Ensuring that your new Tarmac is properly fit to you is an important step in preparing for your first ride.  Your Authorized Specialized Retailer will be able to provide a basic fit, ensuring that you are able to ride your Tarmac comfortably and efficiently. Specialized also offers Retül Fit, a data-driven bicycle fitting tool designed to improve comfort, prevent injury, and increase performance.

Retül can help you estimate your Tarmac bike size and saddle height here

Frame Geometry

Detailed measurements can be found in the geometry chart below.

 Click here to expand...

Frame Size

Crank length165mm165mm170mm172.5mm172.5mm175mm175mm
Stem length70mm80mm90mm100mm100mm110mm110mm
Seatpost length300mm300mm300mm380mm380mm380mm380mm
Head tube length93mm102mm113mm131mm151mm178mm198mm
Head tube angle 70.5°71.75°72.5°73°73.5°73.5°74°
BB height 266mm266mm266mm268mm268mm268mm268mm
BB drop74mm74mm74mm72mm72mm72mm72mm
Fork length, full366mm
Fork rake/offset47mm47mm47mm44mm44mm44mm44mm
Front center572mm574mm577mm579mm592mm606mm613mm
Chainstay length410mm
Bike stand-over height723mm735mm746mm768mm786mm808mm834mm
Seat tube length435mm447mm458mm475mm496mm517mm547mm
Seat tube angle 75.5°75.5°74°74°73.5°73.5°73°
Top tube length (horizontal)496mm509mm531mm541mm563mm577mm595mm