Would you recommend these for heavier riders.
I assume that with a deeper rim the 20/24 spoke count wold be fine up to a certain weight class (say 90kg?)
That's been the one complaint we have is that there is no 24/28 version. We've worked with Carbon-Ti to get a 24/28 version done, but right now all of their machines are running at full capacity trying to keep up and get out some new mtb models. Once that's done we can make 24/28 happen but I think that's quite a ways off. As for heavier riders, it really depends on the rims and spokes as well. We did a set of Enve 3.4 on Alchemy hubs a couple years ago for a rider who was 125kgs, (almost 7 feet tall.) And those had to be done in 20/24. They've held up for him, but he's surprisingly easy on equipment. I think 85-90 is probably where I'd put these on the upper end with a stiff rim and thicker spokes, but of course that depends on the rider and conditions.
That's quite the glowing review. How would you compare these to say the Extralites?
I like Extralite and it helps that they are the lightest option available. But I don't consider them to be a daily rider hub for most riders, so I'd not directly compare them. For event wheels the Extralites are a good choice for a lot of riders, but not as a daily driver.
is the need for a little more regular maintenance that produces the caveat as a daily driver?? I know most riders (irrespective of intent) don't get around to appropriately maintaining their equipment.