This is a pre-production Yeti built Schwinn 4-Banger. When I bought it I was told it was originally ridden by Dave Cullinan. I never thought I'd be selling any of my bikes but coincidentally I had the same type of heart failure Cullinan did (no I wasn't riding this one at the time). This bike climbs very well even while sitting. 3 x 9 XT/XTR mix with Rapid Rise. Under 30lbs (as I recall). 26" w/32 spoke front and 26" w/36 spoke rear. Hayes disc brakes front and back. I also have another 4-Banger and a Straight 6. Works perfectly, could use tires replaced.