2021 trek Session 9.9 29
Manufacturer Description
Session 9.9 is the pinnacle of downhill mountain bike performance. This is the same DH bike the pros ride, and it's built for one reason: going as fast as freakin' possible downhill. It pairs a SRAM X01 DH drivetrain and Code RSC brakes with our premium OCLV Mountain Carbon frame and top-shelf RockShox suspension.
Build Kit
| Frameset | |
|---|---|
| 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 |
| Fork | RockShox Boxxer Ultimate, DebonAir spring, Charger 2 RC2 damper, straight steerer, 46 mm offset, Boost, 110x20 mm Maxle Stealth, 190 mm travel |
| Rear Shock | RockShox Super Deluxe Ultimate DH, 225x70mm |
| Cockpit | |
| Grips | Bontrager XR Trail Elite, alloy lock-on |
| Handlebars | Bontrager Line Pro, OCLV Carbon, 35 mm, 15 mm rise, 820 mm width |
| Saddle | Bontrager Arvada, austenite rails, 138 mm width |
| Seatpost | Bontrager Rhythm Elite, 31.6 mm, 0 mm offset, 330 mm length |
| Stem | Bontrager Line Pro, 35 mm, Direct Mount, 50 mm length |
| Brakes | |
| Levers | - |
| Front Brakes | Size: S, M, L, XL, SRAM Code RSC 4-piston hydraulic disc |
| Rear Brakes | Size: S, M, L, XL, SRAM Code RSC 4-piston hydraulic disc |
| Drivetrain | |
| Bottom Bracket | SRAM DUB, 83mm, BSA threaded |
| Cassette | SRAM PG-720, 11-25, 7 speed |
| Chain | SRAM PC-1110, 11 speed |
| Chain Rings | - |
| Crankset | SRAM X01 DH, DUB 83, 36T, 56.5mm chainline, 165mm length |
| Front Derailleur | - |
| Rear Derailleur | SRAM X01 DH |
| Pedals | - |
| Shifters | - |
| Wheels | |
| Front Hub | - |
| Rear Hub | - |
| Spokes | - |
| Front Tire | - |
| Rear Tire | - |
| Tubes | - |
| Front Wheel | Bontrager Line DH 30, Tubeless Ready, 6-bolt, 110x20 mm Boost thru axle |
| Rear Wheel | Bontrager Line DH 30, Tubeless Ready, 6-bolt, Shimano 7 speed freehub, 157x12 mm thru axle |
Geometry
| S | M | L | XL | S | M | L | XL | |
|---|---|---|---|---|---|---|---|---|
| BB Drop ? | 1.6 | 1.6 | 1.6 | 1.6 | 2.3 | 2.3 | 2.3 | 2.3 |
| BB Height ? | 35.6 | 35.6 | 35.6 | 35.6 | 35 | 35 | 35 | 35 |
| Chainstay Length ? | 45.2 | 45.2 | 45.2 | 45.2 | 45.3 | 45.3 | 45.3 | 45.3 |
| Crank Length | - | - | - | - | - | - | - | - |
| Fork Length | - | - | - | - | - | - | - | - |
| Fork Rake Offset ? | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 |
| Front Center | - | - | - | - | - | - | - | - |
| Handlebar Width | - | - | - | - | - | - | - | - |
| Headtube Angle ? | 62.6° | 62.6° | 62.6° | 62.6° | 62.1° | 62.1° | 62.1° | 62.1° |
| Headtube Length ? | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 |
| Reach ? | 40 | 42 | 44 | 46.5 | 39.6 | 41.5 | 43.6 | 46.1 |
| Saddle Width | - | - | - | - | - | - | - | - |
| Seatpost Length | - | - | - | - | - | - | - | - |
| Seat Tube Angle ? | 57.0° | 57.0° | 57.0° | 57.0° | 56.6° | 56.6° | 56.6° | 56.6° |
| Seat Tube Length ? | 42.5 | 42.5 | 45.6 | 45.6 | 42.5 | 42.5 | 45.6 | 45.6 |
| Stack ? | 61.6 | 61.6 | 61.6 | 61.6 | 61.9 | 61.9 | 61.9 | 61.9 |
| Standover Height | 74.1 | 74.2 | 74.7 | 74.9 | 73.5 | 73.6 | 74.3 | 74.5 |
| Stem Length | - | - | - | - | - | - | - | - |
| Top Tube Length ? | 56.8 | 58.7 | 60.8 | 63.3 | 58.3 | 60.2 | 62.3 | 64.8 |
| Trail | 12.8 | 12.8 | 12.8 | 12.8 | 13.1 | 13.1 | 13.1 | 13.1 |
| Wheelbase | 122.8 | 124.7 | 126.8 | 129.3 | 122.6 | 124.5 | 126.6 | 129.1 |
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