Model Transition Al-Ti Transition Al-Ti Transition TitanFlex-20 TitanFlex-20 Transition TitanFlex-20 Al-Ti
Size X-Small Small Small Medium Medium Small Medium Large Large X-Large
Diagram (click to enlarge) Transition XS thumb   AlTi 650c S thumb Transition 650c thumb  AlTi 650c M thumb  Transition 700c M thumb  tf20 700c S thumb  TitanFlex-20 700c M thumb   Transition 700c Large thumb TitanFlex-20 700c Large thumb   Al-Ti 700c XL thumb
Wheel Size 24" 650c 650c 650c 700c 700c 700c 700c 700c 700c
Wheelbase (cm) 95 96.2 97.6 101 99.8 98 100.5 102.3 103 106.3
Front-to-center (cm) 58.2 57.6 58.9 62.4 59.4 58 60.4 61.9 62.9 64.3
Headtube angle (°) 71° 72.5° 72.5° 72.5° 72.5° 72.5° 72.5° 72.5° 72.5° 73°
Chainstay length (cm) 37 39 39 39 41.4 41 41 41.4 41 43
Standover height (cm) 58.4 73.5 73.6 73.5 78.6 78.3 78.3 78.6 78.3 84.7
Saddle height range (cm) 45-70 65-86 65-86 65-86 71-92 71-92 71-92 71-92 71-92 78-99
Headtube length (cm) 11 11 11 11 13 11.5 12.5 15 13.5 17.5
Bottom bracket height (cm) 25 26.5 26.5 26.5 26.8 26.8 26.8 26.8 26.8 26.8
Fork offset/rake (mm) 38 40 40 40 44 44 44 44 44 44
Fork steerer diameter (") 1 1 1 1/8 1 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8
Trail (mm) 57 56 56 56 53 60 60 53 60 5.8
Weight w/o boom or fork (kg) 1.15 1.32 1.17 1.35 1.25 1.44 1.5 1.32 1.55 1.96
Rider Weight limit (lb) 165 225 210 235 210 235 235 210 235 265
Top-Tube lengths (cm) @73° 50.1 n.a. 55.5* n.a. 57 55.5 58 59.5 60.5 63
Top-Tube lengths (cm) @77 ° 47.9 53.3 54.6 58.2 53.2 51.7 56.1 55.7 58.6 57.9
Top-Tube lengths (cm) @81 ° 43.1 48.1 49.4 53 49.4 47.9 50.4 51.9 52.9 53.9
Stack 42.9 47.2 47.2 47.2 53.5 52.1 52.9 55.5 53.9 57.9
Reach 40.5 39.8 41.1 46.6 39.7 38.7 40.9 41.6 43.1 43.8