I built this Redline Proline XL with the factory Frame, Fork, Cranks and seat clamp. Every other component is higher grade than what comes on the factory bike. Crupi Rhythm wheelset (radial laced front), S&M bars, Maxxis Torch tires, FSA headset, Dura-Ace BB, Tangent Pivotal saddle, Flight chainring, adjusters and grips (with ODI integrated lever). Ready to race at an Expert level. Only ridden on one practice session at an indoor track and always kept indoors. Immaculate except one small paint chip on the frame from building it.