Actual Frame Size 13.5" 15.5" 16.5" 17.5"
ASeat tube 34.3 36.8 41.9 44.4
BSeat tube angle 73.0 ° 73.0 ° 72.5 ° 72.3 °
CHead tube length 10.0 10.0 10.0 10.0
DHead angle 69.0 ° 69.3 ° 69.3 ° 69.6 °
EEffective top tube 54.1 55.8 60.2 62.0
FBottom bracket height 30.2 30.2 31.1 31.1
GBottom bracket drop 4.8 4.8 5.8 5.8
HChainstay length 42.5 42.5 43.5 43.5
IOffset 4.4 4.4 5.1 5.1
JTrail 8.7 8.5 8.5 8.3
KWheelbase 103.7 105.3 110.3 111.6
LStandover 71.0 72.1 76.5 77.6
MFrame reach 37.0 37.2 41.2 42.7
NFrame stack 56.3 58.3 60.0 60.1
Actual Frame Size 13.5" 15.5" 16.5" 17.5"
ASeat tube 13.50 14.49 16.50 17.48
BSeat tube angle 73.0 ° 73.0 ° 72.5 ° 72.3 °
CHead tube length 3.94 3.94 3.94 3.94
DHead angle 69.0 ° 69.3 ° 69.3 ° 69.6 °
EEffective top tube 21.30 21.97 23.70 24.41
FBottom bracket height 11.89 11.89 12.24 12.24
GBottom bracket drop 1.89 1.89 2.28 2.28
HChainstay length 16.73 16.73 17.13 17.13
IOffset 1.73 1.73 2.01 2.01
JTrail 3.43 3.35 3.35 3.27
KWheelbase 40.83 41.46 43.43 43.94
LStandover 27.95 28.39 30.12 30.55
MFrame reach 14.57 14.65 16.22 16.81
NFrame stack 22.17 22.95 23.62 23.66

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.