MountainE-bikeVerified spec

2021 Trek Rail 9.9 X01 AXS

Launched at $12,500

Own a 2021 Trek Rail 9.9 X01 AXS?

Track its value in your garage, or list it for sale locally in a few taps.

What a used one is worth

New

$6,985

$4,511 to $8,416

Like new

$6,636

$4,285 to $7,995

Excellent

$6,286

$4,060 to $7,574

Good

$5,239

$3,383 to $6,312

Fair

$3,842

$2,481 to $4,629

For parts

$2,095

$1,353 to $2,525

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Fork: RockShox ZEB Ultimate, DebonAir spring, Charger 2.1 RC2 damper, e-MTB optimized crown, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel
Stem: Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree
Tires: Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewall, aramid bead, 60 tpi, 29x2.60"
Brakes: SRAM Code RSC hydraulic disc
Saddle: Bontrager Arvada, austenite rails, 138mm width
Wheels: NEW Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110 front, Boost148 rear
Cassette: SRAM XG-1295 Eagle, 10-52, 12 speed
Crankset: E*thirteen E*spec Race carbon, 34T
Seatpost: RockShox Reverb AXS, wireless, 31.6mm
Shifters: SRAM Eagle AXS, wireless, 12-speed
Handlebar: Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise
Weight kg: 22.47
Rear shock: NEW RockShox Super Deluxe Ultimate RT3, DebonAir spring, Thru Shaft 3-position damper, 230x57.5mm
Travel rear mm: 150
Rear derailleur: SRAM X01 Eagle AXS
Travel front mm: 160

Motor: Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist
Assist mph: 20
Battery wh: 625

15.5: Reach mm: 425; Stack mm: 623; Chainstay mm: 447; Wheelbase mm: 1195; Head angle deg: 64.9
17.5: Reach mm: 450; Stack mm: 622; Chainstay mm: 447; Wheelbase mm: 1220; Head angle deg: 64.9
19.5: Reach mm: 470; Stack mm: 627; Chainstay mm: 447; Wheelbase mm: 1243; Head angle deg: 64.9
21.5: Reach mm: 499; Stack mm: 636; Chainstay mm: 447; Wheelbase mm: 1277; Head angle deg: 64.9

Price as shown on Trek's US site, 2020-09 capture.

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