This efficient double pulley is for travel along ropes and cables.

The TANDEM SPEED is the fastest of the carriage pulleys. It is specifically designed for lower-angle Tyroleans. This pulley provides excellent durability with its stainless steel sheaves which are mounted on sealed ball bearings for sustained speed, independent of the wight of the person, temperature, or humidity. The attachment point accepts up to three carabiners to facilitate use.

Specifications:

• Maximum allowable speed: 20 m/s

• Maximum cable diameter: 12 mm

• Certification(s): CE EN 12278, UIAA

*Per Petzl, The TANDEM SPEED Instructions for Use no longer indicates compatibility with cable. However this pulley has stainless steel sheaves, which still allows it to be used on cable up to 13mm in diameter, for any use except an Adventure Park environment, while respecting the information in the Instructions for Use.

The ACCT put out a notice of use for the Petzl Tandem Speed Trolley on Aerial Adventure Courses on 4/23/24.