Controltech RAS23 5 Degree Stem Black

The Controltech RAS23 5 Degree Stem is designed for cyclists who demand precise handling, lightweight performance, and long-lasting durability. Built using advanced 3D forged 6061 aluminum, this stem delivers excellent stiffness and strength while keeping the overall weight low for better riding efficiency. Whether you ride on roads or mountain trails, the RAS23 stem enhances steering control and bike stability, helping you maintain confidence during high-speed rides and technical sections. Its reversible 5-degree angle allows riders to choose between a rise or drop setup, making it easy to customize riding position according to comfort or aerodynamic preference. Compatible with 31.8mm handlebars and 28.6mm steerers, this versatile stem is ideal for riders looking to improve bike fit, handling response, and overall cycling performance with a reliable and premium-quality cockpit upgrade.

Key Features

• Material: 3D Forged 6061 Aluminum Construction

• Technology: Advanced RAS23 Design for Better Stability

• Handlebar Compatibility: 31.8mm Clamp Diameter

• Steerer Compatibility: Fits 28.6mm Steerer Tubes

• Angle: Reversible 5° Rise or Drop

• Usage: Suitable for Road and Mountain Bikes

• Performance: Improved Steering Precision and Control

• Strength: Forged Construction Offers High Durability

• Weight Advantage: Lightweight Yet Stiff Structure

• Bike Fit: Available in Multiple Length Options

Product Specifications

• Product Name: Controltech RAS23 5 Degree Stem

• Color: Black

• Material: Aluminum

• Construction Type: 3D Forged 6061 Aluminum

• Handlebar Diameter: 31.8mm

• Steerer Tube Size: 28.6mm

• Stem Angle: 5 Degrees

• Intended Use: Road Bike, Mountain Bike

• Faceplate Material: 6061 Aluminum

• Available Sizes: 60mm to 80mm

Build Quality & Performance

The Controltech RAS23 stem is engineered using a 3D forging process that creates a stronger and more reliable structure compared to traditional cast stems. This advanced manufacturing method allows the stem to remain lightweight without sacrificing stiffness or durability. The high-strength 6061 aluminum faceplate provides secure handlebar clamping for better confidence during aggressive riding and sprinting.

The reversible 5-degree angle gives riders flexibility to fine-tune their riding posture for endurance comfort or aerodynamic efficiency. Its stiff body construction improves steering response, making the bike feel more stable and predictable on both smooth roads and rough trails.

Easy Operation / Usage

• Install directly onto compatible 28.6mm steerer tubes

• Secure handlebars with the 31.8mm clamp system

• Flip the stem to achieve either rise or drop positioning

• Choose suitable stem length for better comfort and handling

• Ideal for upgrading road or mountain bike cockpit setups

Why Choose This Product

• Provides excellent balance of strength and lightweight performance

• Enhances bike handling and steering precision

• Durable forged aluminum construction ensures long-term reliability

• Adjustable angle setup supports personalized riding position

• Suitable for both road cycling and mountain biking

• Trusted Controltech quality for performance-focused riders

• Helps improve comfort, control, and riding efficiency

In the Box

• 1 x Controltech RAS23 5 Degree Stem Black