TRACK FASTENINGS – 5mm (3/16") countersunk fasteners at 100mm (3 15/16") centres. STOP HOLES – 50mm (1 31/32") centres MINIMUM CURVE RADIUS For 50mm (1 31/32") car. Min horizontal 'A' curve radius = 1500mm (59"). Min horizontal 'B' curve radius = 1500mm (59"). For 57mm (2 1/4") car. Min horizontal 'A' curve radius = 1500mm (59"). Min horizontal 'B' curve radius = 1500mm (59"). For 70mm (2 3/4") car. Min horizontal 'A' curve radius = 2500mm (99"). Min horizontal 'B' curve radius = 3000mm (118"). For 85mm (3 11/32") car. Min horizontal 'A' curve radius = 3500mm (138"). Min horizontal 'B' curve radius = 4500mm (177"). For 100mm (3 15/16") car. Min horizontal 'A' curve radius = 5000mm (197"). Min horizontal 'B' curve radius = 5500mm (217"). For 148mm (5 27/32") car. Min horizontal 'A' curve radius = 11000mm (433"). Min horizontal 'B' curve radius = 15000mm (591").

Lightweight track has milled slots between mounting holes, achieving significant weight reduction.