There have been a few threads about Decathlon Simond ropes.
I recently bought a Simond 8.9mm 100m rope from Decathlon for a trip to Chulilla. Having been to Chulilla before I wanted to make the most of the 50m routes without having to do intermediate lower offs.
As we don't really need 100m ropes for climbing in the UK I didn't want to spend too much. The Simond rope was £130. The major brands were all well over £200 for that length of rope. Of course, those ropes might be better in the long term, or have better handling etc., but cost was a factor. I also wanted to give Simond a go just to see what they were like.
8.9mm!! Wow that's a bit thin I thought, I'm not falling on that, I'll let my climbing partner (son) be the guinea pig. As it happened I took the first falls following his beta (bad mistake with a strong 18 yr old) and the rope was held fine in a gri gri 2. After that any misgivings about holding the rope was forgotten. Lowering was also fine without any slippage or scary moments being lowered from 50m plus (that is a long way up!).
We used the rope for both long onsights and redpoints and even after 10 days continuous use there was no visible wear at either end. Some of the routes we did were fairly new with a lot of sharp edges, sharp holds and rough tufa and, even though the rope ran over these, it wasn't affected at all.
Handling was fine, but it is not as soft or supple as some more expensive ropes. That wasn't an issue belaying, but when feeding the rope into a rope bag it did feel a bit stiff at times. However, that characteristic may have contributed to it being harder wearing.
The only other downside I noticed was the rope seemed to get dirtier a bit quicker than other ropes I've used, though I'm not sure why that is. It was possibly picking up dirt from the gri gri, in which case I need to clean my gri gri. The advantage of looking dirty is that after a few days, the rope (lurid pink!) didn't look like some mutated caterpillar snaking it's way up the rock.
Personally I was happy with the rope and would buy one again.
TJB.