Felt Nine 80

2017 MountainCross-country

Last known price: $599

Prices shown first for United States
Fork travel: 100 mm
Wheels: 29″
Drivetrain: 3 × 8 22–42t / 11–34t
Gear range: 590%
Weight: 14.63 kg 32.3 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

16 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

Felt XC, butted 6061 aluminum, Hydroform, semi-integrated head tube, replaceable derailleur hanger, IS disc mounts, standard 73mm threaded bottom bracket, 135mm OLD, Ø30.9mm seatpost, Ø34.9mm low clamp front derailleur Not identified

Suspension

2 parts

Fork
- SR Suntour
Rear shock

None

Drivetrain

8 parts

Bottom bracket

Square taper Not identified
Cassette
- SunRace 11–34t
Chain
- SunRace
Chain guide

None
Crankset
- Shimano Tourney FC-TY501 8 speeds
FC-TY501
Front derailleur
- Shimano Altus
Rear derailleur
- Shimano Acera
Shifters
- Shimano Altus SL-M315
SL-M315

Brakes

2 parts

Brake levers
- Tektro
Brakes
- Tektro

Wheels and tires

5 parts

Front hub

Forged aluminum, 6-bolt, QRx100 Not identified
Rear hub

Forged aluminum, 6-bolt, QRx135 Not identified
Rims

Aluminum double wall, 18mm inside Not identified
Spokes

2.0mm stainless Not identified
Tires
- Schwalbe Rapid Rob

Cockpit and contact points

7 parts

Grips
- Felt
Handlebar
- Felt
Headset
- FSA NO.10
Pedals

Low-profile nylon platform Not identified
Saddle
- Felt
Seatpost
- Felt
Stem
- Felt

Other components

1 part

Fenders

None

Sizes and geometry

5 sizes Open in the geometry plotter

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

Size 16"

Table

Reach 397mm

Stack 614mm

Wheelbase 1075mm

Head angle 71.0°

Seat angle 73.0°

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 Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	384	397	414	—	448
Stackmm	595	614	623	632	642
Top tube lengthmm	560	585	605	625	645
Seat tube lengthmm	356	406	457	508	559
Head tube lengthmm	90	90	100	110	120
Head tube angle	71°	71°	71°	71°	71°
Seat tube angle	73.5°	73°	73°	73°	73°
Chainstay lengthmm	440	445	445	445	445
Wheelbasemm	1049	1075	1095	1115	1136
Front centermm	618	638	658	678	698
Bottom bracket dropmm	65	65	65	65	65
Bottom bracket heightmm	309	309	309	309	309
Standover heightmm	679	714	760	794	823
Fork rakemm	46	46	46	46	46
Trailmm	81	80	80	—	80
Stack/reach ratio	1.55	1.55	1.51	—	1.43

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: 14.63 kg

32.3 lb

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 22
Largest chainring: 42
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 18.8 in
Highest gear: 110.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Coil
Tire width: 2.1″
Wheel material: Aluminum
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

100 mm

This value is within 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

18.8 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

Highest gear

110.7 gear inches

This value is above 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: 7.2 km/h
Highest gear: 42.4 km/h

Total gear range 590%

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: 18.8–110.7 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 Felt Nine 80	Felt Nine 1	Felt Nine 3	Felt Nine 5	Felt Nine 60	Felt Nine 6
Frame
Frame material	Aluminum	Carbon	Carbon	Carbon	Aluminum	Carbon
Bicycle weight	14.63 kg	9.51 kg	10.82 kg	12.23 kg	13.47 kg	13.13 kg
Drivetrain
Front chainrings	3	1	1	2	3	3
Smallest chainring	22	30	30	24	22	22
Largest chainring	42	30	30	38	44	40
Rear sprockets	8	11	11	10	9	9
Smallest sprocket	11	10	11	11	11	11
Largest sprocket	34	42	40	36	36	36
Lowest gear	18.8 in	20.7 in	21.8 in	19.3 in	17.7 in	17.7 in
Highest gear	110.7 in	87.0 in	79.1 in	100.2 in	116.0 in	105.5 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Hydraulic disc
Other specifications
Fork spring	Coil	Not informed	Air	Air	Not informed	Not informed
Tire width	2.1″	2.1″	2.25″	2.25″	2.1″	2.25″