Felt Double 70

2015 MountainFat bike

Last known price: $1,399

Prices shown first for United States
Suspension: Rigid
Wheels: 26″
Drivetrain: 3 × 9 22–44t / 11–36t
Gear range: 655%
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

SM 158–170
MD 168–179
LG 176–187

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 Fat, double-butted 6061 aluminum, Hydroform, ControlTaper integrated head tube, post disc mount, replaceable derailleur hanger, 100mm threaded bottom bracket, 190mm OLD, Ø30.9mm seatpost, Ø34.9mm clamp adaptor for high direct type front derailleur mount Not identified

Suspension

2 parts

Fork
- Felt
Rear shock

None

Drivetrain

8 parts

Bottom bracket

ISIS Taper 100MM Not identified
Cassette
- SunRace 11–36t
Chain
- SunRace
Chain guide

None
Crankset
- Race Face Ride
Front derailleur
- Shimano SLX
Rear derailleur
- Shimano Alivio
Shifters
- Shimano Deore

Brakes

2 parts

Brake levers
- Tektro
Brakes
- Tektro

Wheels and tires

5 parts

Front hub

Alloy Sealed bearing 6-bolt, 15 x 150mm OLD Not identified
Rear hub

Alloy Sealed bearing 6-bolt, 12 x 197mm OLD Not identified
Rims

Single-wall i75, 26" Not identified
Spokes

2.0mm stainless steel Not identified
Tires
- Schwalbe Jumbo Jim

Cockpit and contact points

7 parts

Grips
- Felt
Handlebar
- Felt
Headset
- FSA NO.57E
Pedals

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

Other components

1 part

Fenders

None

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 422mm

Stack 613mm

Wheelbase 1120mm

Head angle 70.0°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 26″ 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
Reachmm	396	422	448
Stackmm	599	613	628
Top tube lengthmm	580	610	640
Seat tube lengthmm	406	470	533
Head tube lengthmm	105	120	135
Head tube angle	70°	70°	70°
Seat tube angle	73°	73°	73°
Chainstay lengthmm	455	455	455
Wheelbasemm	1090	1120	1151
Front centermm	642	673	704
Bottom bracket dropmm	65	65	65
Bottom bracket heightmm	278	278	278
Fork rakemm	45	45	45
Trailmm	76	77	77
Stack/reach ratio	1.51	1.45	1.40

Not published by the manufacturer: Standover height, 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
Fork material: Aluminum

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 22
Largest chainring: 44
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 15.9 in
Highest gear: 104.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 4″
Travel: Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 26″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.1 km/h
Highest gear: 39.8 km/h

Total gear range 654%

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: 15.9–104.0 gear inches

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 Felt Double 70	Felt Double 30
Frame
Bicycle weight	Not informed	14.1 kg
Drivetrain
Front chainrings	3	2
Smallest chainring	22	24
Largest chainring	44	38
Rear sprockets	9	10
Lowest gear	15.9 in	17.3 in
Highest gear	104.0 in	89.8 in
Brakes
Brake type	Mechanical disc	Hydraulic disc