Actual Frame Size 13" 16" 18" 19.5" 21"
ASeat tube 33.0 40.6 45.7 49.5 53.3
BSeat tube angle 74.0 ° 73.5 ° 73.5 ° 73.0 ° 73.0 °
CHead tube length 11.0 11.0 13.0 15.0 17.0
DHead angle 70.5 ° 70.5 ° 70.5 ° 70.5 ° 70.5 °
EEffective top tube 52.4 55.0 56.5 58.0 59.0
FBottom bracket height 28.7 29.1 29.3 29.3 29.3
HChainstay length 43.0 43.0 43.0 43.0 43.0
IOffset 4.0 4.0 4.0 4.0 4.0
JTrail 7.6 7.6 7.6 7.6 7.6
KWheelbase 101.9 104.0 105.7 106.8 107.9
LStandover 70.5 73.8 77.2 79.9 82.7
Actual Frame Size 13" 16" 18" 19.5" 21"
ASeat tube 12.99 15.98 17.99 19.49 20.98
BSeat tube angle 74.0 ° 73.5 ° 73.5 ° 73.0 ° 73.0 °
CHead tube length 4.33 4.33 5.12 5.91 6.69
DHead angle 70.5 ° 70.5 ° 70.5 ° 70.5 ° 70.5 °
EEffective top tube 20.63 21.65 22.24 22.83 23.23
FBottom bracket height 11.30 11.46 11.54 11.54 11.54
HChainstay length 16.93 16.93 16.93 16.93 16.93
IOffset 1.57 1.57 1.57 1.57 1.57
JTrail 2.99 2.99 2.99 2.99 2.99
KWheelbase 40.12 40.94 41.61 42.05 42.48
LStandover 27.76 29.06 30.39 31.46 32.56

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