Trek

2025 Trek Rail+ 9.9 XO AXS

2025 Trek Rail+ 9.9 XO AXS

Value Guide market data · 2025 Trek Rail+ 9.9 XO AXS

12-month trend

22%

Direction and magnitude, not judgment

vs. category average

7%

Drops faster than category avg

Price over time - 2025 Trek Rail+ 9.9 XO AXS

$12.6k$8.4k$4.2kMSRPYr 1Yr 2Yr 3Yr 4Yr 5

Values based on actual sales data. Enter your bike's specifics to get a precise valuation.

All Rail model years

2025 Rail+ 9.9 XO AXS lineup

Overview

About this bike

2025 Trek Rail+ 9.9 XO AXS value depends on condition, original build, frame material, service history, and current buyer demand.

Specifications

Frameset

Fork
Rockshox ZEB Ultimate, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel
Frame
OCLV Mountain Carbon, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34.9mm seat tube, ABP, UDH Boost148, 12 mm thru axle, 160 mm travel
Rear Shock
RockShox Super Deluxe Ultimate RC2T, 205x65mm

Drivetrain

Groupset
SRAM X01
Cassette
SRAM Eagle XS-1295, T-Type, 10-52, 12 speed
Chain
SRAM X0 Eagle, T-Type, 12 speed
Crankset
SRAM X0 Eagle, 160mm length
Rear Derailleur
SRAM X0 Eagle AXS, T-Type

Brakes

Brakes
SRAM Code Silver 4-piston hydraulic disc
Rotors
SRAM 6-bolt, 200mm , SRAM HS2, 6-bolt, 220mm

Cockpit

Handlebar
Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
Saddle
Verse Short Comp, steel rails, 145mm width
Seatpost
RockShox Reverb AXS, 100mm travel, wireless, 34.9mm, 340mm length , RockShox Reverb AXS, 170mm travel, wireless, 34.9mm, 480mm length
Stem
Bontrager Line Pro, 35mm, Blendr compatible, 0 degree, 45mm length
Grips
Bontrager XR Trail Elite, nylon lock-on

Wheels & Tires

Front Tire
Small Front: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 27.5x2.50'' , Medium - X-Large Front: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 29x2.50'' , Rear: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 27.5x2.50''
Rear Tire
Small Front: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 27.5x2.50'' , Medium - X-Large Front: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 29x2.50'' , Rear: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 27.5x2.50''
Wheel Set
Small Front: Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5'' , Size Medium - X-Large Front: Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'' , Rear: Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle, 27.5''
Wheel Size
29-inch front / 27.5-inch rear / 27.5-Inch

Pedals

Pedals
VP-536 nylon platform

E-System

Battery
Bosch PowerTube 800Wh, smart system
Charger
Bosch standard 4A, 230V, smart system
Controller/Display
Bosch System Controller BRC3100, smart system
Motor
Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC)

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

Frame condition

Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.

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.

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