Won't go into too much detail now as there's plenty written about these rides elsewhere on the internet. Notably, see the Fat Hippy's Blue Mountains rides (link below).

The easiest ride you could probably do here would be to drive to The Oaks Picnic area (on the main firetrail) as there are no locked gates to get in your way. Should be OK in a 2WD but after climbing up from the creek crossing the sealed road ends and can get quiet corrugated (which isn't nice to cycle on either). Anyhow, for that easy ride, park up and head to the Nepean lookout and back, around 10Kms round trip of nice undulating track.

Of course, most people will be a little more hardcore and want more distance from this, so see below for a brief overview of the trails.

Access issues

There is a weir at the bottom of the Oaks Firetrail that you would have to cross on the way to Glenbrook from Woodford, or on the way out if you start riding at Glenbrook. This weir can be unpassable after heavy rain so riders should check the NPWS Blue Mountains closures web page:

http://www.environment.nsw.gov.au/NationalParks/parkFireClosure.aspx?id=...

Or contact the NPWS Heritage Centre on 02 4787 8877; open seven days 9.00am to 4.30pm.

The Oaks Firetrail

The main trail running from Woodford to Glenbrook. Get dropped off or take the train to Woodford and ride it in the downward direction only, or do it tough and cycle up then down. Tough climbs in both directions, just more of them heading up. Fantastic single track section to the left of the main firetrail shortly after the gate near the picnic area.

St Helena Track

Very technical trail that splits from main firetrail near the top (about 5Kms in?). See St Helena for more detail.

Nepean Lookout Firetrail

As mentioned above, nice and easy ride to a top view:

Why not take in the Pisgah Rock Trail on the way, it's only an extra 700m one way?

Pisgah Ridge Firetrail

A dormant overgrown firetrail that splits away from Nepean Lookout at a hard right in the road (and there's also a small carpark to the left there). It soon turns into a decending low grade single track. The further you ride the more overgrown it becomes. If you persist to the end you will have a view of the Nepean River.

Red Hands Firetrail

Open to vehicular traffic, Red Hands Firetrail is an easy ride that will bring you to a car park. Here you can find 2 Picnic Benches and a toilet. A walking trail is marked as joining back up to the creek crossing on the main Oaks Firetrail. A 5min walk down the trail will bring you to a small cave protected by Perspex containing Aboriginal Hand Paintings of various age groups. The Paintings can be easily seen when squinting through the Perspex. You are not allowed to ride your bikes on the walking trail so you will have to return the way you came.