Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2023 Trek Slash 9.9 XX1 Flight Attendant
Value Guide market data · 2023 Trek Slash 9.9 XX1 Flight Attendant
12-month trend
13%
Direction and magnitude, not judgment
vs. category average
3%
Drops faster than category avg
Price over time - 2023 Trek Slash 9.9 XX1 Flight Attendant
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Slash model years
2026$7,254 - $8,424▼ 27% vs. 2023
2025$10,695 - $12,420▲ 7% vs. 2023
2024$8,928 - $10,368▼ 11% vs. 20232023$9,998 - $11,610Currently viewing
2022$11,672 - $13,554▲ 17% vs. 2023
2021$8,882 - $10,314▼ 11% vs. 2023
2020$7,905 - $9,180▼ 21% vs. 2023
2019$6,975 - $8,100▼ 30% vs. 2023
2018$5,115 - $5,940▼ 49% vs. 2023
2017$7,440 - $8,640▼ 26% vs. 2023
2016$7,440 - $8,640▼ 26% vs. 2023
2015$7,812 - $9,072▼ 22% vs. 2023
2014$5,366 - $6,232▼ 46% vs. 2023
2013$5,468 - $6,350▼ 45% vs. 2023
2012$5,468 - $6,350▼ 45% vs. 20232023 Slash 9.9 XX1 Flight Attendant lineup
Overview
About this bike
2023 Trek Slash 9.9 XX1 Flight Attendant value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- RockShox ZEB Ultimate Flight Attendant, DebonAir spring, Charger 2.1 RCT3 AXS damper, 1.5'' tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 170mm travel
- Frame
- OCLV Mountain Carbon main frame & stays, internal storage, tapered head tube, Knock Block 2.0, Control Freak internal routing, Carbon Armor, shuttle guard, threaded BB, ISCG 05, 34.9mm seat tube, magnesium rocker link, Mino Link, ABP, Boost148, 160mm travel
- Rear Shock
- RockShox Super Deluxe Ultimate Flight Attendant, 230mm x 62.5mm
Drivetrain
- Groupset
- SRAM Eagle
- Bottom Bracket
- SRAM DUB MTB Wide, 73mm, BSA threaded
- Cassette
- SRAM Eagle XG-1299, 10-52, 12 speed
- Chain
- SRAM XX1 Eagle, 12 speed
- Crankset
- SRAM XX1 Eagle, Flight Attendant, DUB MTB Wide, 30T alloy ring, 55mm chainline, 170mm length
- Rear Derailleur
- SRAM XX1 Eagle AXS
- Shifters
- SRAM Eagle AXS, wireless, 12 speed // SRAM Eagle AXS, wireless, 12 speed
Brakes
- Rotors
- SRAM HS2, 6-bolt, 180mm // SRAM 6-bolt, 200mm
Cockpit
- Handlebar
- Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 35mm stem length
- Headset
- Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
- Saddle
- Bontrager Arvada, austenite rails, 138mm width
- Seatpost
- RockShox Reverb AXS, 100mm travel, wireless, 34.9mm, 340mm length
- Grips
- Bontrager XR Trail Pro, alloy lock-on
Wheels & Tires
- Front Tire
- Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50'' // Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''
- Rear Tire
- Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50'' // Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''
- Wheel Size
- 29-inch
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork lowers and rear shock service intervals; ask for the most recent service receipts.
Inspection
Frame pivots & bearings
Cycle the suspension off the bike to feel for play, grit, or noise in pivot bearings.