30-day Unconditional Guarantee
If for any reason you’re not 100% happy with your online order from trekbikes.com, you can return it in like-new condition within 30 days. No questions asked.
Learn moreDon’t forget your pedals
This bike doesn’t come with pedals because you’ll have a better time on your new bike if you choose your own. See the pedal guide to find the best pedals for your riding style. We recommend clipless road pedals for control and efficiency.
See the guideMade for Madone
Dial your Madone for style and speed with, bottles, cages, pedals, and more, with Madone-compatible accessories.
Shop nowCarbon Care Wheel Loyalty Program
Every set of Bontrager carbon wheels is backed by the Carbon Care Wheel Loyalty Program. In the unlikely event that you damage your Bontrager carbon wheels within the first two years of ownership, we’ll repair or replace them for free.
Learn more500 Series OCLV
500 Series OCLV achieves a superb balance of light weight, strength, and stiffness that's perfectly suited to the sophisticated frame technologies that distinguish Trek frames.
Learn moreRoad Race geometry and fit
Madone Gen 8's positioning helps you ride your fastest by keeping you tucked out of the wind while still being accessible enough for a range of rider fits.
Invisible cable routing
The brake and shift cables of the most aerodynamic bike are routed through the frame for the ultimate in sleek, aerodynamic performance.
T47 Bottom Bracket
Equipped with a threaded T47 bottom bracket. In addition to being super reliable and easy to service, this system offers extra stiffness for better power transfer and pedaling efficiency.
Blendr stem
Bontrager stem technology lets you clip your gear directly to the stem for clean looks, maximum user friendliness.
Learn moreWarrantied for life
Carbon wheels can lighten your ride and improve your performance—and when you ride Bontrager, your investment is protected. All Bontrager carbon wheels are backed by a lifetime warranty for the original owner.
Learn moreBlendr-compatible stem
Bontrager Blendr stem technology lets you clip your gear directly to the stem for clean looks, maximum user friendliness.
Learn moreHow tall are you?
To measure your height, stand straight up, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.
What is your inseam?
How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inseam measurement. Your inseam is very important to your final bike size so please measure carefully.