K2 Mainframe 2.0W

2015 RoadGeneral road

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 34–50t / 11–28t
Gear range: 374%
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

7 of 17 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

700C Road X6 Butted Aluminum Hydro Formed Tubing, Tapered Headtube, PF-30, Not identified

PF-30

Suspension

1 part

Fork

700C Carbon Bladed w/ Alloy Tapered Steerer Tube Not identified

Drivetrain

5 parts

Bottom bracket

PF30, press-fit Not identified
Cassette
- SRAM
Chain
- KMC X11 11 speeds
Crankset
- SRAM Rival 12 speeds 34/50t
Shifters
- SRAM Rival

Brakes

1 part

Brakes
- Tektro

Wheels and tires

4 parts

Front hub

Alloy QR Not identified
Rear hub

Alloy Cassette QR Not identified
Spokes

Stainless 14G Not identified
Tires
- Vittoria

Cockpit and contact points

5 parts

Grips

Padded Cork Tape Not identified
Handlebar

Alluminum Compact Bend, 31.8mm Bar Bore Not identified
Headset
- FSA
Seatpost

Alloy Micro Adjust Not identified
Stem

Aluminum Four Bolt Clamp, 31.8mm Bar Bore Not identified

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 MD

Table

Geometry diagram unavailable

The drawing needs reach and stack, which the manufacturer did not publish. Available facts remain in the table.

Size

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	515	535	550	565	580
Seat tube lengthmm	450	480	510	540	570
Head tube lengthmm	116	138	165	180	195
Head tube angle	72.5°	73°	73°	73°	73°
Seat tube angle	74°	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	410	410	410	410	410
Wheelbasemm	959.1	969.9	990.5	1005.3	1022.1
Front centermm	559	570	590	605	622
Bottom bracket dropmm	68	68	68	68	68
Bottom bracket heightmm	268	268	268	268	268

Not published by the manufacturer: Reach, Stack, Standover height, Fork rake, Trail, Stack/reach ratio, 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: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 28
Lowest gear: 35.2 in
Highest gear: 131.8 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: PF30
Tire width: 23c
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

35.2 gear inches

This value is within the central range for this class.

Cohort: Road / General road Model year: 2015
Sample: 42 bicycles with this information
Coverage: 97.6% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / General road Model year: 2015
Sample: 42 bicycles with this information
Coverage: 97.6% of the class

Shifting

Mechanical

2 of 43 bicycles with this information use electronic shifting.

Cohort: Road / General road Model year: 2015
Sample: 43 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.5 km/h
Highest gear: 50.5 km/h

Total gear range 374%

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: 35.2–131.8 gear inches
Class reference (p10–p90): 24.9–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / General road Model year: 2015
Lowest gear: 42 bicycles with this information, 97.6% of the class
Highest gear: 42 bicycles with this information, 97.6% 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 2015 builds

Differences across 2015 builds
Specification	This bicycle K2 Mainframe 2.0W	K2 Mainframe 1.0	K2 Mainframe 2.0	K2 Mainframe 3.0
Frame
Frame material	Aluminum	Aluminum	Aluminum	Carbon
Drivetrain
Rear sprockets	11	10	11	11
Largest sprocket	28	32	28	28
Lowest gear	35.2 in	30.8 in	35.2 in	35.2 in
Brakes
Brake type	Mechanical disc	Rim brake	Mechanical disc	Mechanical disc