Kona CoilAir

2012 MountainDownhill

Travel: 180 / 200 mm Fork / rear shock
Wheels: 26″
Drivetrain: 3 × 10 13–36t / 11–36t
Gear range: 906%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

23 of 25 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

Kona Clump Butted Aluminum Butted 120-200mm travel Not identified

Suspension

2 parts

Drivetrain

7 parts

Bottom bracket
- FSA
Cassette
- SRAM PG-1030 10 speeds
PG-1030
Chain
- SRAM PC-1031 10 speeds
PC-1031
Crankset

E*13/36/24 Not identified
Front derailleur
- Shimano SLX
Rear derailleur
- SRAM X9
Shifters
- SRAM X5

Brakes

3 parts

Wheels and tires

5 parts

Cockpit and contact points

7 parts

Grips
- Kona
Handlebar
- Kona
Headset
- FSA
Pedals
- Kona
Saddle
- WTB
Seatpost
- Kona
Stem
- Kona

Sizes and geometry

7 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 420mm

Stack 600mm

Wheelbase 1195mm

Head angle 66.0°

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 Reach Stack

Complete manufacturer geometry table 7 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	375	395	410	420	430	445	470
Stackmm	590	595	600	600	605	605	610
Top tube lengthmm	560	585	595	610	620	635	660
Seat tube lengthmm	365	405	430	455	485	510	560
Head tube lengthmm	125	130	135	135	140	140	145
Head tube angle	66°	66°	66°	66°	66°	66°	66°
Seat tube angle	73°	73°	73°	73°	73°	73°	73°
Chainstay lengthmm	480	480	480	480	480	480	480
Wheelbasemm	1145	1165	1180	1195	1205	1220	1245
Front centermm	695	720	735	745	760	770	800
Bottom bracket dropmm	-17	-17	-17	-17	-17	-17	-17
Bottom bracket heightmm	360	360	360	360	360	360	360
Standover heightmm	790	800	810	820	830	840	855
Fork rakemm	45	45	45	45	45	45	45
Trailmm	133	135	137	132	134	134	136
Stack/reach ratio	1.57	1.51	1.46	1.43	1.41	1.36	1.30

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

Suspension

Suspension configuration: Full suspension
Front travel: 180 mm
Rear travel: 200 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 13
Largest chainring: 36
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 9.4 in
Highest gear: 85.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 2.4″
Wheel material: Aluminum
Wheel size: 26″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 3.6 km/h
Highest gear: 32.6 km/h

Total gear range 906%

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: 9.4–85.1 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.

Changes since 2011

Changes since 2011
Specification	2011 Kona Coilair	This bicycle Kona CoilAir
Drivetrain
Rear sprockets	9	10
Largest sprocket	34	36
Lowest gear	9.9 in	9.4 in
Brakes
Brake type	Mechanical disc	Hydraulic disc
Other specifications
Tire width	2.5″	2.4″