O Gauge Rolling Road for Big Boy & Large Engines (2-rail/3-rail)

The Proses RR-O3-10 O Scale Rolling Road is designed for testing, running and maintaining large and extra-long O scale locomotives while they remain stationary.

Based on our standard O Scale Rolling Road, the RR-O3-10 is supplied with 10 rollers, providing the additional support required for locomotives with multiple driving axles and long wheelbases.

Designed for both 2-rail and 3-rail O scale locomotives, it is an ideal workshop and maintenance tool for model railroad enthusiasts who need to test locomotives without running them around the layout.

The locomotive remains securely in position while its driving wheels rotate normally, making the RR-O3-10 ideal for locomotive testing, DCC decoder programming, speed adjustment, troubleshooting, maintenance, running-in and drive wheel cleaning.

A dedicated Rolling Road base plate is included to keep all rollers correctly aligned and provide a stable working platform.

Key Features

Designed for O Scale model locomotives

Compatible with 2-rail and 3-rail operation

Supplied with 10 Rolling Road rollers

Ideal for large and extra-long O scale locomotives

Suitable for locomotives with multiple driving axles

Allows locomotives to run while remaining stationary

Ideal for DCC decoder programming and locomotive testing

Useful for speed adjustment, troubleshooting and running-in

Smooth and stable operation

Reliable electrical pickup

Dedicated base plate keeps rollers correctly positioned

Suitable for workshop, maintenance bench and model railroad layout use

Ideal for Large O Scale Locomotives

Large steam and diesel locomotives often require more roller supports than standard Rolling Road configurations.

With 10 individual rollers, the RR-O3-10 provides the additional capacity required to support long-wheelbase and multi-axle O scale locomotives, allowing the drivetrain and powered wheels to operate freely while the locomotive stays safely in one position.

This makes it particularly useful when working on locomotives that may be difficult or inconvenient to test directly on a model railway layout.

Testing & DCC Decoder Programming

The RR-O3-10 allows you to operate your locomotive under controlled conditions without moving it along the track.

It is ideal for:

DCC decoder programming

Testing locomotive functions

Speed and performance adjustments

Running-in new locomotives

Troubleshooting mechanical or electrical problems

Checking drivetrain operation

Testing lighting and sound functions

Routine locomotive maintenance

Drive Wheel Cleaning

The set also includes 4 drive wheel cleaning accessories, allowing powered locomotive wheels to be cleaned while they rotate under controlled conditions.

This makes it easier to remove dirt and contamination from the wheel surfaces without having to manually rotate or reposition the locomotive.

When wheel cleaning is not required, these accessories can also be used as additional wheel supports.

Set Contents

10 × O Scale Rolling Road Rollers

4 × Drive Wheel Cleaning Accessories

1 × Dedicated Base Plate

A Practical Rolling Road for Your O Scale Workshop

The Proses RR-O3-10 O Scale Rolling Road combines the functionality of our standard Rolling Road systems with the additional roller capacity needed for large and extra-long locomotives.

Compatible with both 2-rail and 3-rail O scale systems, it provides a convenient and reliable solution for locomotive testing, DCC programming, maintenance, adjustment and wheel cleaning without requiring the locomotive to travel around your layout.

Designed and manufactured by Proses Hobby Tools.