HO Scale Rolling Road / Treadmill for HO Scale Locomotives Spare axles.
- Set of 4 individual roller pairs.
- They come pre-set for 16.5mm or OO/HO track.
- Works on Bo-Bo / Co-Co and Steam Locomotives (for Steam locomotives a set of 6 recommended)
- You simply place them on the track (spaced ready for your locomotive).
- Incredibly versatile, they help with running in, testing and evaluation of locomotive performance.
- DCC and DC Compatible
- 16 Sealed Ball bearings excellent quality
