Petzl MOBILE Pulley for Hitch Tending

The Petzl MOBILE pulley is a compact, lightweight pulley with swinging side plates that arborists use for hitch tending and quick redirects. Its small size keeps a hitch system short and makes it easy to carry a spare.

Where it fits in

Clipped below your hitch, the MOBILE lets you pull slack through with one hand and keeps the hitch moving as you ascend. Because it is small, it keeps the distance between hitch and bridge short, so you lose less height on each advance.

It is also handy as a quick redirect pulley on a climbing line or for a small haul system, and it weighs little enough that many climbers carry one just in case.

The small size does come with limits. It is not meant for heavy loads or big haul systems, so keep it in its lane and carry a larger pulley for rigging and rescue jobs. For everyday hitch tending and light redirects, though, it is about as easy to carry as a pulley gets, and many climbers keep a second one on a gear loop for those jobs.

Use and inspection

The swinging side plates let you put the pulley on the rope without unclipping everything. Make sure the plates close fully around the rope and that the carabiner is correctly placed through the attachment hole.

Inspect the sheave, axle and side plates before each use, and retire the pulley if it is cracked, deformed or stiff. Use it within Petzl's ratings and instructions and ANSI Z133 practice, and get trained before relying on it. Compare others in micro pulleys.