Eighteen point five minutes

West Kilbride

Pleasant morning but the weather people promised showers so decided not to go too far from home, up to the summit of Kaim to time the downhill from the summit to the road.
From summit to quarry was 6 minutes, stopped for a bit of a snack and to admire the view before setting off on the next section.
Quarry to Glenburn falls 6.5 minutes with a nice final thrill down to the burnside before the short push to the gate and the next section.
Gate to the road surprise surprise another 6 minutes, so that's a grand total of 18.5 minutes of great downhill.

View route here

Pictures here