. Specifications: Component: Aluminum Thread Size: M10x1.25mm Length: Min 137mm, Maximumly 159mm Pistons Diameter: 14mm Fixed long screw pump under as m10x1.25 standard, and the adjustable range is long,suitable for most models modified line of clutch and brake line, but some models(such as king GS125 machine) of the original car pull head fixed positionis silking, need to use 8.2 mm drill bit, removing silking to install Package Includes: 1 Set Motorcycle Hydraulic Clutch Pump note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.