Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2021 Trek X-Caliber 8
Value Guide market data · 2021 Trek X-Caliber 8
12-month trend
13%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 Trek X-Caliber 8
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All X-Caliber model years
2023$1,069 - $1,241▼ 14% vs. 2021
2022$1,488 - $1,728▲ 20% vs. 20212021$1,237 - $1,436Currently viewing
2020$1,535 - $1,782▲ 24% vs. 2021
2019$1,544 - $1,793▲ 25% vs. 2021
2018$1,562 - $1,814▲ 26% vs. 2021
2017$1,190 - $1,382▼ 4% vs. 2021
2016$893 - $1,037▼ 28% vs. 2021
2015$1,246 - $1,447▲ 1% vs. 2021
2014$1,228 - $1,426▼ 1% vs. 2021
2013$1,581 - $1,836▲ 28% vs. 2021
2012$1,488 - $1,728▲ 20% vs. 2021
2011$1,507 - $1,750▲ 22% vs. 20212021 X-Caliber 8 lineup
Overview
About this bike
2021 Trek X-Caliber 8 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42mm offset, Boost110
- Frame
- Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141
Drivetrain
- Groupset
- 2021 Trek X-Caliber 8
- Crankset
- SRAM SX Eagle, GXP, 30T steel ring, Boost
- Bottom Bracket
- Truvativ Powerspline, 73mm, threaded cartridge, 118mm spindle
- Chain
- SRAM SX Eagle, 12 speed
- Rear Derailleur
- SRAM SX Eagle
- Cassette/Rear Cogs
- SRAM PG-1210 Eagle, 11-50, 12 speed
- Shifters
- SRAM SX Eagle, 12 speed
Brakes
- Brakes
- Shimano MT200 hydraulic disc w/Shimano RT26, 6-bolt rotors
Cockpit
- Saddle
- Bontrager Arvada, steel rails, 138mm width
- Headset
- Semi-integrated, loose ball bearing, 1-1/8'' top, 1.5'' bottom
- Stem
- Bontrager Elite, 31.8mm, Blendr compatible, 7 degree
- Handlebars
- Bontrager alloy, 31.8mm, 5mm rise
- Seat Post
- Bontrager alloy, 31.6mm, 12mm offset
- Tape/Grips
- Bontrager XR Trail Comp, nylon lock-on
Wheels & Tires
- Hubs
- Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle<br>Rear: Formula DCL-141Q, sealed bearing, 6-bolt, Shimano 10 freehub, Boost141
- Tires
- Size XS, S: Bontrager XR3 Comp, wire bead, 30 tpi, 27.5" x 2.20<br>Size M, M/L, L, XL, XXL: Bontrager XR3 Comp, wire bead, 30tpi, 29" x 2.20
- Axles
- Front: 110 x 15mm thru axle<br>Rear: 141 x 5mm QR
- Spokes
- 14g, stainless
- Wheel Size
- 27.5-inch / 29-inch
Pedals
- Pedals
- VP-536 nylon platform
Accessories
- Rims/Wheels
- Bontrager Kovee, double-wall, Tubeless Ready, 23mm width, presta valve
- Color
- Radioactive Red/Trek Black
Weight & Sizing
- Size
- X-Small / Small / Medium / Medium/Large / Large / X-Large / XX-Large
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.