Only ridden Scottish trail centres, and there’s hardly any baw-busting climbs on the waymarked routes. Understandably, they don’t tend to be popular features. There’s plenty of unpleasant, hard-working grinds, mind – but few of the ‘I’m only getting up this 6 times out of ten’ real bastids. I’ve heard Golspie has a nasty one, but haven’t ridden up there myself.
Glentress and Innerleethen are both built on steepish hills, so there’s plenty of punishing climbs off the beaten track. As far as the waymarked routes go, at GT, slightly off the black route, if you go down to the white house in Shieldgreen there’s a track that climbs up to meet the black climb to the radiomast. Doing this in a oner straight up the hiking trail to the mast would be brutal.
Climbing up to the DH start at Innerliethen is tough at the end – series of steep switchbacks that would have most people walking.