This seat moves the rider back 1-ﾽﾔ lower compared to the factory seat

Kickstand Measurement's given are the center portion Between the Foot and the Centerline of the Upper Pivot

Handlebar/Gas Tube Diameter: 22/26 mm

8 Material: Aluminium

Thread: Standard M8

KIBBLEWHITE VALVE EXH ST BD YZ250F 19 80-82316 beta-rr-350-4t-350-2024-esi4411702 This seat moves the riderBlack Diamond Valves Are CNC Machined From One Piece Forgings of EV8 Stainless Steel, Lightweight, Strong, One Piece Forging With Profiles That Provide Excellent Flow Characteristics, Valve is infused by a special German2 Improves Wear Properties, Reduces Friction, and Provides Resistance to Corrosion and Wear that is Superior to Chrome and Nickel Electcrolesis Plating, Each Valve Is Designed Using Finite Element Analysis (F. E. A) Software, and