250 lb Torsion Half Axle (Left Driver Side) 5 on 4.5" Hub - 45° Down for Motorcycle Trailers
A compact, independent suspension solution for lightweight motorcycle pull-behind trailers, campers, and trike builds.
Overview
This R&P Carriages torsion half axle provides an efficient independent suspension system for light-duty towing. By utilizing internal rubber cords to absorb road shock, it eliminates the need for a traditional thru-axle beam. This design allows for superior ground clearance and a significantly smoother ride, protecting delicate cargo in small-scale builds like motorcycle cargo trailers or trike trailers.
R&P Service Insight
Half axles are the gold standard for custom lightweight builds, offering flexibility in frame design.
- Orientation: This is a LEFT side unit; spindles are side-specific for proper rotation and safety.
- Standard Components: Built with common 1" bearings and 1-1/4" seals for easy long-term maintenance.
- Frame Support: Because there is no cross-beam, your trailer frame must be reinforced to handle the torque at the mounting plate.
R&P Knowledge Hub
Start Angle: The 45° down start angle provides the maximum ride height and ground clearance available for this series.
Hub Specifics: Equipped with a standard 5 on 4.5" bolt pattern, matching most Jeep and Ford-style small trailer wheels.
Application: Perfect for trailers where the total weight stays under 500 lbs (when used as a pair).
Independent Travel: Bumps encountered by one wheel are not transferred to the other side, ensuring a stable towing experience.
Brand & Fitment Note
Selling Brand: R&P Carriages
Application Reference: Any OEM names (like Jeep or Ford) used in this listing describe compatibility and wheel bolt pattern styling only.
What This Means: This listing is for a specialized R&P Carriages suspension component designed for custom trailer applications.
Before Ordering: Verify your frame mounting hole spacing (3" center-to-center) and ensure you are ordering the correct side (Driver Side/Left).
R&P Repair Insight
Precise alignment is critical during installation to ensure even tire wear and stable tracking.
- Alignment: Use a straight edge or laser to ensure spindles are square to the frame, as there is no axle beam to self-align.
- Mounting: Designed for 3/8" hardware. Ensure the mounting surface is flat and clean.
- Maintenance: Hubs come pre-greased, but it is best practice to check grease levels after the first 50 miles of use.
Features
Independent Torsion Design
Dampens road vibrations using internal rubber cords for a progressive, smooth ride.
Pre-Greased Hub Assembly
Ready to install with 5-lug hub, bearings, and seals already matched to the spindle.
Heavy Duty Mounting Plate
4" x 4" plate with 3/4" bracket thickness and 3" center-to-center hole spacing.
Compact Footprint
An overall length of 14-1/2" makes this unit ideal for narrow or specialized trike frames.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 1449546 |
| Capacity | 250 lbs (500 lbs pair) |
| Bolt Pattern | 5 on 4.5" |
| Start Angle | 45° Down |
| Spindle Size | 1" Bearings |
| Seal Size | 1-1/4" |
| Mounting Plate | 4" x 4" |
| Hole Spacing | 3" Center-to-Center |
Fitment / Application
| Category | Details |
|---|---|
| Orientation | LEFT Side (Driver's Side) |
| Primary Use | Motorcycle pull-behind trailers |
| Secondary Use | Lightweight campers & trikes |
| Safety Note | Do not exceed 500 lb combined capacity |
Included Components
| Quantity | Item |
|---|---|
| 1 | 250 lb Left Side Torsion Half Axle Unit |
| 1 | 5 Lug Hub with 5 on 4.5" Pattern (Installed) |
| 5 | Standard Trailer Lug Nuts |
