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Climbing Gear > Belay and Rappel Devices > Auto-Blocking Belay Devices

Faders Sum Belay Device

Weight260 g
Max Diameter (mm)10.5

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Faders Sum Belay Device
4.2 out of 5 based on 5 user reviews.

Cred: 266
Review by somasmith on Jun. 22, 2008
Great for belaying a lead climber. Feeding rope out is a breeze compared to other devices. Easy to use. Quick rope grab. Very safe process with minimal training. Very minimal wear on your rope.
Even though it is clearly marked wich way the rope goes... setting up the rig went against my instinct of how it should work. It took a minute to re-train my brain.

Cred: 420
Review by San Dog Scotty on Aug. 15, 2008
Prett good. Puts less stress on the rope.
Not as intuitive as the GriGri. Not as easy to handle either.

Cred: 5
Review by stimpy02000 on Feb. 23, 2011
I have a collection of belay devices and have tried them all. This is the only one I use for sport or TR. Much easier and safer to belay leader than gri gri. Excellent for belaying someone working a difficult route. It loves catching falls over and over. Simple to rig and easy on ropes. Great on skinnier ropes (9.1-10)
Slightly heaver than a gri gri, but if you are gonna haul a gri gri, this is worth its extra weight. It also takes a little practice to lower/rap. I believe it is rated 9.1-10.5mm, but anything over a 10.1 is a little bit tougher to feed lead.
I wouldn't use this for trad, unless you are really careful. I have 6 different "auto-locking" belay devices and 4 of them sit in a box in my climbing room (the wife has the gri gri on her harness). As far as they go, this is the way to go!

Cred: 1073
Review by scottydo on Sep. 02, 2008
Pretty good. Fairly intuitive and easy on the rope.
Don't use it much.
Gri Gri

Cred: 358
Review by fb_4943815 on Jun. 20, 2008
More friction than I have ever seen, works with almost all rope sizes
Heavy and awkward
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Maximum Diameter (mm)Weight
Sum Belay Device

10.5260 g
Gri Gri 2

185 g
Grigri Belay Device

185 g

170 g

350 g
Gri Gri

225 g
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