There are 8 key climbs - many of them longer than is usual on a sportive, 5 climbs are over 2km long (5km+ for the longest) and all 8 gain around 100m or more (269m for the highest).
Notable/notorious climbs include Abbey-cwn-Hir, the Elan Valley and Glascwm - the leg-breaking 25% ramp just after 100km.
Pictures from around the course on Flickr.com
Classic route stats:
|Unit||Max Grade||Max single climb||Longest hill||Total Gain|
|Imperial||1 in 4||882ft||3.3 miles||8,700ft|
*All stats drawn from Strava