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Petzl - Trigrest tested
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Question from Peter
16.02.2026
What are the dimensions of these?
Wondering will they fit on old axes I have (charlet-moser axar). The Grivel Trigger (https://www.bergfreunde.eu/grivel-trigger/) are 20mm x 30mm. But there are no dimensions on this description here.
This is what customers from around the world say:
Christopher
21.04.2023
Yes, I would recommend this product to a friend
Hi Peter,
The GRIVEL Trigger, a follow-up to the TOP MACHINE from 2000, is now available for shafts of all diameters: in yellow for all shafts up to 20 x 30 mm in diameter and in black (which we have available) for larger diameters. The trigger can be fixed at any point on the shaft and distributes the weight across all fingers.
The Petzl Trigrest is compatible with RIDE, GLACIER, GLACIER LITERIDE, SUMMIT, SUM'TEC and GULLY axes
Unfortunately, nodimensions are known and we do not have the possibility to measure it. Only the compatibility is known and the shaft dimensions of all those options are also not known.
I would think it highly likely that the Trigrest will not be suitable for your axe because of the design , how it is to be used and the design of the shaft of those axes it can be used on. I think the Grivel Trigger is prbably your best bet and if it comes up too large it can always be spaced out a bit to fit.