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Trek Session 9 X01

Trek Session 9 X01
  • Color: Team
Wheel Size:
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Session 9 is a rowdy and ready downhill mountain bike with a robust alloy frame and high-pivot suspension design that keeps you nimble, planted, and blazing fast on even the most punishing runs. It’s built with our best DH suspension package, a high-end drivetrain, and powerful Code RSC brakes.

- New suspension layout with a high pivot and idler pulley increases traction, carries more speed, and reduces pedal kickback for more stability
- Virtually zero pedal kickback means you’ll stay confidently planted and in control during descents—especially when landing jumps or drops
- The high pivot design delivers a more efficient rearward axle path so you’ll carry more speed and your wheel won’t get hung up on obstacles
- Adjust your suspension progression by flipping the lower shock mount chip—20% for plush park rides, 25% for racing efficiency
- Our new DH sizing system is based on reach, not rider height, which is the most important factor in a great downhill bike fit

Geometry Chart:
Frame size letterR1R1R2R2R3R3
Geometry positionHigh LowHighLowHighLow
Wheel size29" 29"29"29"29"29"
A — Seat tube42.5 42.542.542.542.542.5
B — Seat tube angle61.6° 61.0°61.6°61.0°61.6°61.0°
Effective seat tube angle77.1° 76.5°77.1°76.5°77.1°76.5°
C — Head tube length11.7 11.711.711.711.711.7
D — Head angle63.6° 63.0°63.6°63.0°63.6°63.0°
E — Effective top tube58.6 58.761.761.865.265.3
F — Bottom bracket height35.9 3535.93535.935
G — Bottom bracket drop1.2
H — Chainstay length43.5 43.944.144.544.845.2
I — Offset4.6
J — Trail13.1 13.613.113.613.213.6
K — Wheelbase124.3 124.6127.4127.7130.9131.2
L — Standover75.5 74.775.975.175.774.9
M — Frame reach44.7 4447.246.549.949.3
N — Frame stack63.4 63.963.463.963.463.9
SizeRider HeightInseam
R1 161 - 175 cm
5'3" - 5'9"
76 - 82 cm
30" - 32"
R2 174 - 188 cm
5'9" - 6'2"
82 - 88 cm
32" - 35"
R3 186 - 196 cm
6'1" - 6'5"
87 - 92 cm
34" - 36"


Pedals Wellgo MG-1, magnesium body, Cro-Mo axle, replaceable pins
Fork RockShox Boxxer Ultimate, DebonAir spring, Charger 2 RC2 damper, straight steerer, 46mm offset, Boost, 110x20mm Maxle Stealth, 200mm travel
Rims Bontrager Line DH 30, Tubeless Ready
Stem Bontrager Line Pro, 35mm, Direct Mount, 50mm length
Chain SRAM PC-1110, 11 speed
Frame Alpha Platinum Aluminum, high main pivot, idler pulley, integrated frame protection, internal or external routing, magnesium rocker link, Mino Link, ISCG 05 2-bolt mount, Active Braking Pivot, 157x12mm thru axle, 200mm travel
Tires Bontrager G5 Team Issue, wire bead, 2-ply 60tpi, 29x2.50''
Brakes SRAM Code RSC 4-piston hydraulic disc // SRAM Code RSC 4-piston hydraulic disc
Rotors SRAM 6-bolt, 200mm // SRAM HS2, 6-bolt, 220mm
Saddle Bontrager Arvada, austenite rails, 138mm width
Headset FSA Orbit, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom (includes geometry adjust angled cups)
Crankset SRAM X01 DH, DUB 83, 34T alloy ring, 165mm length
Seatpost Bontrager Rhythm Elite, 31.6mm, 0mm offset, 330mm length
Shifters SRAM X01 DH, 7 speed
Handlebars Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 820mm width
Rear Shock RockShox Super Deluxe Ultimate DH RC2, 250mm x 72.5mm
Tape/Grips Bontrager XR Trail Elite, nylon lock-on
Bottom Bracket SRAM DUB, 83mm, BSA threaded
Rear Derailleur SRAM X01 DH, medium cage
Cassette/Freewheel SRAM PG-720, 11-25, 7 speed

* Subject to change without notice.

Part Numbers

Option UPC MPN
Team / R3 / 29-inch 601842864692 5279094
Team / R2 / 29-inch 601842864708 5279093
Team / R1 / 29-inch 601842864715 5279092