Insight Stem 31.8mm 1-1/8"

Insight Stem 31.8mm 1-1/8"

Product Overview

The Insight Stem is a top-load stem engineered for 31.8mm handlebars and 1-1/8" steerer tubes, delivering increased front-end stiffness and responsive handling. Forged and CNC-machined from 6061 T6 aluminum with black anodizing, it provides a stiffer ride feel compared to standard 22.2mm setups while maintaining competitive weight across multiple size options.

Key Features

• 31.8mm Handlebar Clamp — Oversized clamp diameter maximizes contact surface with larger-diameter bars, increasing steering stiffness and precision control
• 4-Bolt Top-Load Clamping — Dual-bolt redundancy on each side distributes clamping pressure evenly, preventing handlebar rotation and flex
• 6061 T6 Aluminum Construction — Forged and CNC-machined from aerospace-grade aluminum offers strength-to-weight efficiency and precision tolerances
• Front-End Stiffness — 31.8mm system delivers noticeably stiffer steering response compared to 22.2mm setups, improving gate start control and maneuverability
• Lightweight Geometry — 31.8mm bar and stem combinations can achieve comparable or lighter overall weight than traditional 22.2mm setups while providing increased rigidity
• Black Anodized Finish — Durable anodizing resists corrosion and wear; laser-etched logo adds visual definition

Technical Specifications

• Material: 6061 T6 Aluminum (forged and CNC-machined)
• Handlebar Clamp Diameter: 31.8mm (oversized bars only)
• Steerer Tube: 1-1/8" integrated
• Clamp Type: Top-load, 4-bolt system
• Rise: 24.63mm
• Stack Height: 32mm
• Available Lengths: 45mm, 50mm, 53mm, 57mm
• Weight by Length: 45mm (239g), 50mm (256g), 53mm (267g), 57mm (280g)
• Finish: Black anodized with laser-etched logo

Compatibility and Ideal Use Cases

Compatible exclusively with 31.8mm handlebar clamps and 1-1/8" steerer tubes. Ideal for race-focused riders seeking increased front-end stiffness and control for gate starts and high-speed maneuvers. Suited for complete builds using 31.8mm bar systems where weight and rigidity are priority factors. Works with any 31.8mm clamp-diameter handlebar from Box, Tangent, or equivalent manufacturers.