Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2024 Trek Rail 9.9 XO AXS US
Value Guide market data · 2024 Trek Rail 9.9 XO AXS US
12-month trend
17%
Direction and magnitude, not judgment
vs. category average
2%
Drops faster than category avg
Price over time - 2024 Trek Rail 9.9 XO AXS US
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Rail model years
2024 Rail 9.9 XO AXS US lineup
Overview
About this bike
2024 Trek Rail 9.9 XO AXS US value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Cable Management
- Trek Cable Management Rail 29 Carbon 2022 Bottom Bracket Cable Grommet, a la carte, 2 Needed Per Frame for Rear Derailleur and Brake Housing, brake housing side also routes speed sensor cable
- Fork
- Rock Shox Front Suspension Fork, ZEB Ultimate, 29, 160mm travel, AirWiz, DebonAir Spring, Charger 3 RC2 damper, 1.8'' oversized tapered aluminum steer for eMTB with oversized crown, 44mm offset, Boost 110, Maxle Stealth, 200mm minimum rotor, SRAM Part Number 00.4020.845.000
- Frame Guard
- Trek Armor Rail 29 2020 Downtube Armor Black
- Shock
- Rock Shox Rear Shock, Super Deluxe Thru Shaft, AirWiz, 230mm x 57.5mm, 54mm x 10mm Trunnion Upper Mounts, 40mm x 10mm Trunnion Lower Mounts, SRAM Part Number 00.4118.344.001
Drivetrain
- Groupset
- SRAM X01
- Cassette
- SRAM Cassette XO XS1295 Transmission 10-52, SRAM Part number 00.2418.121.000
- Chain
- SRAM chain X0 Eagle, T-Type, 120 link, 00.2518.055.006
- Chain Guard
- e*thirteen Chain Guide, for Bosch Gen4, with 5mm spacers for 52mm chainline, bolts directly to Bosch motor, e*thirteen part number CG3UPM-100
- Chain Ring
- SRAM Chainring XX for Bosch eMTB direct mount, 34 tooth, Transmission, SRAM part number 00.6218.036.001
- Crank
- SRAM X0 Eagle eMTB crankarms, T-Type,160mm length, ISIS mount, arms only, SRAM part number 00.6118.648.002
- Rear Derailleur
- SRAM Rear Derailleur XO Eagle AXS Transmission, SRAM part number 00.7518.148.000
- Shifters
- SRAM AXS Pod Ultimate Right Bridge MMX, SRAM Part number 00.3018.308.001
Brakes
- Brake
- SRAM Code Silver Stealth 4-piston hydraulic disc brake set, front 900mm hose length, SRAM manufacturer's part number 92.5020.749.100
- Brake Rotor
- SRAM HS2 Brake Rotor, 200mm, 6-Bolt, Stainless Steel, SRAM Part Number 00.5018.174.002
Cockpit
- Grips
- Bontrager Grips XR Trail Elite, 130mm, Black
- Headset Part
- Bontrager Headset Top Cap for Knock Block Black
- Integrated Bar Stem
- Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 45mm length
- Saddle
- Bontrager Saddle Arvada Austenite Rails Medium Black
- Seatpost
- Rock Shox Dropper Seatpost Reverb AXS 34.9mm Diameter 100mm Travel, SRAM Part Number 00.6818.039.008
- Stem Part
- Bontrager Stem Part for RSL Integrated handlebar/stem shim for Knock Block headsets
Wheels & Tires
- Front Wheel
- Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
- Rear Skewer
- Bontrager ''Switch'' 12mm Thru Axle, Removable Lever, M12 Thread, 184.5mm Length, Black
- Rear Wheel
- Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle
- Tire
- Bontrager SE5 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.50''
- Tire Part
- Bontrager TLR Tire Sealant 6 oz. Bottle
Pedals
- Pedal
- VP Pedal VPE-536 Black
E-System
- Battery
- Bosch, Smart System (BES3), PowerTube 625 Battery, BOSCH P/N: EB12.100.012
- Battery Part
- Bosch Charge Socket O-Ring, 24x2mm, Rubber, Black. Bosch P/N: EB12.120.019
- Charger
- Bosch, Smart System (BES3), 4A Charger (110V), BOSCH P/N: EB12.110.000
- Controller
- Bosch, Smart System (BES3), Control Intube Module BRC3100, BOSCH P/N: EB13.100.000
- Motor
- Bosch Drive Unit Performance Line CX/Cargo, Smart System (BES3). BOSCH P/N: EB11.100.001
- Motor Part
- Bosch Lock Ring for Chainring, Performance Line, Gen 4, BOSCH P/N: 1270.014.085
- Power Cable
- Bosch, Charger Power Cable, US, BOSCH P/N: 1270.020.343
Accessories
- Armor
- Trek Motor Armor Rail 29 Carbon Gen 4 only, black, aluminum, black
- Bar End Plug
- Bontrager Bar End Plug
- Decal
- Stick-On Trek Shield Headtube Badge, Black
- Ebike Part
- Trek-Diamant Universal Charge Port for Bosch BES3
- Electronics
- Bosch integrated speed sensor, with 750mm cable. Compatible with Bosch BES3 systems
- Fastener
- Bosch, Drive Unit Screw, M8 x 16mm, BOSCH P/N: 1270.016.470
- Nut
- Bontrager Stem D-nut for XXX stems and RSL integrated bar/stems, Only available in a kit with matching M5 fasteners
- Seat Collar
- Bontrager Seat Collar 39.7mm For MTBs with 34.9mm Seatposts
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
Battery health
Request battery cycle count and any diagnostic report; older packs lose range and capacity.
Inspection
Motor warranty
Verify motor warranty status and any firmware updates from the manufacturer dealer.