US$ 47.24
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"Sum" Product Description

Rope Compatible 9.1 mm-10.5 mm
Approx. Weight 260 g
Recommended Use High Mountaineering & Expeditions
The SUM is a new generation belay descender device designed to belay the leader or the second in indoor wall climbing or on well-protected sport routes.

It is designed to be used with a UIAA dynamic single rope from 9.1 mm to 10.5 mm in diameter, which makes it unique on the market.

Thanks to its ergonomic and lightweight design, the SUM is a belay device which is not only robust and secure, but also easy to use.

As an innovative product, the SUM by FADERS has been worldwide patented.

It comes with a 'Belay Positioner' which assures that de carabineer always works in the correct position.

  • Self-braking
  • Braking strength: 140 daN
  • For use with single dynamic ropes from 9.1 to 10.5mm
  • Includes Belay Positioner
  • Approx. weight: 260 g.

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If you have any queries, please contact one of our technical advisors.

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Medium rating based on the opinion of 5 customers:

19 Dic 2012
Sent by bombardillo
Meilleur appareil d'assurage pour donner du mou rapidement au premier et pour son blocage hyperfiable de la corde en cas de chute, plus sûr et pratique que le gri-gri et le cinch, à condition d'utiliser le bon mousqueton (cf video) et une corde assez fine. Descente en moulinette assez délicate, à déconseiller pour le rappel et l'assurage sur cordes grosses (plus de 10mm, surtout si elles sont vieilles, p.ex. en salle) Inbattable et excellent pour assurer un premier de cordée qui grimpe en tête sur corde jusqu'à 10,2mm, mais pas pour la moulinette et le rappel.
09 May 2007
Sent by dboillos
Nunca se bloqueara, normal, al tirar hacia atras de la cuerda el sistema no funciona. Por lo tanto no frena en todas las posiciones ya te lo dice en las instrucciones. Cuando alquien se cae hay que soltar el aparato. Los novatos cuando se acojonan apretan las manos como locos, asi me cai yo con el grigri, se asustaron y tiraron de la palanca mientras me descolgaban. El grigri tiene fallos pero con un poco de practica se solucionan el sum no me convence nada. Traduccion me he comprado un grigri.
13 Jul 2006
Sent by Anonymous
Mas robusto que el grigri, vas mas pillado y mas comodo de utilizar.
26 Ene 2006
Sent by Anonymous
Es cojonudo, hace todo lo que el Grillo, pero ademas pilla cuerdas estrechas, yo tengo una de 9.6 y PM. para dar cuerda no necesitas hacer globo, no te pilla y no se tiene que mantener la palanca apretada para dar cuerda bien: asi, si te asegura un novato no te la juegas. Parece mas dinámico y pincha bien. Descolgando se controla la palanca perfecta. Para rapelar o bajar tiene su practica, pero se puede poner la cuerda suelta para arriba o tensa abajo y regular perfecto.
20 Ene 2006
Sent by witi
va de puta madre pa las cuerdas finas a la hora de asegurar pero pa rapelar y vajar al primero es muy incomodo .
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