SR-2 ribboning along the San Gabriel ridgeline above LA — the canyon-carver’s home turf.
Its tightest bends have a radius of about 59 m and its typical bend about 88 m. The angles are the physics of the corner: the lean a bike needs to hold that line at that speed. Real bikes lean a few degrees more, because a tyre is round. apex measures what you actually did.
Lean is measured by the phone on the bike or in the rider's pocket and checked against the corner itself: how fast the rider went and how tightly the road turned. More roads.