Gravity Edge Manual Zip Hot (Validated 2025)

In manual systems, the rider or operator uses a friction-based brake. Leather welding gloves or specialized "picket" brakes are used to create drag on the cable.

Use a dry silicone spray on the cable. Avoid grease, as it traps grit which acts like sandpaper on your trolley wheels.

For a standard zip line, a 3% to 6% grade is typical. A "hot" line often pushes toward 8%, requiring advanced braking systems. gravity edge manual zip hot

You must account for cable sag. A line that looks straight will dip significantly under a rider's weight, creating an uphill climb at the end that acts as a natural gravity brake. 2. Equipment for a "Hot" Run

This involves timing your manual release so that gravity does the work. By letting off the brake at the lowest point of the cable sag, you use the final "upward" slope of the line to bleed off speed naturally. 4. Maintenance and Safety (Managing the "Hot" Wire) In manual systems, the rider or operator uses

Using a heavy-duty leather glove, the rider applies pressure behind the trolley. Warning: Never grab the cable in front of the trolley.

The "Gravity Edge" is the mathematical sweet spot where the slope of your cable provides enough momentum to reach the end of the line without overshooting the landing platform. Avoid grease, as it traps grit which acts

After a high-speed run, allow the trolley sheaves to cool. Touching a "hot" trolley immediately after a 500-foot sprint can cause contact burns. 5. Summary of the Gravity Edge Setup