Bought a Datura from On-one for £9.99 and I’m impressed. 2.2 mud and wet conditions tyre, spike tread pattern, sticky compound, tubeless ready and thick sidewalls. 850g ish. May be a bit much for what you are doing but I have it on the back of my c456 evo and it’s fine. Such a bargain I bought another and a DHEA for downhill duties. Worth a punt at that price.