Chris Fuller posted a discussion

For Sale – Felt F4X bike.Used as my pit bike – limited miles.Available as Ultegra cable actuated - $1200 or Ultegra Di2 - 1700.Wheels available but not included in price (see below). Frame:Felt Cyclocross UHC Performance MMC Carbon Fiber frame w/ 3KP weave, shoulder friendly top tube, InsideOut internal molding process, aluminum BB30 Shell, internal electric or mechanical cable routing, aluminum dropouts & replaceable derailleur hangerFork:Felt Cyclocross UHC Performance monocoque fork; 100% Carbon Fiber blades w/ aluminum ControlTaper 1.125" - 1.5" steerer tube, crown, & dropoutsDrivetrain:Shimano Ultegra STI, Shimano CX70 Ø31.8 mm, Shimano Ultegra, FSA Gossamer Cross BB30, 46/36T, FSA Team Issue 10-speed, Shimano, 12-28TComponents:Avid Ultimate BrakesHandlebar - Felt CXR,Stem - Felt SL 3D forged 6061 aluminum w/custom Cr-Mo bolts,Seatpost - Felt CXR.2 forged 6061 aluminum,Saddle – Felt Wheelset: None included in price – Options available: Ksyrium clincher with cassette and Hutchinson tubeless tires - $250Bontrager Aeolus Tubular with cassette and Challenge Fango 33 tires - $500 Finish:Matte CarbonSize:53cmWeight:18.72 lbs | 8.51 kg (according to the catalog)Geometry: Size53Head Tube Angle72Seat Tube Angle73.5Top Tube Horizontal540Top Tube Center to Center525Head Tube Length130Seat Tube Center to Top530Seat Tube Center to Center470Bottom Bracket Drop65Chainstay Length430Front Center585Wheelbase1007Rake45Standover Height779Reach377Stack549See More