[. . . ] [. . . ] With its ALUXX SL frameset, Defy is lighter, stiffer and better riding than many composite bikes on the market. XS, S, M, M/L, L, XL Red/Brushed/Black ALUXX SL-Grade Aluminum Advanced-Grade Composite, Alloy OverDrive Steerer N/A Giant Connect, 31. 8 Giant Connect Giant Connect SL Composite, 30. 9 Selle Royal Seta M Not Included Shimano 105 Shimano 105 Shimano 105 Tektro Giant Specific TK-710, Dual Pivot Shimano 105 Shimano 105 12x25, 10-speed Shimano 105 FSA Gossamer MegaExo, 30/39/50 FSA MegaExo, External Mavic CXP22 Formula sealed Cartridge Bearing 24/28h SAPIM Race, 14/15g Kenda Kriterium, 700x25 Key Upgrades (over Defy 2) -- 10-speed Shimano 105 shifting with FSA Gossamer triple ring crankset -- Shimano 105 cassette -- Selle Royal Seta M saddle frame geometry Actual Frame Size centimeters XS 43. 0 S 46. 5 M 50. 0 M/L 53. 5 L 55. 5 XL 58. 5 383562 383563 383564 383565 383566 383567 Part Number Head Angle degrees 71. 0 72. 0 72. 5 72. 5 72. 5 72. 5 Seat Angle* degrees 74. 0 74. 0 73. 0 73. 0 72. 0 72. 0 Toptube** centimeters 51. 5 53. 0 54. 5 56. 0 57. 5 59. 5 Headtube centimeters 12. 5 14. 5 16. 5 18. 5 20. 5 22. 5 Chainstay centimeters 42. 0 42. 0 42. 0 42. 0 42. 0 42. 0 Wheelbase centimeters 98. 3 99. 0 99. 0 100. 5 100. 8 102. 8 Standover Height*** inches 29. 0 29. 7 30. 6 31. 1 32. 0 32. 8 *Seat angle is actual **Toptube is measured from the center of the headtube horizontally back to the top of the effective extension of the seattube ***Standover height is based on the largest size tire that will fit the bike, not necessarily the included size tire [. . . ] [. . . ]