Actual Frame Size 48cm 51cm 54cm 57cm 60cm 63cm
ASeat tube 44.0 48.2 51.2 54.3 57.5 60.5
BSeat tube angle 74.3 ° 74.0 ° 73.8 ° 73.5 ° 73.0 ° 72.8 °
CHead tube length 11.5 12.5 14.0 16.0 20.0 23.0
DHead angle 69.5 ° 70.0 ° 71.0 ° 71.8 ° 71.8 ° 72.3 °
EEffective top tube 52.0 53.1 54.3 55.7 58.3 60.3
FBottom bracket height 27.4 27.4 27.8 27.8 27.8 27.8
GBottom bracket drop 7.5 7.5 7.0 7.0 7.0 7.0
HChainstay length 45.0 45.0 45.0 45.0 45.0 45.0
IOffset 5.2 5.2 5.2 5.2 5.2 5.2
JTrail 7.4 7.1 6.5 5.9 5.9 5.6
KWheelbase 104.1 104.5 104.8 105.2 107.4 108.6
LStandover 71.3 74.1 76.8 79.4 82.6 85.4
MFrame reach 36.8 37.3 37.8 38.3 39.2 40.0
NFrame stack 54.0 55.1 56.5 58.7 62.5 65.5
Actual Frame Size 48cm 51cm 54cm 57cm 60cm 63cm
ASeat tube 17.32 18.98 20.16 21.38 22.64 23.82
BSeat tube angle 74.3 ° 74.0 ° 73.8 ° 73.5 ° 73.0 ° 72.8 °
CHead tube length 4.53 4.92 5.51 6.30 7.87 9.06
DHead angle 69.5 ° 70.0 ° 71.0 ° 71.8 ° 71.8 ° 72.3 °
EEffective top tube 20.47 20.91 21.38 21.93 22.95 23.74
FBottom bracket height 10.79 10.79 10.94 10.94 10.94 10.94
GBottom bracket drop 2.95 2.95 2.76 2.76 2.76 2.76
HChainstay length 17.72 17.72 17.72 17.72 17.72 17.72
IOffset 2.05 2.05 2.05 2.05 2.05 2.05
JTrail 2.91 2.80 2.56 2.32 2.32 2.20
KWheelbase 40.98 41.14 41.26 41.42 42.28 42.76
LStandover 28.07 29.17 30.24 31.26 32.52 33.62
MFrame reach 14.49 14.69 14.88 15.08 15.43 15.75
NFrame stack 21.26 21.69 22.24 23.11 24.61 25.79

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.