Polygon Entiat TR8

2019 MountainTrail Manufacturer page

Last known price: $1,699

Prices shown first for United States
Fork travel: 120 mm
Wheels: 27.5″
Drivetrain: 1 × 11 34t / 11–46t
Gear range: 418%
Weight: 14.8 kg 32.6 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–170
MD 168–179
LG 176–187

Components

14 of 16 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

ALX TRAIL, BOOST 12X148MM O.L.D. POST MOUNT, INTERNAL SHIFTING ROUTE Not identified

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket
- Race Face
Cassette
- SunRace 11–46t
Chain
- KMC X11 11 speeds
X-11
Crankset
- Race Face Ride 34t
Rear derailleur
- Shimano Deore XT RD-M8000-GS
RD-M8000-GS
Shifters
- Shimano SLX SL-M7000
SL-M7000

Brakes

1 part

Brakes
- Shimano BR-M615
BR-M615

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Handlebar
- Entity
Pedals
- VP VP-195E MTB bike pedal
VP-195E
Saddle
- Entity
Seatpost

ADJUSTABLE HEIGHT W/ ALLOY, 30.9X400MM Not identified
Stem
- Entity

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 410mm

Stack 627mm

Wheelbase 1128mm

Head angle 68.0°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	383.5	410.1	430.8
Stackmm	622.8	627.4	632.1
Top tube lengthmm	565	596	621
Seat tube lengthmm	395	435	485
Head tube lengthmm	100	105	110
Head tube angle	68°	68°	68°
Seat tube angle	73.75°	73.5°	73.5°
Chainstay lengthmm	435	435	435
Wheelbasemm	1099.4	1127.9	1150.4
Front centermm	670	699	721
Bottom bracket dropmm	55	55	55
Bottom bracket heightmm	314	314	314
Standover heightmm	693	702	735
Fork rakemm	51	51	51
Trailmm	89	89	89
Stack/reach ratio	1.62	1.53	1.47

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: 14.8 kg

32.6 lb

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 46
Lowest gear: 20.3 in
Highest gear: 85.0 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
Tire width: 3″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

4 measures

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

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2019
Sample: 986 bicycles with this information
Coverage: 96.6% of the class

Lowest gear

20.3 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2019
Sample: 968 bicycles with this information
Coverage: 94.9% of the class

Highest gear

85.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2019
Sample: 968 bicycles with this information
Coverage: 94.9% of the class

Shifting

Mechanical

34 of 1,020 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2019
Sample: 1,020 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.8 km/h
Highest gear: 32.6 km/h

Total gear range 418%

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: 20.3–85.0 gear inches
Class reference (p10–p90): 16.5–92.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2019
Lowest gear: 968 bicycles with this information, 94.9% of the class
Highest gear: 968 bicycles with this information, 94.9% 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 2019 builds

Differences across 2019 builds
Specification	This bicycle Polygon Entiat TR8	Polygon Entiat TR6	Polygon Entiat TR 8
Frame
Bicycle weight	14.8 kg	15 kg	14.8 kg
Drivetrain
Smallest chainring	34	32	34
Largest chainring	34	32	34
Rear sprockets	11	10	11
Largest sprocket	46	42	46
Lowest gear	20.3 in	21.0 in	20.3 in
Highest gear	85.0 in	80.0 in	85.0 in
Cockpit
Seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost
Other specifications
Fork spring	Not informed	Air	Air