ISC Reflex

[parkertrees]

Had mine for 6 weeks now, been running it since early jan-ish.

 

I've gone back to my spiderjack3 for double rope work. The one handed self tending of the SJ3 is unmatched. I used to climb on a zig-zag (non srt original one) and the Reflex reminds me of that in the way it handles, albeit slightly bulkier.

 

SRT its nice to use, i just don't find I'm anywhere near as quick around most standard trees with it as I am with the SJ3. I'm sure with some practice that would improve, but for now its going to be my "Big ass tree i want to access easily" device rather than my day to day climbing device.

[Fredward]

On 13/02/2026 at 01:57, kram said:

 

 

I'd have thought that those running the climbing comp would have a better understanding on equipment.

 

The 12kN rating is no suprise, a device like this will slip long before it breaks. 

 

Thanks for reply, I guess it early days, often these things aren't accepted at the comps for a while (at least here). Not that I expect it to be particularly popular for competition climbing, I feel like it's more of a 'jack of all trades' kind of device, but I love it for everyday work. 

 

After my previous post I actually stumbled upon that zigzag certification document. It's interesting that the reflex manual states to be used in conjunction with a class A descender. How does that work with the legal frameworks in the UK, and does the same apply to other devices like the zigzag? 

 

I remember looking into the ratings of other devices, the akimbo is 23kn MBS, but interestingly I think the reflex had a higher WLL than the others, I guess the 12kn MBS is all that is required for the Class C EN certification so that's where they stop? Like you say in a real world situation the rope is just going to slip. I'm not sure that the zigzag has a MBS printed on it?

[Joe Newton]

1 hour ago, Fredward said:

 

Thanks for reply, I guess it early days, often these things aren't accepted at the comps for a while (at least here). Not that I expect it to be particularly popular for competition climbing, I feel like it's more of a 'jack of all trades' kind of device, but I love it for everyday work. 

 

After my previous post I actually stumbled upon that zigzag certification document. It's interesting that the reflex manual states to be used in conjunction with a class A descender. How does that work with the legal frameworks in the UK, and does the same apply to other devices like the zigzag? 

 

I remember looking into the ratings of other devices, the akimbo is 23kn MBS, but interestingly I think the reflex had a higher WLL than the others, I guess the 12kn MBS is all that is required for the Class C EN certification so that's where they stop? Like you say in a real world situation the rope is just going to slip. I'm not sure that the zigzag has a MBS printed on it?

The ZZ has a WLL of 140kg.

 

Like you say the Reflex is 200kg

 

Both WLL are in MRS configuration

[Rupe]

On 12/02/2026 at 11:32, Mark Bolam said:

Sounds good so far Rupe.

Get a vid up if you can.

Welcome