Norco Threshold A 105

2016 RoadCyclocross

Last known price: $1,310

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 36–46t / 11–28t
Gear range: 325%
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

45cm
48cm
50cm
53cm
55.5cm
58cm
60.5cm

The manufacturer did not publish rider heights for these sizes.

Components

14 of 18 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

Threshold X6 Double Butted Aluminum - Disc Not identified

Suspension

2 parts

Fork

Threshold Mid-Mod Full Carbon - TA Disc Not identified
Rear shock

None

Drivetrain

8 parts

Bottom bracket
- Shimano
Cassette
- Shimano CS-5800 11–28t
CS-5800
Chain
- Shimano CN-HG600-11
CN-HG600-11
Chain tensioner

None
Crankset
- Shimano FC-RS500 46/36t
FC-RS500
Front derailleur
- Shimano 105 FD-5800
FD-5800
Rear derailleur
- Shimano RD-5800-SS
RD-5800-SS
Shifters

Shift Housing w/Sealed End Caps - Matte Black Not identified

Brakes

3 parts

Brake levers
- Shimano ST-5800
ST-5800
Brakes
- Hayes
Disc rotors

None

Wheels and tires

4 parts

Front hub

None
Rear hub

Alloy 10x135mm QR Disc 28h - Black Not identified
Rims
- WTB
Tires

None

Cockpit and contact points

7 parts

Grips
- Norco
Handlebar
- Norco
Headset

None
Pedals

None
Saddle
- Norco
Seatpost
- Norco
Stem
- Norco

Sizes and geometry

7 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 53cm

Table

Reach 379mm

Stack 552mm

Wheelbase 1008mm

Head angle 71.5°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 7 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	362	367	372	379	389	398	407
Stackmm	513	523	534	552	569	589	609
Top tube lengthmm	495	507.5	520	537.5	555	572.5	590
Seat tube lengthmm	455	480	505	530	555	580	605
Head tube lengthmm	95	105	115	130	145	165	185
Head tube angle	70°	70°	70.5°	71.5°	72.25°	72.5°	72.75°
Seat tube angle	75.5°	75°	74.5°	74°	73.75°	73.5°	73.25°
Chainstay lengthmm	425	425	425	425	425	425	425
Wheelbasemm	992	1000	1004	1008	1016	1029	1041
Front centermm	576	585	589	593	601	613	626
Bottom bracket dropmm	67.5	67.5	67.5	67.5	67.5	67.5	67.5
Bottom bracket heightmm	282.5	282.5	282.5	282.5	282.5	282.5	282.5
Standover heightmm	739	749	765	784	804	825	846
Fork rakemm	45	45	44	45	45	45	44
Trailmm	77	77	75	67	63	61	60
Stack/reach ratio	1.42	1.43	1.44	1.46	1.46	1.48	1.50
Suspension and parts
Crank lengthmm	165	170	170	172.5	172.5	175	175
Handlebar widthmm	400	400	420	420	440	440	440
Stem lengthmm	80	90	90	100	100	110	110

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 36
Largest chainring: 46
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 28
Lowest gear: 37.3 in
Highest gear: 121.3 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

37.3 gear inches

This value is within the central range for this class.

Cohort: Road / Cyclocross Model year: 2016
Sample: 57 bicycles with this information
Coverage: 93.4% of the class

Highest gear

121.3 gear inches

This value is within the central range for this class.

Cohort: Road / Cyclocross Model year: 2016
Sample: 57 bicycles with this information
Coverage: 93.4% of the class

Shifting

Mechanical

2 of 61 bicycles with this information use electronic shifting.

Cohort: Road / Cyclocross Model year: 2016
Sample: 61 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 14.3 km/h
Highest gear: 46.4 km/h

Total gear range 325%

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: 37.3–121.3 gear inches
Class reference (p10–p90): 32.6–121.3 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Cyclocross Model year: 2016
Lowest gear: 57 bicycles with this information, 93.4% of the class
Highest gear: 57 bicycles with this information, 93.4% 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 2016 builds

Differences across 2016 builds
Specification	This bicycle Norco Threshold A 105	Norco Threshold A Sora	Norco Threshold C 105	Norco Threshold C Rival	Norco Threshold SL CX1 Force	Norco Threshold SL Ultegra
Frame
Frame material	Aluminum	Aluminum	Carbon	Carbon	Carbon	Carbon
Fork material	Carbon	Aluminum	Carbon	Carbon	Carbon	Carbon
Drivetrain
Front chainrings	2	2	2	1	1	2
Smallest chainring	36	36	36	42	42	36
Largest chainring	46	46	46	42	42	46
Rear sprockets	11	9	11	11	11	11
Largest sprocket	28	32	28	32	28	28
Lowest gear	37.3 in	32.6 in	37.3 in	38.1 in	43.5 in	37.3 in
Highest gear	121.3 in	121.3 in	121.3 in	110.7 in	110.7 in	121.3 in
Brakes
Brake type	Mechanical disc	Mechanical disc	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Other specifications
Wheel material	Aluminum	Aluminum	Aluminum	Aluminum	Carbon	Aluminum
Bottom bracket standard	Not informed	Not informed	PF30	PF30	PF30	PF30