Cracking bike that dmd?
Yes my Sram cassette has a 50 tooth at the top.. that's very big!
But Srams rival, Shimano, didn't want to be outdone in the big sprocket war.. and released a 51 tooth sprocket!!
I think the last I'd read... Sram came back recently with a 52!!!??
I can spin up any hill with the range I've got.. but i could just do with a slightly harder gear at the top end.. i do sometimes spin out on a long flat trail. It's no big deal to be fair though.