21.1mm

ALLOY 13/16" 21.1MM OS BMX BIKE 4BOLT QUILL STEM VINTAGE SCHWINN CRUSIER BICYCLE Quill Diameter: Compatible with standard quill stems, the 21.1 mm diameter works seamlessly with most bicycles, especially older or vintage models.Bar Clamp Diameter: Designed to fit standard 21.1 mm handlebars, making it adaptable for BMX and other bikes that require secure handling.Stem Length: At 55 mm, this stem strikes a balance between control and responsiveness, ideal for BMX riding where quick maneuvers are key.Quill Length: A 4-1/4 inch (108 mm) quill length provides a stable fit within the fork's steering tube, ensuring secure support.Fork Compatibility: Suited for 1-inch forks, this stem covers a range of BMX and vintage bike styles that use this standard size.Angle: The 0-degree extension allows for a straightforward alignment from the steerer tube, promoting an assertive riding stance.Material: Crafted from high-grade alloy, this stem combines strength and low weight, resisting corrosion for long-lasting use.BMX-Specific Design: Built for the demands of BMX, this stem stands up to jumps, tricks, and high-impact use, meeting the needs of both casual and serious riders.Installation: Easy to install—simply insert the quill into the steerer tube and tighten the bolt to secure. Ensure the handlebar is centered and aligned with the front wheel before finalizing. Benefits: This 450 Alloy Stem is engineered for BMX riders seeking dependable performance in a lightweight, durable design. Its versatility and compatibility with standard parts make it a practical choice for both vintage bike enthusiasts and BMX riders alike. Copyright © 2024 Cycle Source. All rights reserved.