Hed Belgium Plus .... not cheap though .... I bought a pair from Sigma for £139 each .... these are wide and from what I have read, they are one of the few that are easy to install tubeless .... I'm using Chris King R45 (hubs with the ceramic bearing upgrade
I will use my Specialized Turbo Cotton tyres 24mm (clinchers with thin butyl tubes until they need replacing, then will try the Vittoria Corsa Speed Open TLR tubeless
of note though is that these rims are wide, and people have reported that tyres are a lot wider on these .... you also need to run the tyres at a lower pressure ... here are some of the comments :
Vittoria Diamante Radiale 22mm:
Front 24.6mm 95psi
Panaracer Gravel King 23mm:
Rear 25.6mm 95psi
Specialized Turbo Cotton 24mm:
Front 26.6mm 95psi
Vittoria Corsa CX 23mm:
Front 26.6mm 93psi
Specialized Roubaix Pro 23/25mm:
Front 27.1mm 95psi
Conti GP4000 SII 23mm:
Front 27.2mm 94psi
Vittoria Pave III 25mm:
Front 27.2mm 95psi
Panaracer Gravel King 26mm:
Front 27.7mm 95psi
Conti GP4000 SII 25mm:
Front 28.6mm 95psi
Specialized Roubaix Pro 25/28mm:
Front 29.5mm 95psi
Clement LGG Strada 28mm:
Front 30mm 94psi
Challenge Parigi-Roubaix 27mm:
Front 31mm 93psi
Challenge Strada Bianca 30mm:
Front 32.5mm 94psi
I'm using these wheels on my Giant TCR and by looks of things, I will not be able to buy 25mm or 28mm tyres
and another list showing other rims: