The RISK RL327–RL330 Bicycle Anti-Drop Tool System is designed to assist with the installation and removal of bicycle bottom bracket cups, center lock rotor lockrings, crank caps, and other threaded bike components.

During maintenance, sockets and tools may slip or fall off when applying torque. This anti-drop retaining tool helps keep the socket or removal tool aligned and securely pressed against the component, making disassembly and installation safer, easier, and more stable.

The system includes different adapter options for 3/8" and 1/2" drive tools, an M6 quick-release nut replacement part, a dedicated wall storage rack, and a 3/8" ratchet wrench. It is suitable for bike shops, professional mechanics, home workshops, and cyclists who regularly maintain bottom brackets, center lock hubs, cranksets, and wheel components.

Key Features

• Anti-Drop Retaining Design
  Helps prevent the socket or tool from slipping off during installation or removal.

• Useful for Bottom Bracket and Center Lock Service
  Suitable for assisting with T45 / T47 bottom bracket tools, center lock rotor lockrings, crank caps, and related bicycle maintenance.

• Quick Release Nut Design
  The M6 quick-release nut allows fast adjustment and easy removal.

• Multiple Drive Options
  Available in 3/8" male to 3/8" female and 1/2" male to 3/8" female versions.

• Improves Tool Stability
  Keeps the tool centered and pressed against the working surface while torque is applied.

• Ratchet Wrench Option Available
  Optional 3/8" ratchet wrench for use with compatible sockets and bike repair tools.

• Wall Storage Rack Available
  Dedicated rack keeps the anti-drop tools organized and easy to access.

• Workshop-Friendly Design
  Ideal for professional bike shops, home mechanics, and maintenance benches.

Recommended Applications

This tool system can assist with:

• Bottom bracket cup installation and removal
• T45 / T47 bottom bracket tool operation
• Center lock rotor lockring installation and removal
• Crank cap disassembly and assembly
• Hub lockring service
• Socket retention during high-torque work
• General bicycle drivetrain maintenance

Product Specifications

Product Options / Variants

RL327 — 3/8" to 3/8" Anti-Drop Tool

Model: RL327
Drive interface: 3/8" male to 3/8" female
Thread rod: M6
Length: approx. 280 mm
Net weight: approx. 132 g
Package weight: approx. 150 g

Designed for use with 3/8" drive tools and sockets. Helps keep the tool pressed firmly against the bottom bracket cup, center lock ring, or other compatible bike component during removal and installation.

RL328 — 1/2" to 3/8" Anti-Drop Tool

Model: RL328
Drive interface: 1/2" male to 3/8" female
Thread rod: M6
Length: approx. 287 mm
Net weight: approx. 146 g
Package weight: approx. 160 g

Designed for users who need a 1/2" drive input while converting to a 3/8" female interface. Suitable for heavier-duty wrench setups and compatible bicycle service tools.

RL329 — M6 Quick Release Nut Replacement Part

Model: RL329
Type: M6 quick release nut
Size: approx. 45 × 37 × 24 mm
Net weight: approx. 40 g
Package weight: approx. 45 g

Replacement quick-release nut for the anti-drop retaining tool system. Made with polymer material using 3D printing technology. Layer lines or seam textures may be visible due to the manufacturing process and do not affect normal use.

RL330 — Wall Storage Rack

Model: RL330
Type: Wall-mounted storage rack
Size: approx. 110 × 45 × 71 mm
Net weight: approx. 98 g
Package weight: approx. 110 g

Designed to store RL327 and RL328 anti-drop tools neatly in a workshop. Compatible with square-hole pegboards and wooden tool boards using the included mounting accessories.

RL247 — 3/8" Ratchet Wrench

Model: RL247
Drive size: 3/8"
Length: approx. 200 mm
Net weight: approx. 316 g
Package weight: approx. 330 g

A 3/8" ratchet wrench suitable for use with compatible sockets and bicycle maintenance tools. It can be used together with the anti-drop tool system for bottom bracket, center lock, and drivetrain service.

Package Includes

Depending on the selected option:

• RL327: 1 set × 3/8" to 3/8" anti-drop retaining tool
• RL328: 1 set × 1/2" to 3/8" anti-drop retaining tool
• RL329: 1 × M6 quick release nut replacement part
• RL330: 1 set × wall storage rack with mounting accessories
• RL247: 1 × 3/8" ratchet wrench

Note: Product pages show application examples only. Bottom bracket tools, sockets, bicycle parts, rotors, cranks, and other tools are not included unless specifically selected.