As we watch enduro bikes slide further and further into recliner chair geometries and absurdly squishy travel, Santa Cruz's willingness to let the Tallboy Carbon CC XTR Complete Mountain Bike exist as an almost perfect ideal XCtrail machine is refreshing. The combination of a consistent pedaling platform and the aggression of 29in wheels mean the Tallboy makes enduro sleds look like sluggish toys on climbs, and the surprisingly eager Virtual Pivot Point suspension pulls all mountain capabilities out of a four inch rear end that the chairlift crowd might mistake for mole hill riding. For cyclists who insist on being the engine both up and down, the Tallboy and Shimano's climb friendly XTR double drivetrain are the only lift pass needed. Unlike much of its other frames, Santa Cruz didn't fiddle with the Tallboy's geometry across model years. Instead, the California based manufacturer looked at ways to shave weight and improve stiffness. The resulting frame is significantly lighter than comparable designs on the market. These gains are owed primarily to Santa Cruz's inimitable Carbon CC frame construction, which features a higher modulus carbon than the Carbon C model, so less material is required to hit the same strength and stiffness numbers. The chassis is lighter, so fewer watts are required to propel it, and the increased stiffness means those watts are transferred more efficiently. The frame's two carbon triangles are built as whole pieces rather than glued together from disparate bits. This saves weight and increases structural integrity by allowing Santa Cruz to wrap carbon continuously through and around key junctures, eliminating the artificial stress points that result from bonded construction methods while saving weight by requiring less material. Finally, the carbon is also compacted from the inside and the outside for a more even finish that avoids any structural defects, excess material build up, and resin pooling for you guessed it even more w...