Partially echo Scotroutes comment about avoiding the weekend closest to the solstice- ‘my’ runners will be there in force on the Saturday but will be out of the Way by Sunday. We start from Milngavie at 0100 on the 18th. Keep to the classic trail over Conic, through Balmaha & Rowardennan; recent improvements here have made large sections of this into a quick blue with occasional water bars. There are a few stairs and some tricky rock clambers here and also after Inversnaid but contrary to some comments, you will still ride a fair bit of even the most difficult sectors. If you can be bothered, it’s sensible to take light knee pads. You’ll be very tired by the time you get to the Devil’s staircase and the descent to KLL has been known to claim victims; it’d be a shame to pull up here with a bashed knee..
Spares? Tubes, gear cable, chain quick-links and a mech hanger. It’s rarely so mucky that brake pads are going to feel threatened. Most of the going after Carmyle Cottage in Glen Falloch is good to fast.
I’d also echo the comments about the only nav issues being right at the start. Take your time here and you’ll soon get used to spotting the wooden marker posts. When you get to the head of Loch Lomond, stop beside the post with a little round metal cap on its head, just above the trail on the hillside. Look back down the loch for a moment, savour the view and say hi to Dario.