Trek Madone SL 5 Gen 8
Trek / Performance Road Bikes
Fast is a feeling. Chase it.
Madone SL 5 Gen 8 is a lightweight aero road bike that brings elite racing tech to a lower price point. It offers similar aero benefits to the pricier Madone SLR Gen 8 models, but with a more economical OCLV 500 Carbon layup and two-piece cockpit with hidden cable routing. A Shimano 105 groupset, alloy handlebars, and alloy wheels keep the price down while still delivering clean mechanical shifting you can trust.
Based on the bike's size chart. Your complimentary baseline fit in store dials in the rest.
In stock today at Roswell
Questions are welcome. No pressure, no bike jargon required.
The ride, not just the specs
Some rides are about the view. Madone rides are about the speed. It's the bike for the days you want to go hard, hold a wheel, and see what you've got.
If you love the sound of a quick road and a fast group, this is the one we'd point you to.
What makes it special
New light and fast aero tube shaping paired with light-yet-economical 500 Series OCLV Carbon makes Gen 8 our lightest Madone SL Disc f/s ever and the ideal climbing bike.
Revolutionary new Full System Foil aero tube shapes improve airflow over the whole bike while maintaining the lightness climbers crave. Plus, the bike’s entire rider system was meticulously designed and rigorously tested to be faster everywhere.
We refined our race-focused comfort tech to be lighter and have nearly double the vertical compliance so you can ride stronger longer.
For the detail-oriented
Tap any group to see every part.
Measurements in cm unless noted.
| Size | XS | S | M | ML | L | XL |
|---|---|---|---|---|---|---|
| Rider height | 4'8"–5'2" | 5'2"–5'4" | 5'4"–5'8" | 5'8"–5'10" | 5'10"–6'2" | 6'2"–6'6" |
| Seat tube (A on the drawing) | 40.4 | 44.0 | 47.6 | 51.2 | 54.8 | 60.9 |
| Seat tube angle (B on the drawing) | 73.8° | 73.8° | 73.6° | 73.4° | 73.4° | 73.4° |
| Head tube length (C on the drawing) | 10.0 | 12.1 | 13.6 | 15.0 | 17.2 | 20.1 |
| Head tube angle (D on the drawing) | 71.6° | 72.2° | 72.9° | 73.5° | 73.8° | 73.9° |
| Eff. top tube (E on the drawing) | 51.7 | 53.2 | 54.5 | 55.7 | 56.8 | 58.4 |
| BB drop (G on the drawing) | 7.2 | 7.2 | 7.0 | 7.0 | 6.8 | 6.8 |
| Chainstay length (H on the drawing) | 41.0 | 41.0 | 41.0 | 41.0 | 41.1 | 41.2 |
| Offset (I on the drawing) | 5.0 | 4.5 | 4.5 | 4.0 | 4.0 | 4.0 |
| Trail (J on the drawing) | 6.1 | 6.2 | 5.8 | 5.9 | 5.7 | 5.7 |
| Wheelbase (K on the drawing) | 97.1 | 97.6 | 98.1 | 98.0 | 99.0 | 100.7 |
| Standover (L on the drawing) | 70.4 | 73.4 | 76.2 | 79.0 | 82.0 | 86.3 |
| Reach (M on the drawing) | 37.0 | 37.8 | 38.4 | 38.9 | 39.4 | 40.2 |
| Stack (N on the drawing) | 50.7 | 53.0 | 54.6 | 56.2 | 58.2 | 61.0 |
| Wheel size | 700c | 700c | 700c | 700c | 700c | 700c |
| Front Center | 57.2 | 57.7 | 58.2 | 58.1 | 58.9 | 60.4 |
| Saddle Rail Height Min Short | 54.9 | 58.5 | 62.1 | 65.7 | 69.3 | 75.4 |
| Saddle Rail Height Max Short | 61.2 | 64.8 | 68.4 | 72.0 | 75.6 | 81.7 |
| Saddle Rail Height Min Tall | 59.2 | 62.8 | 66.4 | 70.0 | 73.6 | 79.7 |
| Saddle Rail Height Max Tall | 65.4 | 69.0 | 72.6 | 76.2 | 79.8 | 85.9 |
The Atlanta Cycling difference
Specs matter. But so does how a bike feels when you ride it. Our team is here to help you choose the right size, understand the details, and get comfortable before your first ride.
When you buy from Atlanta Cycling, you're not just getting a box with a bicycle in it. You're getting a 30-day money-back guarantee, a complimentary baseline fit, lifetime basic adjustments, and real people who want you to love every mile.
“Unlike anything else”
Faster than previous Madone...how can a bike this fast be this comfortable?
velo.outsideonline.com · Read the review
“Slices through the wind and sails up climbs”
This feathery wind-cheater is just the bike I need for all my road rides.
cyclingmagazine.ca · Read the review
Four neighborhood stores. One shared passion.
Ansley. Alpharetta. Roswell. Vinings. Stop by, take a test ride, ask questions, and meet the people who will be here long after your first ride.
