RISK RC122 Aluminum Barrel Adjuster Screw for Bike Shifter & Derailleur Cables

The RISK RC122 Barrel Adjuster Screw is designed for bicycle shifters, derailleurs, and cable housing adjustment systems. Made from lightweight aluminum alloy, it provides a practical replacement or upgrade for original cable adjuster screws on road bikes, mountain bikes, gravel bikes, folding bikes, and urban bikes.

Available in M5 and M6 thread options, the RC122 allows riders and mechanics to fine-tune cable tension for smoother shifting or braking adjustment depending on the compatible component. The black anodized finish gives it a clean and professional appearance, while the lightweight aluminum structure helps reduce unnecessary weight.

The M5 version is generally suitable for Shimano-style shifter or derailleur cable adjuster positions, while the M6 version is generally suitable for SRAM-style applications. This is only a reference guide; please measure your original adjuster screw before purchase to confirm the correct thread size.

Note: This product includes barrel adjuster screw only. Shifters, derailleurs, cables, springs, cable housing, and other accessories shown in images are not included.

Key Features

• Replacement barrel adjuster screw for bicycle cable systems
• Helps fine-tune shift or brake cable tension
• Made from lightweight aluminum alloy
• Available in M5 and M6 thread sizes
• Black anodized finish with RISK logo
• Suitable for shifter, rear derailleur, and compatible cable adjuster positions
• Can be used for road bike, MTB, gravel bike, folding bike, and urban bike setups
• Lightweight design: approx. 1 g for M5 and 1.4 g for M6
• Suitable for maintenance, repair, and custom bike upgrades

Product Specifications

Compatibility Reference

Compatibility varies by model and brand. If the original rear derailleur or shifter cable adjuster screw has the same thread and structure, it may also be replaced with this part.

Product Options

1. M5 Barrel Adjuster Screw

Thread: M5
Color: Black
Material: Aluminum alloy
Weight: Approx. 1 g / pc
Recommended Use: Commonly used for Shimano-style compatible shifter or derailleur cable adjuster positions.

2. M6 Barrel Adjuster Screw

Thread: M6
Color: Black
Material: Aluminum alloy
Weight: Approx. 1.4 g / pc
Recommended Use: Commonly used for SRAM-style compatible shifter or derailleur cable adjuster positions.

Precise Cable Tension Adjustment

Helps fine-tune cable tension for smoother shifting or braking response on compatible components.

Lightweight Aluminum Alloy

Made from aluminum alloy to keep weight low while providing reliable adjustment performance.

M5 & M6 Options

Two thread sizes are available to fit different shifter and derailleur systems.

Clean Black Finish

Anodized black finish with RISK branding for a simple and professional look.

Easy Replacement Part

Ideal for replacing worn, lost, or damaged original barrel adjuster screws.

Installation Notes

1. Remove the original barrel adjuster screw from the shifter, derailleur, or compatible cable adjuster position.
2. Compare the thread size and length with the RISK RC122 before installation.
3. Insert the RC122 adjuster in the correct direction.
4. Reinstall the spring, cable housing, and cable if required.
5. Adjust cable tension gradually until the shifting or braking feel is correct.

Please confirm the original screw size before purchase. Incorrect thread size may damage the component.