Trek Slash 8 Gen 5

Name: Trek Slash 8 Gen 5
Brand: Trek

2023 MountainEnduro Manufacturer page

Trek Slash 8 Gen 5, color Matte Hex Blue

Last known price: $4,299

Prices shown first for United States
Travel: 170 / 160 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 30t / 10–52t
Gear range: 520%
Weight: 15.5 kg 34.2 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

15.5" High
15.5" Low
17.5" High
17.5" Low
18.5" High
18.5" Low
19.5" High
19.5" Low
21.5" High
21.5" Low

The manufacturer did not publish rider heights for these sizes.

Components

17 of 19 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 Platinum Aluminum, internal storage, tapered head tube, Knock Block 2.0, Control Freak internal routing, downtube guard, shuttle guard, threaded BB, ISCG 05, 34.9mm seat tube, magnesium rocker link, Mino Link, ABP, Boost148, 160mm travel Not identified

Suspension

2 parts

Drivetrain

6 parts

Brakes

2 parts

Wheels and tires

2 parts

Cockpit and contact points

6 parts

Grips
- Bontrager
Handlebar
- Bontrager
Headset

Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom Not identified
Saddle
- Bontrager
Seatpost
- Tranz-X
JD-YSP39
Stem
- Bontrager

Sizes and geometry

10 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" High

Table

Reach 474mm

Stack 622mm

Wheelbase 1242mm

Head angle 64.6°

Seat angle 76.1°

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 10 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	431	425	456	450	474	469	491	486	521	516
Stackmm	618	621	618	622	622	626	631	635	654	658
Top tube lengthmm	584	585	609	610	628	629	647	649	683	684
Seat tube lengthmm	395	395	420	420	435	435	450	450	500	500
Head tube lengthmm	100	100	100	100	105	105	115	115	140	140
Head tube angle	64.6°	64.1°	64.6°	64.1°	64.6°	64.1°	64.6°	64.1°	64.6°	64.1°
Seat tube angle	76.1°	75.6°	76.1°	75.6°	76.1°	75.6°	76.1°	75.6°	76.1°	75.6°
Chainstay lengthmm	435	437	435	437	435	437	435	437	435	437
Wheelbasemm	1197	1197	1212	1222	1242	1243	1263	1264	1304	1305
Front centermm	763	762	778	786	808	807	829	828	870	869
Bottom bracket dropmm	22	29	22	29	22	29	22	29	22	29
Bottom bracket heightmm	352	345	352	345	352	345	352	345	352	345
Standover heightmm	712	706	750	744	750	744	760	754	780	774
Fork rakemm	44	44	35	43	44	43	44	43	44	43
Trailmm	130	134	130	134	130	134	130	134	130	134
Stack/reach ratio	1.43	1.46	1.36	1.38	1.31	1.34	1.29	1.31	1.26	1.28

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: 15.5 kg

34.2 lb
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Full suspension
Front travel: 170 mm
Rear travel: 160 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52
Lowest gear: 16.7 in
Highest gear: 87.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire clearance: Maximum tire width: 2.5″
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

5 measures

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

Front travel

170 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2023
Sample: 1,826 bicycles with this information
Coverage: 98.4% of the class

Rear travel

160 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2023
Sample: 1,567 bicycles with this information
Coverage: 84.5% of the class

Lowest gear

16.7 gear inches

This value is below the central range for this class.

Cohort: Mountain / Enduro Model year: 2023
Sample: 1,313 bicycles with this information
Coverage: 70.8% of the class

Highest gear

87.0 gear inches

This value is below the central range for this class.

Cohort: Mountain / Enduro Model year: 2023
Sample: 1,313 bicycles with this information
Coverage: 70.8% of the class

Shifting

Mechanical

365 of 1,854 bicycles with this information use electronic shifting.

Cohort: Mountain / Enduro Model year: 2023
Sample: 1,854 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.4 km/h
Highest gear: 33.3 km/h

Total gear range 520%

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: 16.7–87.0 gear inches
Class reference (p10–p90): 16.9–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Enduro Model year: 2023
Lowest gear: 1313 bicycles with this information, 70.8% of the class
Highest gear: 1313 bicycles with this information, 70.8% 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 2023 builds
Specification	This bicycle Trek Slash 8 Gen 5	Trek Slash 7 Gen 5	Trek Slash 9.7 Gen 5	Trek Slash 9.8	Trek Slash 9.8 Gen 5 GX AXS	Trek Slash 9.8 Gen 5 XT
Frame
Frame material	Aluminum	Aluminum	Carbon	Carbon	Carbon	Carbon
Bicycle weight	15.5 kg	15.5 kg	14.88 kg	14.5 kg	14.5 kg	14.7 kg
Drivetrain
Largest sprocket	52	51	51	52	52	51
Lowest gear	16.7 in	17.1 in	17.1 in	16.7 in	16.7 in	17.1 in
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Electronic	Electronic	Mechanical
Other specifications
Wheel material	Aluminum	Aluminum	Aluminum	Carbon	Carbon	Carbon