Felt Doctrine 3

Name: Felt Doctrine 3
Brand: Felt

2018 MountainCross-country

Last known price: $2,999

Prices shown first for United States
Fork travel: 100 mm
Wheels: 29″
Drivetrain: 1 × 12 34t / 10–50t
Gear range: 500%
Weight: 11.02 kg 24.3 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

18 of 22 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, UHC Advanced carbon fiber, MMC with InsideOut construction, full carbon dropouts, ControlTaper head tube, Kevlar chain watcher, replaceable derailleur hanger, flat mount disc mounts, BB92, 12 x 148mm Syntace style thru axle, internal derailleur cable routing Not identified

Suspension

2 parts

Fork
- RockShox Reba
Rear shock

None

Drivetrain

8 parts

Bottom bracket
- Truvativ PowerSpline
Cassette
- SRAM 10–50t
Chain
- SRAM GX
Chain guide
- OneUp
Crankset
- Truvativ STYLO 6K 11 speeds 34t
Front derailleur

None
Rear derailleur
- SRAM GX Eagle 12 speeds
Shifters
- SRAM GX

Brakes

2 parts

Brake levers
- Shimano
Brakes
- Shimano

Wheels and tires

5 parts

Front hub

15 x 110mm Boost thru axle, Center Lock Not identified
Rear hub

XD driver, 12 x 148mm Boost thru axle, Center Lock, 32H Not identified
Rims
- Alex Rims
Spokes

2.0mm stainless steel Not identified
Tires
- Maxxis

Cockpit and contact points

7 parts

Grips
- Devox
Handlebar
- Devox
Headset
- FSA
Pedals

None
Saddle
- Prologo
Seatpost
- Prologo
Stem
- Devox

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 18"

Table

Reach 422mm

Stack 620mm

Wheelbase 1109mm

Head angle 69.5°

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	403	422	441	461
Stackmm	602	611	620	630	639
Top tube lengthmm	568	590	590	634	656
Seat tube lengthmm	360	400	451	502	554
Head tube lengthmm	90	95	95	115	125
Head tube angle	69.5°	—	69.5°	69.5°	69.5°
Seat tube angle	73°	73°	73°	73°	73°
Chainstay lengthmm	430	430	430	430	430
Wheelbasemm	1066	1084	1109	1132	1155
Front centermm	644	665	688	710	733
Bottom bracket dropmm	61	65	65	65	65
Bottom bracket heightmm	313	309	309	309	309
Standover heightmm	683	714	757	799	841
Fork rakemm	51	51	51	51	51
Trailmm	86	174	86	86	86
Stack/reach ratio	1.57	1.52	1.47	1.43	1.39

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: Carbon
Bicycle weight: 11.02 kg

24.3 lb

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 50
Lowest gear: 19.7 in
Highest gear: 98.6 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: BB86/BB92
Fork spring: Air
Tire width: 2.2″
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

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 771 bicycles with this information
Coverage: 97.9% of the class

Lowest gear

19.7 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 724 bicycles with this information
Coverage: 91.9% of the class

Highest gear

98.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 724 bicycles with this information
Coverage: 91.9% of the class

Shifting

Mechanical

18 of 787 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 787 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.6 km/h
Highest gear: 37.8 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: 19.7–98.6 gear inches
Class reference (p10–p90): 16.5–105.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2018
Lowest gear: 724 bicycles with this information, 91.9% of the class
Highest gear: 724 bicycles with this information, 91.9% 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 2018 builds

Differences across 2018 builds
Specification	This bicycle Felt Doctrine 3	Felt Doctrine 1	Felt Doctrine 5
Frame
Bicycle weight	11.02 kg	9.91 kg	11.94 kg
Drivetrain
Smallest chainring	34	34	32
Largest chainring	34	34	32
Rear sprockets	12	12	11
Smallest sprocket	10	10	11
Largest sprocket	50	50	42
Lowest gear	19.7 in	19.7 in	22.1 in
Highest gear	98.6 in	98.6 in	84.4 in