The ride, not just the specs
Gravity is the fun part.
Session is a downhill bike made for bike parks, lift-served days, and the fastest way to the bottom.
It's stable, strong, and built to take the hits, so you can focus on the line.
Trek Session C 29 Frameset
M / Viper Red
$1,499.93
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Trek / Downhill Mountain Bikes
Trek Session C 29 Frameset
Built for the downhill.
While the rest of the industry was mucking about with 29˝ DH bike prototypes for professional mountain bike racers, we brought the party to the people with our first production 29er downhill bike. Session C 29 frameset pairs fast-rolling 29er performance and our proven downhill frame technology. It's long, stable, and aggressive, with a geometry dialed for your fastest runs ever.
$1,499.93
What size am I?
Based on the bike's size chart. Your complimentary baseline fit in store dials in the rest.
Not currently available from Trek
Questions are welcome. No pressure, no bike jargon required.
- 30-day money-back guarantee Ride it. If it isn't right, bring it back.
- Free adjustments for life On every bike you buy from us.
- Complimentary baseline fit We set the bike up for your body.
What makes it special
Thoughtful details. Big possibilities.
01Active Braking Pivot
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.
02Looks like a World Championship
Trek Factory Racing's Reece Wilson charged his way into the rainbow jersey aboard Session this year, taking all the right risks on a slick course and carving his name in Downhill's history books with a truly gutsy run.
For the detail-oriented
Let's talk bikes.
- Frame Carbon
- Suspension Full suspension, 190mm
- Wheels 29"
- Weight 7.1 lb
Tap any group to see every part.
Frameset3
- Frame
- OCLV Mountain Carbon main frame & stays, tapered head tube, integrated frame protection, Control Freak internal routing, magnesium rocker link, Mino Link, ISCG mount, ABP, 12x157mm thru axle, 190mm travel
- Rear shock
- RockShox Super Deluxe Ultimate DH, RC damper, 225mm x 70mm
- Headset
- FSA Orbit, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom (includes geometry adjust angled cups)
Wheels & tires1
- Rear axle
- Bontrager Switch thru axle
Weight & limits5
- Weight
- M - 3.24 kg / 7.14 lbs
- Weight limit
- This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
- Max tire size
- 29x2.50"
- Max chainring
- 36T
- Max fork travel
- 200mm
Good to know3
- Suspension Calculator This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.
- Mino Link adjustable geometry Fine tune head tube angle by 1/2° and BB height by up to 10mm with the simple turn of a nut. Just flip the link to choose between slack or slacker geometry, without negatively affecting suspension performance. A Trek exclusive.
- Carbon Armor Sometimes you need a little extra protection, so we developed our light, tough external Carbon Armor polymer shield. It provides reassurance when you know your down tube is bound to take some abuse.
Geometry & sizing.
Measurements in cm unless noted.
| Size | M | M | L | L | XL | XL |
|---|---|---|---|---|---|---|
| Rider height | 5'5"–5'10" | 5'5"–5'10" | 5'10"–6'2" | 5'10"–6'2" | 6'2"–6'5" | 6'2"–6'5" |
| Seat tube (A on the drawing) | 42.5 | 42.5 | 45.6 | 45.6 | 45.6 | 45.6 |
| Seat tube angle (B on the drawing) | 56.6° | 56.6° | 56.6° | 56.6° | 56.6° | 56.6° |
| Head tube length (C on the drawing) | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 |
| Head tube angle (D on the drawing) | 62.1° | 62.1° | 62.1° | 62.1° | 62.1° | 62.1° |
| Eff. top tube (E on the drawing) | 60.3 | 60.3 | 62.4 | 62.4 | 64.9 | 64.9 |
| BB height (F on the drawing) | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 |
| BB drop (G on the drawing) | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 |
| Chainstay length (H on the drawing) | 45.3 | 45.3 | 45.3 | 45.3 | 45.3 | 45.3 |
| Offset (I on the drawing) | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 |
| Trail (J on the drawing) | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 |
| Wheelbase (K on the drawing) | 124.8 | 124.8 | 126.9 | 126.9 | 129.4 | 129.4 |
| Standover (L on the drawing) | 73.6 | 73.6 | 74.3 | 74.3 | 74.5 | 74.5 |
| Reach (M on the drawing) | 41.5 | 41.5 | 43.6 | 43.6 | 46.1 | 46.1 |
| Stack (N on the drawing) | 61.9 | 61.9 | 61.9 | 61.9 | 61.9 | 61.9 |
| Position | Low | Low | Low | Low | Low | Low |
| Wheel size | 29" | 29" | 29" | 29" | 29" | 29" |
| Eff. seat tube angle | 73.1° | 73.1° | 73.1° | 73.1° | 73.1° | 73.1° |
The Atlanta Cycling difference
The right bike is only the beginning.
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.
What reviewers are saying.
-
“A damn fast bike”
Session allows you to hit sections at ridiculous speeds and commitment levels. It's been nothing but grin-inducing to get to know the Session so far.
pinkbike.com · Read the review
-
“For riders who charge full speed”
A fast, versatile, confidence inspiring downhill bike that will let you push harder and ride faster than you thought you could.
theloamwolf.com · Read the review
Four neighborhood stores. One shared passion.
Let's find your next adventure.
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.