Trek Session 9.9 29 2021
2021 Mountain
Estimate price |
7,999$
Weight | 15.27 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Carbon -
Wheels 29" -
Travel Front 190mm -
Travel Rear 190mm -
Fork RockShox BoXXer Ultimate
-
Groupset X01 -
Suspension Full -
Drivetrain 1 × 7 -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
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
Suspension Fork
RockShox Boxxer Ultimate, DebonAir spring, Charger 2 RC2 damper, straight steerer, 46mm offset, Boost, 110x20mm Maxle Stealth, 190mm travel
Rear Shock
RockShox Super Deluxe Ultimate DH, RC damper, 225mm x 70mm
Drivetrain
Rear Derailleur
SRAM X01 DH, medium cage
Shift Levers
SRAM X01 DH, 7 speed
Cassette
SRAM PG-720, 11-25, 7 speed
Crank
SRAM X01 DH, DUB 83, 36T, 56.5mm chainline, 165mm length
Bottom Bracket
SRAM DUB, 83mm, BSA threaded
Chain
SRAM PC-1110, 11 speed
Wheels
Rims
Bontrager Line DH 30, Tubeless Ready, 6-bolt, 110x20mm Boost thru axle
Tires
Bontrager G5 Team Issue, wire bead, 2-ply 60tpi, 29x2.50''
Brakes
Brakes
SRAM Code RSC 4-piston hydraulic disc
Disk Rotors
Size: S, M, L, XL, SRAM CenterLine, 6-bolt, round edge, 180mm; Size: S, M, L, XL, SRAM CenterLine, 6-bolt, round edge, 200mm
Cockpit
Stem
Bontrager Line Pro, 35mm, Direct Mount, 50mm length
Handlebar
Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 820mm width
Grips
Bontrager XR Trail Elite, alloy lock-on
Seat
Saddle
Bontrager Arvada, austenite rails, 138mm width
Seatpost
Bontrager Rhythm Elite, 31.6mm, 0mm offset, 330mm length
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM High | SM Low | MD High | MD Low | LG High | LG Low | XL High | XL Low |
|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.55 mm | 1.58 mm | 1.48 mm | 1.5 mm | 1.41 mm | 1.43 mm | 1.33 mm | 1.35 mm |
| Bottom Bracket Height | 356 mm | 350 mm | 356 mm | 350 mm | 356 mm | 350 mm | 356 mm | 350 mm |
| Front Center | 776 mm | 774 mm | 795 mm | 793 mm | 816 mm | 814 mm | 841 mm | 839 mm |
| Rake | 58 mm | 55 mm | 57 mm | 55 mm | 58 mm | 55 mm | 58 mm | 55 mm |
| Trail | 128 mm | 131 mm | 128 mm | 131 mm | 128 mm | 131 mm | 128 mm | 131 mm |
| Stack | 607 mm | 610 mm | 607 mm | 610 mm | 607 mm | 610 mm | 607 mm | 610 mm |
| Reach | 391 mm | 387 mm | 411 mm | 406 mm | 431 mm | 427 mm | 456 mm | 452 mm |
| Top Tube Length | 559 mm | 574 mm | 578 mm | 593 mm | 599 mm | 614 mm | 624 mm | 639 mm |
| Seat Tube Angle | 57 ° | 56.6 ° | 57 ° | 56.6 ° | 57 ° | 56.6 ° | 57 ° | 56.6 ° |
| Seat Tube Length | 425 mm | 425 mm | 425 mm | 425 mm | 456 mm | 456 mm | 456 mm | 456 mm |
| Head Tube Angle | 62.6 ° | 62.1 ° | 62.6 ° | 62.1 ° | 62.6 ° | 62.1 ° | 62.6 ° | 62.1 ° |
| Head Tube Length | 115 mm | 115 mm | 115 mm | 115 mm | 115 mm | 115 mm | 115 mm | 115 mm |
| Chainstay Length | 443 mm | 444 mm | 443 mm | 444 mm | 443 mm | 444 mm | 443 mm | 444 mm |
| Wheelbase | 1219 mm | 1217 mm | 1238 mm | 1236 mm | 1259 mm | 1257 mm | 1284 mm | 1282 mm |
| Bottom Bracket Drop | 16 mm | 23 mm | 16 mm | 23 mm | 16 mm | 23 mm | 16 mm | 23 mm |
| Standover Height | 732 mm | 726 mm | 733 mm | 727 mm | 738 mm | 734 mm | 740 mm | 736 mm |
| Wheels | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" |
Model Overview
Session 9.9 29 completes the Trek Session model. 88 bikes variations carry this model name so far. Take a sneak peek at all Trek Session bikes models from 2021, by clicking here.
Model range prices
Trek Session 8 27.5 2021 is the cheapest bike model and costs 4799$. Trek Session 9.9 29 2021 is the most expensive one and costs 7999$.
Safety
Make sure you wear a helmet on every ride, and that your bike performs well. In short, this means checking the tires, brakes, and chain to make sure everything is in good working order.
Average price for Downhill bikes
If you want an acceptable Downhill bike you should know that the average price is 3391$. However, even if your budget is less than the average, you might still be able to get a top-quality Downhill bike. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
At the moment of the release date, Trek Session 9.9 29 price was 7999$. Comparing this to the average Downhill bike price, we see that the price is 135.89% more expensive.
Downhill bikes average weight
If we make a quick analysis of the average weight of a Downhill bike, we get 15.89 kg (35.03 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.
Session 9.9 29 weighs 15.27 kg (33.66 lbs) and is slightly lighter than the average. In conclusion, the average Downhill bike weighs 4.06% more than Session 9.9 29.
Internal Cable Routing
Moreover, this bike comes with internal cable routing allowing you to keep the cables in a good condition. It also makes it look more professional.
Overview of components
Fork
Trek Session 9.9 29 2021 bike is equipped with the RockShox BoXXer Ultimate fork, and has 190mm travel. Bike forks are great for shock absorption and provide you with a smooth ride. In short, you should always ensure you have a good fork when purchasing a bike.
Rear Shock
As for the rear shock, this bike has the RockShox Super Deluxe Ultimate DH model, with a travel of 190mm. Bike rear shocks increase the riding comfort, and also give you more control over technical trails. To sum up, get a full-suspension bike if you want the smoothest rides.
Wheels size
The Session 9.9 29 2021 bike is equipped with 29″ aluminum wheels when leaving the factory. Having 29″ wheels means that you need less fork travel, leading to a reduction of the pedal bob effect. However, the 29″ wheels will add a little more weight to the bike itself.
Brakes
When you want to stop the bike in time, the brakes are vital. The Session 9.9 29 has Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, your safety is in good hands.