Upgrade your wheelset with the RISK RT139 Titanium Centerlock Disc Rotor Lockring, designed for secure installation of centerlock disc brake rotors. Made from lightweight titanium alloy, this lockring offers excellent strength, corrosion resistance, and a premium finish for road, gravel, and performance cycling setups.
Designed for Campagnolo CP / WTO wheelsets, the RT139 provides a clean, precise fit and a stylish finishing detail for your disc brake hub.
Titanium Alloy Construction
Lightweight, durable, and corrosion-resistant for long-lasting use.
Centerlock Disc Rotor Compatibility
Designed for centerlock disc brake rotor systems.
Campagnolo CP / WTO Wheelset Fitment
Suitable for Campagnolo CP wheelsets and WTO series wheelsets using the compatible centerlock interface.
M34 x P0.75 Thread Specification
Precision-machined thread for reliable installation.
Lightweight Design
Weighs approximately 6.2g, helping reduce unnecessary rotating weight.
Balanced Groove Design
Symmetrical groove layout helps maintain dynamic balance while adding a refined appearance.
Premium Color Options
Available in Rainbow, Gold, and Black finishes.
Recommended Tightening Torque
Marked with 40 N·m LOCK for proper installation reference.
| Item | Details |
|---|---|
| Brand | RISK |
| Model | RT139 |
| Product Name | Titanium CP Centerlock Disc Rotor Lockring |
| Material | Titanium Alloy |
| Thread Specification | M34 x P0.75 |
| Inner Diameter | Approx. 34 mm |
| Outer Diameter | Approx. 44 mm |
| Thickness | Approx. 3 mm |
| Net Weight | Approx. 6.2 g |
| Gross Weight | Approx. 10.3 g |
| Package Size | Approx. 90 × 150 × 10 mm |
| Recommended Torque | 40 N·m |
| Tool Compatibility | Park Tool BBT-9 or compatible tool |
| Package Quantity | 1 piece per bag |
Note: Disc rotor, wheel hub, axle, washer, and other accessories shown in the images are for display only and are not included.
