Kona Unit

2015 MountainCross-country

Suspension: Rigid
Wheels: 29″
Drivetrain: 1 × 1 32t / 18t
Gear range: 100%
Frame: Steel
Brakes: Mechanical disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

17 of 21 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

Reynolds 520 Butted Cromoly Not identified

Suspension

2 parts

Fork
- Kona
Rear shock

None

Drivetrain

7 parts

Bottom bracket
- FSA
Cassette
- Joytech
Chain
- KMC
Crankset

32t Not identified
Front derailleur

None
Rear derailleur

None
Shifters

None

Brakes

3 parts

Wheels and tires

5 parts

Front hub
- Joytech
Rear hub
- Joytech
Rims
- WTB
Spokes

Sandvik Stainless 15g fr / 14g rr Not identified
Tires
- Maxxis Ardent

Cockpit and contact points

7 parts

Grips
- Kona
Handlebar
- Kona
Headset

TH ZST No.10 Not identified
Pedals
- Kona
Saddle
- WTB Volt
Seatpost
- Kona
Stem
- Kona

Sizes and geometry

4 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 17"

Table

Reach 416mm

Stack 594mm

Wheelbase 1090mm

Head angle 70.0°

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 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	393	416	438	461
Stackmm	584	594	603	613
Top tube lengthmm	572	597	622	648
Seat tube lengthmm	381	432	483	533
Head tube lengthmm	105	115	125	135
Head tube angle	70°	70°	70°	70°
Seat tube angle	73°	73°	73°	73°
Chainstay lengthmm	434	434	434	434
Wheelbasemm	1064	1090	1115	1142
Front centermm	636	662	687	713
Bottom bracket dropmm	56	56	56	56
Bottom bracket heightmm	318	318	318	318
Standover heightmm	730	760	790	820
Fork rakemm	45	45	45	45
Trailmm	87	88	88	88
Stack/reach ratio	1.49	1.43	1.38	1.33

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: Steel
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 1
Smallest sprocket: 18
Largest sprocket: 18
Lowest gear: 51.6 in
Highest gear: 51.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: No shifting

Additional specifications

Tire width: 2.25″
Travel: Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

2 measures

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

Lowest gear

51.6 gear inches

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2015
Sample: 410 bicycles with this information
Coverage: 92.7% of the class

Highest gear

51.6 gear inches

This value is below the central range for this class.

Cohort: Mountain / Cross-country Model year: 2015
Sample: 410 bicycles with this information
Coverage: 92.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 19.7 km/h
Highest gear: 19.7 km/h

Total gear range 100%

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: 51.6–51.6 gear inches
Class reference (p10–p90): 16.8–110.7 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2015
Lowest gear: 410 bicycles with this information, 92.7% of the class
Highest gear: 410 bicycles with this information, 92.7% of the class