Trek X-Caliber 8

Name: Trek X-Caliber 8
Brand: Trek

2017 MountainCross-country

Last known price: $1,099

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 w/semi-integrated head tube, mechanically formed & butted tubing, race geometry, internal front derailleur routing, rack & fender mounts, G2 Geometry on 29ers Not identified

Suspension

1 part

Fork
- RockShox Recon TK 15x100

Drivetrain

7 parts

Bottom bracket

Sealed cartridge Not identified
Cassette
- SRAM PG-1020 10 speeds
PG-1020
Chain
- KMC X10 10 speeds
Crankset
- SRAM 36/22t
Front derailleur
- SRAM X7
Rear derailleur
- SRAM GX
Shifters
- SRAM X5

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

1-1/8" threadless, semi-integrated, semi-cartridge bearings 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 428mm

Stack 601mm

Wheelbase 1128mm

Head angle 69.6°

Seat angle 72.3°

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	381	413	428	444	458	472
Stackmm	585	600	601	601	620	620
Top tube lengthmm	560	602	620	639	659	673
Seat tube lengthmm	394	419	444	470	521	559
Head tube lengthmm	100	100	100	100	120	120
Head tube angle	69.3°	69.3°	69.6°	69.6°	69.6°	69.6°
Seat tube angle	73°	72.5°	72.3°	72°	72°	72°
Chainstay lengthmm	438	445	445	445	445	445
Wheelbasemm	1066	1116	1128	1144	1165	1179
Front centermm	632	676	688	704	725	739
Bottom bracket dropmm	48	53	53	53	53	53
Bottom bracket heightmm	306	316	316	316	316	316
Standover heightmm	745	765	777	789	825	848
Fork rakemm	44	51	51	51	51	51
Trailmm	87	85	83	83	83	83
Stack/reach ratio	1.54	1.45	1.40	1.35	1.35	1.31

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: Coil
Tire width: 2.2″
Wheel material: Aluminum
Wheel size: 27.5″, 29″

Technical analysis

3 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: 2017
Sample: 555 bicycles with this information
Coverage: 87.8% of the class

Lowest gear

17.7 gear inches

This value is below the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 607 bicycles with this information
Coverage: 96.0% 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: 2017
Sample: 607 bicycles with this information
Coverage: 96.0% 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): 17.0–110.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2017
Lowest gear: 607 bicycles with this information, 96.0% of the class
Highest gear: 607 bicycles with this information, 96.0% 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 2017 builds
Specification	This bicycle Trek X-Caliber 8	Trek X-Caliber 7	Trek X-Caliber 9
Frame
Bicycle weight	13.06 kg	13.97 kg	12.93 kg
Drivetrain
Front chainrings	2	3	2
Largest chainring	36	40	36
Rear sprockets	10	9	10
Largest sprocket	36	34	36
Lowest gear	17.7 in	18.8 in	17.7 in
Highest gear	94.9 in	105.5 in	94.9 in
Other specifications
Fork spring	Coil	Coil	Air

Changes since 2016
Specification	2016 Trek X-Caliber 8	This bicycle Trek X-Caliber 8
Frame
Bicycle weight	Not informed	13.06 kg
Weight limit	Not informed	136 kg
Suspension
Suspension configuration	Not informed	Hardtail
Front travel	Not informed	100 mm
Other specifications
Fork spring	Not informed	Coil
Suspension	Not informed	Hardtail