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" 17.5" 18.5" 19.5" 21.5"
Actual Frame Size 15.5" 17.5" 18.5" 19.5" 21.5"
Effective seat tube angle 68.5 ° 68.5 ° 68.5 ° 68.5 ° 68.5 °
ASeat tube 36.7cm 41.9cm 44.5cm 47.0cm 50.8cm
BSeat tube angle 73.0 ° 73.0 ° 73.0 ° 73.0 ° 73.0 °
CHead tube length 10.8cm 12.2cm 13.2cm 14.0cm 15.7cm
DHead angle 68.0 ° 68.0 ° 68.0 ° 68.0 ° 68.0 °
EEffective top tube 54.8cm 58.5cm 60.5cm 62.2cm 64.8cm
FBottom bracket height 33.8cm 33.8cm 33.8cm 33.8cm 33.8cm
GBottom bracket drop .5cm .5cm .5cm .5cm .5cm
HChainstay length 42.5cm 42.5cm 42.5cm 42.5cm 42.5cm
IOffset 4.0cm 4.0cm 4.0cm 4.0cm 4.0cm
JTrail 9.1cm 9.1cm 9.1cm 9.1cm 9.1cm
KWheelbase 107.2cm 111.0cm 113.1cm 114.9cm 117.6cm
LStandover 74.5cm 73.0cm 73.0cm 74.0cm 74.2cm
MFrame reach 38.1cm 41.4cm 43.1cm 44.6cm 46.7cm
Assumed fork sag 10% 10% 10% 10% 10%
NFrame stack 54.6cm 55.9cm 56.8cm 57.5cm 59.1cm
Assumed shock sag 25% 25% 25% 25% 25%
  15.5" 17.5" 18.5" 19.5" 21.5"
Actual Frame Size 15.5" 17.5" 18.5" 19.5" 21.5"
Effective seat tube angle 68.5 ° 68.5 ° 68.5 ° 68.5 ° 68.5 °
ASeat tube 14.45" 16.50" 17.52" 18.50" 20.00"
BSeat tube angle 73.0 ° 73.0 ° 73.0 ° 73.0 ° 73.0 °
CHead tube length 4.25" 4.80" 5.20" 5.51" 6.18"
DHead angle 68.0 ° 68.0 ° 68.0 ° 68.0 ° 68.0 °
EEffective top tube 21.57" 23.03" 23.82" 24.49" 25.51"
FBottom bracket height 13.31" 13.31" 13.31" 13.31" 13.31"
GBottom bracket drop .20" .20" .20" .20" .20"
HChainstay length 16.73" 16.73" 16.73" 16.73" 16.73"
IOffset 1.57" 1.57" 1.57" 1.57" 1.57"
JTrail 3.58" 3.58" 3.58" 3.58" 3.58"
KWheelbase 42.20" 43.70" 44.53" 45.24" 46.30"
LStandover 29.33" 28.74" 28.74" 29.13" 29.21"
MFrame reach 15.00" 16.30" 16.97" 17.56" 18.39"
Assumed fork sag 10% 10% 10% 10% 10%
NFrame stack 21.50" 22.01" 22.36" 22.64" 23.27"
Assumed shock sag 25% 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.

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