My Cart


PETZL Tandem Pulley

PETZL Tandem Pulley P21
PETZL Tandem Pulley P21SPE

Inline Pulley for Tyrolean Traverse


The TANDEM is a double pulley designed for Tyrolean traverses. The TANDEM has aluminium sheaves mounted on self-lubricating bushings for efficiency. The TANDEM SPEED has stainless steel sheaves mounted on sealed ball bearings and is designed for cable or rope. They both accept up to three carabiners to facilitate maneuvers.



  • Rope compatibility: diameter: 13 mm or less
  • Sheave diameter: TANDEM 21 Millimetre, SPEED 27.5 Millimetre
  • Maximum working load: 10 KiloNewton
  • Weight: TANDEM 195 Gram, SPEED 270 Gram
  • Certification(s): CE EN 12278

Hello You!

Join our mailing list