It's clear SE Bicycles set out to build an Olympic level frame given the use of 6066 Aluminum Floval Tubing and their race ready geometry. But that's not where they stopped with the PK Ripper Elite this Ripper is spec'd with parts that, like the frame, don't lose focus on the goal of winning. Take the wheelset, for example, the rear is a 36H Black Sheep for durability, with a 32H Alienation Deviant front to keep weight low so, you can stack on track time without sacrificing speed. Please Note: This bicycle does not ship assembled. It's recommended that all SE Racing bikes be assembled by a qualified mechanic. Improper assembly of your SE Racing bicycle may lead to premature wear, failure of individual components, or possible personal injury. Failure to do so may also void the manufacturer warranty.