Actual Frame Size 19" 15" 17"
ASeat tube 48.3 38.1 43.2
BSeat tube angle 74.0 ° 75.0 ° 74.5 °
CHead tube length 16.0 13.0 15.0
DHead angle 70.5 ° 70.5 ° 70.5 °
EEffective top tube 55.3 53.3 53.9
FBottom bracket height 28.5 28.5 28.5
HChainstay length 44.5 44.5 44.5
IOffset 5.0 5.0 5.0
JTrail 7.0 7.0 7.0
KWheelbase 106.4 105.3 105.5
LStandover 76.7 69.7 73.2
Actual Frame Size 19" 15" 17"
ASeat tube 19.02 15.00 17.01
BSeat tube angle 74.0 ° 75.0 ° 74.5 °
CHead tube length 6.30 5.12 5.91
DHead angle 70.5 ° 70.5 ° 70.5 °
EEffective top tube 21.77 20.98 21.22
FBottom bracket height 11.22 11.22 11.22
HChainstay length 17.52 17.52 17.52
IOffset 1.97 1.97 1.97
JTrail 2.76 2.76 2.76
KWheelbase 41.89 41.46 41.54
LStandover 30.20 27.44 28.82

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.