Alchemy Arktos Build 27.5" Shimano XT

Name: Alchemy Arktos Build 27.5" Shimano XT
Brand: Alchemy

2018 MountainTrail Manufacturer page

Last known price: $6,700

Prices shown first for United States
Wheels: 27.5″
Drivetrain: 1 × 11 32t / 11–46t
Gear range: 418%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–170
MD 165.1–177.8
LG 175.3–188
XL 180.3–195.6

Components

18 of 23 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

Carbon Fiber Not identified

Suspension

2 parts

Fork
- Fox 36
Rear shock
- Fox

Drivetrain

8 parts

Bottom bracket

Threaded, 73mm Not identified
Cassette
- Shimano Deore XT CS-M8000 11 speeds
CS-M8000
Chain
- Shimano Deore XT
Chain guide

None
Crankset
- Shimano Deore XT FC-M8000
FC-M8000
Front derailleur

None
Rear derailleur
- Shimano Deore XT
Shifters
- Shimano Deore XT SL-M8000
SL-M8000

Brakes

2 parts

Wheels and tires

5 parts

Front hub
- Mavic
ITS-4
Rear hub
- Mavic
ITS-4
Rims
- Mavic
Spokes

Steel Not identified
Tires
- Maxxis Minion

Cockpit and contact points

7 parts

Grips
- Ergon
Handlebar
- Race Face Aeffect R
Headset

IS41 upper, IS52 lower Not identified
Pedals

None included Not identified
Saddle
- Fizik
Seatpost
- Fox TRANSFER
Stem
- Race Face Aeffect R

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

The drawing needs wheelbase, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	401	415	431	448
Stackmm	589	599	604	614
Top tube lengthmm	585	600	615	642
Seat tube lengthmm	420	455	483	518
Head tube lengthmm	100	110	115	130
Head tube angle	66°	66°	66°	66°
Seat tube angle	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	438	438	438	438
Bottom bracket dropmm	10	10	10	10
Bottom bracket heightmm	345	345	345	345
Stack/reach ratio	1.47	1.44	1.40	1.37

Not published by the manufacturer: Wheelbase, Front center, Standover height, Fork rake, Trail, 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: Carbon

Suspension

Suspension configuration: Full suspension

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 46
Lowest gear: 19.1 in
Highest gear: 80.0 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
Travel: Front: Additional specification: Not available: No
Rear: Additional specification: Not available: No
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

3 measures

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

Lowest gear

19.1 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 836 bicycles with this information
Coverage: 89.9% of the class

Highest gear

80.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 836 bicycles with this information
Coverage: 89.9% of the class

Shifting

Mechanical

25 of 929 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2018
Sample: 929 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.3 km/h
Highest gear: 30.6 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: 19.1–80.0 gear inches
Class reference (p10–p90): 16.5–93.5 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2018
Lowest gear: 836 bicycles with this information, 89.9% of the class
Highest gear: 836 bicycles with this information, 89.9% 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

Differences across 2018 builds
Specification	This bicycle Alchemy Arktos Build 27.5" Shimano XT	Alchemy Arktos Build 27.5" GX Eagle	Alchemy Arktos 29" Shimano XT	Alchemy Arktos 29" Shimano XTR	Alchemy Arktos Build 27.5" Shimano XTR	Alchemy Arktos 29" SRAM GX Eagle
Suspension
Front travel	Not informed	Not informed	150 mm	150 mm	Not informed	150 mm
Rear travel	Not informed	Not informed	140 mm	140 mm	Not informed	140 mm
Drivetrain
Smallest chainring	32	30	32	30	30	30
Largest chainring	32	30	32	30	30	30
Rear sprockets	11	12	11	11	11	12
Smallest sprocket	11	10	11	11	11	10
Largest sprocket	46	50	46	46	46	50
Lowest gear	19.1 in	16.5 in	20.2 in	18.9 in	17.9 in	17.4 in
Highest gear	80.0 in	82.5 in	84.4 in	79.1 in	75.0 in	87.0 in
Other specifications
Fork spring	Air	Air	Not informed	Not informed	Air	Not informed
Wheel material	Aluminum	Aluminum	Aluminum	Carbon	Carbon	Aluminum
Wheel size	27.5″	27.5″	29″	29″	27.5″	29″
Tire width	Not informed	Not informed	2.3″	2.3″	Not informed	2.3″