Trek X-Caliber 8

Name: Trek X-Caliber 8
Brand: Trek

2018 MountainCross-country

Last known price: $1,069

Prices shown first for United States
Fork travel: 100 mm
Wheels: 27.5″, 29″
Drivetrain: 2 × 10 22–36t / 11–36t
Gear range: 536%
Weight: 13.06 kg 28.8 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

15.5"
17.5"
18.5"
19.5"
21.5"
23"

The manufacturer did not publish rider heights for these sizes.

Components

18 of 21 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Alpha Gold Aluminum, E2 tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141, G2 Geometry Not identified

Suspension

1 part

Fork
- RockShox 30

Drivetrain

7 parts

Bottom bracket

Sealed cartridge Not identified
Cassette
- Shimano CS-HG50-10 10 speeds
CS-HG50-10
Chain
- KMC X10 10 speeds
Crankset
- Race Face Ride 36/22t
Front derailleur
- Shimano Deore FD-M6020
FD-M6020
Rear derailleur
- Shimano Deore XT
Shifters
- Shimano Deore SL-M6000
SL-M6000

Brakes

1 part

Brakes
- Shimano Altus BR-M315
BR-M315

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Grips
- Bontrager
Handlebar
- Bontrager
Headset

Semi-integrated, 1-1/8˝ top, 1.5˝ bottom Not identified
Pedals
- Wellgo
Saddle
- Bontrager
Seatpost
- Bontrager
Stem
- Bontrager

Sizes and geometry

6 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 18.5"

Table

Reach 434mm

Stack 598mm

Wheelbase 1121mm

Head angle 69.5°

Seat angle 72.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	385	418	434	451	466	480
Stackmm	574	598	598	608	626	626
Top tube lengthmm	555	595	611	631	651	666
Seat tube lengthmm	368	419	444	470	521	559
Head tube lengthmm	90	90	90	100	120	120
Head tube angle	69.3°	69.5°	69.5°	69.5°	69.5°	69.5°
Seat tube angle	71.7°	72°	72°	72°	72°	72°
Chainstay lengthmm	425	438	438	438	438	438
Wheelbasemm	1053	1106	1121	1142	1164	1178
Front centermm	635	674	689	710	732	746
Bottom bracket dropmm	58	58	58	58	58	58
Bottom bracket heightmm	302	311	311	311	311	311
Standover heightmm	728	743	737	753	751	773
Fork rakemm	49	49	48	48	48	48
Trailmm	85	83	83	83	83	83
Stack/reach ratio	1.49	1.43	1.38	1.35	1.34	1.30

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 13.06 kg

28.8 lb
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 22
Largest chainring: 36
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 17.7 in
Highest gear: 94.9 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 2.2″
Wheel material: Aluminum
Wheel size: 27.5″, 29″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 771 bicycles with this information
Coverage: 97.9% of the class

Lowest gear

17.7 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 724 bicycles with this information
Coverage: 91.9% of the class

Highest gear

94.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 724 bicycles with this information
Coverage: 91.9% of the class

Shifting

Mechanical

18 of 787 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 787 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.8 km/h
Highest gear: 36.4 km/h

Total gear range 536%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 17.7–94.9 gear inches
Class reference (p10–p90): 16.5–105.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2018
Lowest gear: 724 bicycles with this information, 91.9% of the class
Highest gear: 724 bicycles with this information, 91.9% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2018 builds
Specification	This bicycle Trek X-Caliber 8	Trek X-Caliber 7	Trek X-Caliber 7 Women's	Trek X-Caliber 9
Frame
Intended fit	Unisex	Unisex	womens	Unisex
Bicycle weight	13.06 kg	13.74 kg	12.88 kg	12.61 kg
Drivetrain
Smallest chainring	22	22	22	26
Rear sprockets	10	9	9	11
Largest sprocket	36	36	36	42
Lowest gear	17.7 in	17.7 in	17.7 in	18.0 in
Other specifications
Fork spring	Air	Coil	Coil	Air
Bottom bracket standard	Not informed	Not informed	Not informed	BSA