I'm looking at a Pro 29 frame that has a 44mm headtube, 73mm threaded BB, and a claimed 2.3" rear tire clearance...

Lynskey Pro 29 Hardtail MTB Titanium Frame Size Medium 33191 | eBay

Can anyone tell me what year this frame is?

Also, can anyone that has this frame confirm that 2.3" is as large as you can go in the rear?

Thanks.