Felt B2 R

2010 RoadTriathlon

Last known price: $4,599

Prices shown first for United States
Suspension: Rigid
Wheels: 650c, 700c
Drivetrain: 2 × 10 39–53t / 12–25t
Gear range: 283%
Weight: 8.65 kg 19.1 lb · Reference configuration not specified
Frame: Carbon
Brakes: Rim brake

Sizes

Size guide

48cm
50cm
52cm
54cm
56cm
58cm
60cm

The manufacturer did not publish rider heights for these sizes.

Components

21 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 Tri Specific UHM Ultra-High Modulus modular carbon fiber frame with 3KP finish; full aero tubeset with front & rear wheel recesses; internal cable routing, forged horizontal dropouts Not identified

Suspension

2 parts

Fork
- Felt
Rear shock

None

Drivetrain

8 parts

Bottom bracket
- SRAM
Cassette
- SRAM 12–25t
OG-1070
Chain
- SRAM
Chain guide

None
Crankset
- SRAM Red 53/39t
Front derailleur
- SRAM Red
Rear derailleur
- SRAM Red
Shifters
- SRAM

Brakes

2 parts

Brake levers
- SRAM
Brakes
- Pivot

Wheels and tires

5 parts

Front hub
- Felt
TTR-2
Rear hub
- Felt
TTR-2
Rims
- Felt
TTR-2
Spokes
- Sapim Aero
Tires
- Vittoria

Cockpit and contact points

7 parts

Grips
- Devox
Handlebar
- Felt
Headset
- Felt
Pedals

None
Saddle
- Felt
Seatpost
- Felt
Stem
- Felt

Other components

1 part

Fenders

None

Sizes and geometry

7 sizes

Rider-height ranges are not published for these sizes.

Size

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon
Bicycle weight: 8.65 kg

19.1 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 39
Largest chainring: 53
Rear sprockets: 10
Smallest sprocket: 12
Largest sprocket: 25
Lowest gear: 45.2 in
Highest gear: 128.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 23c
Wheel material: Aluminum
Wheel size: 650c, 700c

Technical analysis

1 measure

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

Shifting

Mechanical

2 of 37 bicycles with this information use electronic shifting.

Cohort: Road / Triathlon Model year: 2010
Sample: 37 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 17.3 km/h
Highest gear: 49.1 km/h

Total gear range 283%

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: 45.2–128.1 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 2010 builds

Differences across 2010 builds
Specification	This bicycle Felt B2 R	Felt B2	Felt B2 Pro
Frame
Bicycle weight	8.65 kg	8.72 kg	8.24 kg
Drivetrain
Smallest chainring	39	42	39
Largest chainring	53	54	53
Lowest gear	45.2 in	48.7 in	45.2 in
Highest gear	128.1 in	130.5 in	128.1 in
Other specifications
Wheel material	Aluminum	Aluminum	Carbon