|Gwernant - mile 27|
Gwernant (800ft gained - Strava link) - first serious climb on the 100. Just outside Llangollen, very long and steep.
|Descent to Glyn Ceiriog - mile 29.5|
Watch out for the tricky descent soon after the first climb - some distressed tarmac to begin, then a steep 25% drop to the village.
|Climb out of Llanarmon Dyffryn Ceiriog - mile 36|
|After Llangynog - mile 46|
After Llangynog there's the longest climb on the route - not steep but 4 miles long (1,000ft gained - Strava link)
|Maes y Glyn - mile 69|
Maes y Glyn - new climb added at end of the route planning - a better way up onto the high moors near Moel Morfydd summit (500ft gained - Strava link)- better photos to follow.
|Penbarra - mile 83|
Climb Penbarra - 1.5miles long and 800ft gained (Strava link) - No. 88 in Simon Warren's 100 Greatest Cycling Climbs. Very steep up to the daunting hairpin turn and then a long further climb after.
Maps, stats and GPX downloads all at www.rideclwyd.co.uk
That's it. We recommend that you have a go at some of these climbs prior to the big day (May 24th) - send in your photos and stories of how you do - email Rideventures