Norco Optic C9.1 Eagle

Name: Norco Optic C9.1 Eagle
Brand: Norco

2017 MountainCross-country

Last known price: $7,699

Prices shown first for United States
Travel: 120 / 110 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–50t
Gear range: 500%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

19 of 20 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

Optic Carbon. 110mm travel Not identified

Suspension

2 parts

Drivetrain

8 parts

Bottom bracket
- SRAM
Cassette
- SRAM XG-1295 Eagle 12 speeds 10–50t
XG-1295
Chain
- SRAM
Chain tensioner

None
Crankset
- SRAM S-650 Eagle 11 speeds 32t
S-650
Front derailleur

None
Rear derailleur
- SRAM XX1 Eagle 12 speeds
Shifters

None

Brakes

3 parts

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 441mm

Stack 598mm

Wheelbase 1144mm

Head angle 68.5°

Seat angle 74.9°

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 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	414	441	464	486
Stackmm	601	598	607	617
Top tube lengthmm	571	602	632	662
Seat tube lengthmm	410	445	485	530
Head tube lengthmm	93	90	100	110
Head tube angle	68.5°	68.5°	68.5°	68.5°
Seat tube angle	75.4°	74.9°	74.5°	74.1°
Chainstay lengthmm	425	430	435	440
Wheelbasemm	1114	1144	1175	1206
Front centermm	692	717	743	769
Bottom bracket dropmm	39	39	39	39
Bottom bracket heightmm	332	332	332	332
Standover heightmm	755	755	760	780
Fork rakemm	52	51	50	50
Trailmm	92	93	94	94
Stack/reach ratio	1.45	1.36	1.31	1.27
Suspension and parts
Front travelmm	120	120	120	120
Rear travelmm	110	110	110	110
Crank lengthmm	170	175	175	175
Handlebar widthmm	760	760	760	760
Stem lengthmm	50	50	50	50

Not published by the manufacturer: Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon

Suspension

Suspension configuration: Full suspension
Front travel: 120 mm
Rear travel: 110 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 50
Lowest gear: 18.6 in
Highest gear: 92.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 2.35″
Wheel material: Carbon
Wheel size: 29″

Technical analysis

3 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 above 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

18.6 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

Highest gear

92.8 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: 7.1 km/h
Highest gear: 35.5 km/h

Total gear range 500%

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: 18.6–92.8 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

Differences across 2017 builds
Specification	This bicycle Norco Optic C9.1 Eagle	Norco Optic A7.1	Norco Optic A7.2	Norco Optic A9.1	Norco Optic A9.2	Norco Optic C7.1
Frame
Frame material	Carbon	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Suspension
Front travel	120 mm	130 mm	130 mm	120 mm	120 mm	130 mm
Rear travel	110 mm	120 mm	120 mm	110 mm	110 mm	120 mm
Drivetrain
Rear sprockets	12	11	11	11	11	11
Largest sprocket	50	42	42	42	42	42
Lowest gear	18.6 in	22.1 in	22.1 in	22.1 in	22.1 in	22.1 in
Other specifications
Fork spring	Air	Air	Not informed	Air	Not informed	Air
Tire width	2.35″	2.25″	2.25″	2.25″	2.25″	2.25″
Wheel material	Carbon	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Bottom bracket standard	Not informed	Not informed	Not informed	Not informed	Not informed	BB86/BB92