Norco Sight A 7.2 Forma

2015 MountainTrail

Last known price: $2,140

Prices shown first for United States
Travel: 140 / 140 mm Fork / rear shock
Wheels: 27.5″
Drivetrain: 2 × 10 24–38t / 11–36t
Gear range: 518%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 151–164
SM 160–172
MD 166–179

Components

20 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

Sight 27.5 aluminum 140 mm travel Not identified

Suspension

2 parts

Drivetrain

8 parts

Bottom bracket
- Shimano
Cassette
- Shimano CS-HG50-10 10 speeds 11–36t
CS-HG50-10HG-50
Chain
- SRAM PC-1031 10 speeds
PC-1031
Chain tensioner

None
Crankset
- Shimano FC-M615 38/24t
FC-M615
Front derailleur
- SRAM X5 High Direct Mount 10 speeds
Rear derailleur
- Shimano Deore
Shifters
- Jagwire

Brakes

3 parts

Brake levers
- Shimano
Brakes
- Shimano BL-M396
BL-M396
Disc rotors

None

Wheels and tires

4 parts

Front hub

Aluminum MTB w/disc 15mm axle Not identified
Rear hub

Aluminum 142x12mm through hole disc Not identified
Rims
- Alex Rims
Tires
- Kenda

Cockpit and contact points

7 parts

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

Table

Reach 402mm

Stack 583mm

Wheelbase 1105mm

Head angle 67.5°

Seat angle 74.6°

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
Frame
Reachmm	381	402	421
Stackmm	574	583	592
Top tube lengthmm	535	562	588
Seat tube lengthmm	380	405	435
Head tube lengthmm	90	100	110
Head tube angle	67.5°	67.5°	67.5°
Seat tube angle	74.9°	74.6°	74.2°
Chainstay lengthmm	419	423	427
Wheelbasemm	1077	1105	1132
Front centermm	662	687	707
Bottom bracket dropmm	15	15	15
Bottom bracket heightmm	339	339	339
Standover heightmm	745	739	739
Fork rakemm	42	42	42
Trailmm	102	102	102
Stack/reach ratio	1.51	1.45	1.41
Suspension and parts
Front travelmm	140	140	140
Rear travelmm	140	140	140

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Full suspension
Front travel: 140 mm
Rear travel: 140 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 24
Largest chainring: 38
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 18.3 in
Highest gear: 95.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 2.35″
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.

Front travel

140 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2015
Sample: 155 bicycles with this information
Coverage: 93.3% of the class

Lowest gear

18.3 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2015
Sample: 163 bicycles with this information
Coverage: 98.1% of the class

Highest gear

95.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2015
Sample: 163 bicycles with this information
Coverage: 98.1% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.0 km/h
Highest gear: 36.4 km/h

Total gear range 518%

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: 18.3–95.0 gear inches
Class reference (p10–p90): 16.8–104.4 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2015
Lowest gear: 163 bicycles with this information, 98.1% of the class
Highest gear: 163 bicycles with this information, 98.1% 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 2015 builds

Differences across 2015 builds
Specification	This bicycle Norco Sight A 7.2 Forma	Norco Sight A 7.0	Norco Sight A 7.1	Norco Sight A 7.2	Norco Sight C 7.1	Norco Sight C 7.2
Frame
Frame material	Aluminum	Aluminum	Aluminum	Aluminum	Carbon	Carbon
Drivetrain
Front chainrings	2	2	2	2	1	1
Smallest chainring	24	24	24	24	32	32
Largest chainring	38	38	38	38	32	32
Rear sprockets	10	10	10	10	11	11
Smallest sprocket	11	11	11	11	10	10
Largest sprocket	36	36	36	36	42	42
Lowest gear	18.3 in	18.3 in	18.3 in	18.3 in	21.0 in	21.0 in
Highest gear	95.0 in	95.0 in	95.0 in	95.0 in	88.0 in	88.0 in
Cockpit
Seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost
Other specifications
Fork spring	Air	Air	Air	Air	Not informed	Air
Tire width	2.35″	2.25″	2.25″	2.35″	2.35″	2.35″
Bottom bracket standard	Not informed	Not informed	Not informed	Not informed	BB86/BB92	BB86/BB92