Seven Sola frame from 1999. I still love the ride of the custom TI frame. Updates I've made over the years are the RockShox SID SL (bent steerer tube of Manitou fork after a crash), Panaracer Fire XC Pro 2.1 (Kenda Klimax Lites are great for racing, but wanted a little more cushion), Salsa QRs, and Bontrager front wheel (lost my Chris King hubbed front wheel off the top of my car driving down to Sea Otter a few years ago). XTR still works well after a lot of abuse.