Fit & sizing /

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

Display measurements in

Geometry

  15.5 in 17.5 in 19.5 in 21.5 in
Actual Frame Size 15.5 in 16.5 in 18.5 in 20 in
Effective seat tube angle 68.5 ° 68.5 ° 68.5 ° 68.5 °
ASeat tube 36.7 cm 41.9 cm 47.0 cm 50.8 cm
BSeat tube angle 73.0 ° 73.0 ° 73.0 ° 73.0 °
CHead tube length 10.8 cm 12.2 cm 14.0 cm 15.7 cm
DHead angle 68.0 ° 68.0 ° 68.0 ° 68.0 °
EEffective top tube 54.8 cm 58.5 cm 62.2 cm 64.8 cm
FBottom bracket height 33.8 cm 33.8 cm 33.8 cm 33.8 cm
GBottom bracket drop .5 cm .5 cm .5 cm .5 cm
HChainstay length 42.5 cm 42.5 cm 42.5 cm 42.5 cm
IOffset 4.0 cm 4.0 cm 4.0 cm 4.0 cm
JTrail 9.1 cm 9.1 cm 9.1 cm 9.1 cm
KWheelbase 107.2 cm 111.0 cm 114.9 cm 117.6 cm
LStandover 74.5 cm 73.0 cm 74.0 cm 74.2 cm
MFrame reach 38.1 cm 41.4 cm 44.6 cm 46.7 cm
Assumed fork sag 10% 10% 10% 10%
NFrame rise 54.6 cm 55.9 cm 57.5 cm 59.1 cm
Assumed shock sag 25% 25% 25% 25%
  15.5 in 17.5 in 19.5 in 21.5 in
Actual Frame Size 15.5 in 16.5 in 18.5 in 20 in
Effective seat tube angle 68.5 ° 68.5 ° 68.5 ° 68.5 °
ASeat tube 14.45 in 16.50 in 18.50 in 20.00 in
BSeat tube angle 73.0 ° 73.0 ° 73.0 ° 73.0 °
CHead tube length 4.25 in 4.80 in 5.51 in 6.18 in
DHead angle 68.0 ° 68.0 ° 68.0 ° 68.0 °
EEffective top tube 21.57 in 23.03 in 24.49 in 25.51 in
FBottom bracket height 13.31 in 13.31 in 13.31 in 13.31 in
GBottom bracket drop .20 in .20 in .20 in .20 in
HChainstay length 16.73 in 16.73 in 16.73 in 16.73 in
IOffset 1.57 in 1.57 in 1.57 in 1.57 in
JTrail 3.58 in 3.58 in 3.58 in 3.58 in
KWheelbase 42.20 in 43.70 in 45.24 in 46.30 in
LStandover 29.33 in 28.74 in 29.13 in 29.21 in
MFrame reach 15.00 in 16.30 in 17.56 in 18.39 in
Assumed fork sag 10% 10% 10% 10%
NFrame rise 21.50 in 22.01 in 22.64 in 23.27 in
Assumed shock sag 25% 25% 25% 25%

The right fit is everything.

Your Trek retailer will help you dial in the perfect fit, to give you the absolute best comfort and performance.

Find a retailer