1400 gram instant engagement enduro rated wheels. Pretty sweet. I’m officially an Onyx fanboy now. Ride like a good set of alloy rims feel wise. Once the ropes are tensioned for the 3rd time they apparently never need to be again. So far I’m about 1 year in they are bombproof. I do run them with inserts. I’m a fan but they aren’t cheap. Would buy again but hopefully won’t need to for 10 plus years.