Kona Humu

2011 MountainKlunker

Suspension: Rigid
Wheels: 26″
Drivetrain: 1 × 1 42t / 18t
Gear range: 100%
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

40.6cm
45.7cm
50.8cm

The manufacturer did not publish rider heights for these sizes.

Components

15 of 20 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 7005 Aluminum Butted Not identified

Suspension

1 part

Fork
- Kona

Drivetrain

7 parts

Bottom bracket

RPM Not identified
Cassette
- Formula
Chain
- KMC
Crankset

42T/Guard Not identified
Front derailleur

None
Rear derailleur

None
Shifters

None

Brakes

2 parts

Brake levers
- Tektro
Brakes
- Tektro

Wheels and tires

5 parts

Front hub
- Formula
Rear hub
- Formula
Rims
- Alex Rims
Spokes

Stainless 14g Not identified
Tires
- CST

Cockpit and contact points

7 parts

Grips

Velo Not identified
Handlebar
- Kona
Headset
- Ritchey
Pedals
- Wellgo
LU-393
Saddle
- Kona
Seatpost
- Kona
Stem
- Kona

Sizes and geometry

3 sizes Open in the geometry plotter

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

Size 45.7cm

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 3 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	584	610	635
Seat tube lengthmm	406	457	508
Head tube lengthmm	90	130	150
Head tube angle	71°	71°	71°
Seat tube angle	72.5°	72.5°	72.5°
Chainstay lengthmm	430	430	430
Wheelbasemm	1062	1087	1113
Front centermm	633	660	686
Bottom bracket dropmm	47	47	47
Bottom bracket heightmm	296	296	296
Standover heightmm	715	753	800
Fork rakemm	44	44	44

Not published by the manufacturer: Reach, Stack, 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: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 1
Smallest sprocket: 18
Largest sprocket: 18
Lowest gear: 60.7 in
Highest gear: 60.7 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: 2.125″
Wheel material: Aluminum
Wheel size: 26″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 23.2 km/h
Highest gear: 23.2 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: 60.7–60.7 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 2010

Changes since 2010
Specification	2010 Kona Humu	This bicycle Kona Humu
Frame
Frame material	Steel	Aluminum
Fork material	Not informed	Steel
Other specifications
Tire width	2.3″	2.125″
Travel	Configuration: RigidRear: Additional specification: Not available: Yes	Configuration: Rigid