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"
ASeat tube 36.8cm 41.9cm 44.4cm 47.0cm 52.1cm
BSeat tube angle 73.0 ° 72.5 ° 72.3 ° 72.0 ° 72.0 °
CHead tube length 10.0cm 10.0cm 10.0cm 10.0cm 12.0cm
DHead angle 69.3 ° 69.3 ° 69.6 ° 69.6 ° 69.6 °
EEffective top tube 57.0cm 60.2cm 62.0cm 63.9cm 65.9cm
FBottom bracket height 31.1cm 31.1cm 31.1cm 31.1cm 31.1cm
GBottom bracket drop 5.8cm 5.8cm 5.8cm 5.8cm 5.8cm
HChainstay length 43.5cm 43.5cm 43.5cm 43.5cm 43.5cm
IOffset 5.1cm 5.1cm 5.1cm 5.1cm 5.1cm
JTrail 8.5cm 8.5cm 8.3cm 8.3cm 8.3cm
KWheelbase 107.7cm 110.3cm 111.6cm 113.1cm 115.2cm
LStandover 74.7cm 76.5cm 77.6cm 79.5cm 82.3cm
MFrame reach 38.6cm 41.2cm 42.7cm 44.3cm 45.7cm
NFrame stack 60.0cm 60.0cm 60.1cm 60.1cm 61.9cm
  15.5" 17.5" 18.5" 19.5" 21.5"
Actual Frame Size 15.5" 17.5" 18.5" 19.5" 21.5"
ASeat tube 14.49" 16.50" 17.48" 18.50" 20.51"
BSeat tube angle 73.0 ° 72.5 ° 72.3 ° 72.0 ° 72.0 °
CHead tube length 3.94" 3.94" 3.94" 3.94" 4.72"
DHead angle 69.3 ° 69.3 ° 69.6 ° 69.6 ° 69.6 °
EEffective top tube 22.44" 23.70" 24.41" 25.16" 25.94"
FBottom bracket height 12.24" 12.24" 12.24" 12.24" 12.24"
GBottom bracket drop 2.28" 2.28" 2.28" 2.28" 2.28"
HChainstay length 17.13" 17.13" 17.13" 17.13" 17.13"
IOffset 2.01" 2.01" 2.01" 2.01" 2.01"
JTrail 3.35" 3.35" 3.27" 3.27" 3.27"
KWheelbase 42.40" 43.43" 43.94" 44.53" 45.35"
LStandover 29.41" 30.12" 30.55" 31.30" 32.40"
MFrame reach 15.20" 16.22" 16.81" 17.44" 17.99"
NFrame stack 23.62" 23.62" 23.66" 23.66" 24.37"

Get fit with Trek Precision Fit

Visit your Trek retailer for a personal fitting. It's the best way to improve your performance on the bike.

Learn more