NS Eccentric Alu 29

Name: NS Eccentric Alu 29
Brand: NS

2021 MountainTrail Manufacturer page

Fork travel: 140 mm
Wheels: 29″
Drivetrain: 1 × 12 32t / 11–50t
Gear range: 455%
Weight: 13.8 kg 30.4 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

11 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

Aluminum Not identified

Suspension

2 parts

Drivetrain

8 parts

Brakes

2 parts

Wheels and tires

5 parts

Front hub

NS Rotary, sealed bearings, 110x15mm Boost front, 148x12mm Boost rear with HG driver Not identified
Rear hub

NS Rotary, sealed bearings, 110x15mm Boost front, 148x12mm Boost rear with HG driver Not identified
Rims

Octane One Solar, 32 hole, tubeless compatible Not identified
Spokes

14mm nipples Not identified
Tires
- Maxxis Aggressor

Cockpit and contact points

7 parts

Grips

NS Hold Fast Not identified
Handlebar

NS, 780mm width, 31.8mm clamp diameter, 20mm rise Not identified
Headset

GW integrated tapered IS42/IS52, sealed bearings Not identified
Pedals

None
Saddle

Octane One Rocket2, CrMo hollow rails Not identified
Seatpost
- X-Fusion
Stem

Octane One Tone, 31.8mm bar clamp, 45mm length Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 450mm

Stack 641mm

Wheelbase 1203mm

Head angle 65.0°

Seat angle 74.0°

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 Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	425	450	475
Stackmm	641	641	650
Top tube lengthmm	609	634	662
Seat tube lengthmm	412	450	500
Head tube lengthmm	105	115	125
Head tube angle	65°	65°	65°
Seat tube angle	74°	74°	74°
Chainstay lengthmm	430	430	430
Wheelbasemm	1183	1203	1232
Front centermm	760	780	808
Bottom bracket dropmm	60	60	60
Bottom bracket heightmm	314	314	314
Standover heightmm	745	767	802
Fork rakemm	56	51	51
Trailmm	113	118	118
Stack/reach ratio	1.51	1.42	1.37

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: 13.8 kg

30.4 lb

Suspension

Suspension configuration: Hardtail
Front travel: 140 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50
Lowest gear: 18.6 in
Highest gear: 84.4 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: 2.5″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

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

Front travel

140 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,325 bicycles with this information
Coverage: 98.1% of the class

Lowest gear

18.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,138 bicycles with this information
Coverage: 84.2% of the class

Highest gear

84.4 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,138 bicycles with this information
Coverage: 84.2% of the class

Shifting

Mechanical

53 of 1,347 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,347 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.1 km/h
Highest gear: 32.3 km/h

Total gear range 455%

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: 18.6–84.4 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 / Trail Model year: 2021
Lowest gear: 1138 bicycles with this information, 84.2% of the class
Highest gear: 1138 bicycles with this information, 84.2% 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 2021 builds
Specification	This bicycle NS Eccentric Alu 29	NS Eccentric Cromo	NS Eccentric Cromo 29	NS Eccentric Lite 1	NS Eccentric Lite 2
Frame
Frame material	Aluminum	Steel	Steel	Aluminum	Aluminum
Bicycle weight	13.8 kg	13.9 kg	Not informed	13.2 kg	14.2 kg
Suspension
Suspension configuration	Hardtail	Hardtail	Not informed	Hardtail	Hardtail
Front travel	140 mm	140 mm	Not informed	120 mm	120 mm
Drivetrain
Front chainrings	1	1	Not informed	1	1
Smallest chainring	32	32	Not informed	32	30
Largest chainring	32	32	Not informed	32	30
Rear sprockets	12	12	Not informed	12	10
Smallest sprocket	11	11	Not informed	11	11
Largest sprocket	50	51	Not informed	51	42
Lowest gear	18.6 in	18.2 in	Not informed	18.2 in	20.7 in
Highest gear	84.4 in	84.4 in	Not informed	84.4 in	79.1 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Not informed	Hydraulic disc	Hydraulic disc
Cockpit
Seatpost	Dropper seatpost	Dropper seatpost	Not informed	Rigid seatpost	Rigid seatpost
Other specifications
Bottom bracket standard	BSA	BSA	Not informed	BSA	BSA
Suspension	Hardtail	Hardtail	Not informed	Hardtail	Hardtail
Tire width	2.5″	2.5″	Not informed	2.4″	2.35″
Wheel material	Aluminum	Aluminum	Not informed	Aluminum	Aluminum
Fork spring	Not informed	Not informed	Not informed	Air	Coil