Actual Frame Size 50cm 52cm 54cm 56cm 58cm 60cm 62cm
ASeat tube 45.3 48.2 49.6 52.5 55.3 57.3 59.3
BSeat tube angle 74.6 ° 74.2 ° 73.7 ° 73.3 ° 73.0 ° 72.8 ° 72.5 °
CHead tube length 10.0 11.0 12.0 14.0 16.0 18.0 20.0
DHead angle 72.1 ° 72.8 ° 73.0 ° 73.5 ° 73.8 ° 73.9 ° 73.9 °
EEffective top tube 52.2 53.5 54.4 56.0 57.3 58.6 59.8
GBottom bracket drop 7.2 7.2 7.0 7.0 6.8 6.8 6.8
HChainstay length 41.0 41.0 41.0 41.0 41.1 41.1 41.2
IOffset 4.5 4.5 4.5 4.0 4.0 4.0 4.0
JTrail 6.1 5.7 5.6 5.8 5.6 5.6 5.5
KWheelbase 97.4 97.7 98.1 98.3 99.2 100.1 101.0
LStandover 69.6 72.0 73.3 75.8 78.3 80.1 82.0
MFrame reach 38.3 38.8 39.0 39.5 40.0 40.4 40.7
NFrame stack 50.6 51.8 52.6 54.9 56.7 58.6 60.6
Seat height minimum 62.5 65.5 68.0 71.0 73.0 75.0 77.0
Seat height maximum 72.5 75.5 78.0 81.0 83.0 85.0 87.0
Actual Frame Size 50cm 52cm 54cm 56cm 58cm 60cm 62cm
ASeat tube 17.83 18.98 19.53 20.67 21.77 22.56 23.35
BSeat tube angle 74.6 ° 74.2 ° 73.7 ° 73.3 ° 73.0 ° 72.8 ° 72.5 °
CHead tube length 3.94 4.33 4.72 5.51 6.30 7.09 7.87
DHead angle 72.1 ° 72.8 ° 73.0 ° 73.5 ° 73.8 ° 73.9 ° 73.9 °
EEffective top tube 20.55 21.06 21.42 22.05 22.56 23.07 23.54
GBottom bracket drop 2.83 2.83 2.76 2.76 2.68 2.68 2.68
HChainstay length 16.14 16.14 16.14 16.14 16.18 16.18 16.22
IOffset 1.77 1.77 1.77 1.57 1.57 1.57 1.57
JTrail 2.40 2.24 2.20 2.28 2.20 2.20 2.17
KWheelbase 38.35 38.46 38.62 38.70 39.06 39.41 39.76
LStandover 27.40 28.35 28.86 29.84 30.83 31.54 32.28
MFrame reach 15.08 15.28 15.35 15.55 15.75 15.91 16.02
NFrame stack 19.92 20.39 20.71 21.61 22.32 23.07 23.86
Seat height minimum 24.61 25.79 26.77 27.95 28.74 29.53 30.31
Seat height maximum 28.54 29.72 30.71 31.89 32.68 33.46 34.25

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorized Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.