Trainer Through Axle Set for MTB Rear 12x142/148 Boost spec
Introduction
RapiLock Trainer Axle is purpose-built for indoor training. Unlike standard thru-axles, it’s optimized for secure, long-duration locking with direct-drive trainers, ensuring stability during intense rides.
With 3 adjustable lengths (147 / 154 / 164mm) and multiple thread pitches (P1.0 / P1.5 / P1.75), it eliminates the need for extra adapters.
Custom-designed axle ends provide perfect engagement with trainer clamps, while modular thread inserts protect your bike’s original axle threads from wear caused by frequent mounting.
For serious indoor riders, RapiLock Trainer is the ultimate upgrade for a secure and hassle-free setup.
Key Features
# Trainer-Specific Design
Engineered for a secure and stable connection with major direct-drive trainers.
# Protects Original Axle Threads
Prevents wear from repetitive trainer mounting.
# No Adapters Needed
Adjustable lengths and multiple thread pitches ensure compatibility across frames and trainers.
# Custom Axle Ends
Perfectly designed to match trainer clamps, preventing slippage or frame damage.
# Tool-Free Installation
Quick and effortless setup for smooth transitions between indoor and outdoor rides.
Specification
| Product | RapiLock Trainer Axle 154 |
| Axle Material | Aluminum 7075-T6 |
| Axle Diameter | 12 mm |
| Axle Length | 154 mm |
| Thread Length |
Blue: M12*P1.0, 20mm Brown: M12*P1.5, 18mm Pink: M12*P1.75, 20mm |
| Weight |
57.5 g (Axle+Thread Length 18mm for reference) |
| Includes |
Axle Ø12x154mm x1 Thread x3 (Multiple Pitches & Lengths) Skewer x1 piece Spacer x1 piece Cone x1 piece Allen Wrench x2 piece Trainer Nut x1 piece |
Product Manual & Care Guidelines
All RapiLock products are tested and certified under ISO 4210 standards.
For detailed installation and usage instructions, please refer to the user manual below.
View User Manual