Box Hill, hairpin by hairpin.

The print colours each kilometre by its gradient in five bands, from under 3% to 12% and over, and all three of Box Hill's readings, 5.4, 5.4 and 4.1%, fall within the same band, between 3 and 6%. A climb that changes pace shows as stripes of different colour; this one prints as a single shade from foot to top.

The print does not draw the Salomons Memorial viewpoint, or the café beside it, because it holds only the road and the slope it climbs. A named point placed on the viewpoint in the Studio puts it on the map, where the line ends.

No. The line on the map is the Zig Zag Road itself, from Mickleham to the junction at the top, and the profile measures those 2.4 km. The Olympic road races climbed it as one part of a longer Box Hill circuit, and the rest of that loop is not drawn.

The road is OpenStreetMap’s, as Overture Maps publishes it, traced from Mickleham to Box Hill. The heights are the Terrain Tiles Mapzen built and AWS Open Data hosts, read every ten metres along the road, with the foot set to 54 m and the top to 180 m, the signposted heights; each kilometre’s gradient is measured on that line. Where the road runs through forest the elevation data can read a kilometre a point or so steeper or gentler than the tarmac, so the figure for a single kilometre is close rather than exact; the length, the height gained and the average are the climb’s.

Yes. Type it in the Studio with the day you rode it, or bring in your Strava rides and choose the one: the Studio reads your time from the foot to the top off the track, rather than the whole ride. It sits in the corner of the print, where the other prints keep their statistics, and comes off again with one tap.

Not as The Climb Print yet: each climb is traced from its road and checked against its published figures and its numbered bends before it is offered. Any mountain can be The Mountain Print, though, drawn in its own contour lines with the ride you recorded on Strava laid over it.