I’ve had a RF one for 2 rides now and no sign of it dropping the chain yet. First ride was a mix of conditions, pretty mucky but lots of natural loamy trails in the woods with loads of rocks, roots and steps and stuff. Second ride was Gisburn and its a success if there aren’t any dropped chains on the rocky, blown up, flow sapping trails there*.
Very impressed to be honest. I can understand the logic of narrow/wide stuff but was very sceptical. Whats not to like about it!
* not all the trails there, just the stuff from the top of the Hope line all the way back around to the middle of the 8!