Lowered the saddle, and back of knee/upper calf still ached a bit after 25-30km today. Did try a bit of 'stretching' en route, but wasn't really sure what was best. At around 50km it almost eased off a bit. Still a bit tight a few hours after my 60km. Wondering whether I should seek a physio on this, just to nip whatever it is, in the bud.
Left leg is absolutely fine. Actually it's probably not a knee issue as such, probably more muscle ligaments attaching in that area. Not sure though. Probably need to partake of Ibuprofen or summat for a 200km.