PECO has designed its OO9 Gauge streamline track system with code 80 rail to be used for narrow gauge models built to either 00 (4mm) or H0 (3.5mm) scale and running on 9mm gauge track, this range depicts the slightly worn out old track of a picturesque old railway. It is fully compatible with the Peco OO9 Setrack rigid track system.
If you would like to know more about the different model railway scales and gauges, read this article: Model Railway Scales and Gauges Explained
The next release of OO9 loco's are expected to be the long awaited Bachmann quarry hunslets. Pre-Order your Bachmann Narrow Gauge OO9 Scale Quarry Hunslets here