The Grivel G20/G22 Twin Bars Pair are a centre bar system for G20 and G22 crampons, designed to cope with modern semi flexible boots. 

More comfortable to walk in, due to the absence of spikes under the centre of the foot, the Grivel G20/G22 Twin Bars Pair have been designed to fit the new breed of semi flexible mountain boots like the Scarpa Phantom series, or any boots that have a large hollow in the instep.

A set of these is now included free with all G20 and G22 crampons.