Sorceress Eagle 90Description The Surly Sorceress Eagle 90 is a modern trail hardtail built for steep descents, flow trails, techy singletrack, and riders who want one steel mountain bike that can be rowdy, playful, and efficient on the climb. Surly builds it around a Chromoly frame with geometry designed for a 140 mm suspension fork, combining a long front center, steep seat tube angle, and slack head tube angle for stability, traction, and responsive handling on