Kona Fire Mountain

2010 MountainCross-country

Fork travel: 100 mm
Wheels: 26″
Drivetrain: 3 × 8 24–42t / 11–32t
Gear range: 509%
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

356
40.7cm
45.7cm
50.8cm
55.9cm

The manufacturer did not publish rider heights for these sizes.

Components

17 of 23 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 Butted Aluminum Not identified

Suspension

2 parts

Fork
- RockShox
Rear shock

None

Drivetrain

7 parts

Bottom bracket

TH Not identified
Cassette
- Shimano CS-HG30
CS-HG30
Chain
- KMC
Crankset

42/34/24 Not identified
Front derailleur
- Shimano Acera
Rear derailleur
- Shimano Alivio
Shifters
- Shimano Acera

Brakes

2 parts

Brake levers
- SRAM FR-5
FR-5
Brakes
- Hayes

Wheels and tires

5 parts

Front hub
- Formula
Rear hub
- Shimano FH-M475
FH-M475
Rims

Araya TX 633 Not identified
Spokes

Stainless 14g Not identified
Tires
- Kenda K922
K-922IA-2113

Cockpit and contact points

7 parts

Grips
- Kona
Handlebar
- Kona
Headset
- Ritchey
Pedals

Xerama SP-500 Not identified

SP-500
Saddle
- WTB
Seatpost
- Kona
Stem
- Kona

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 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 5 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	550	563	589	615	640
Seat tube lengthmm	356	407	457	508	559
Head tube lengthmm	90	90	110	150	165
Head tube angle	68.2°	68.1°	68.6°	68.6°	68.7°
Seat tube angle	71.6°	71.7°	71.6°	70.6°	70.2°
Chainstay lengthmm	425	425	425	425	425
Wheelbasemm	1043	1055	1078	1097	1116
Front centermm	619	632	654	672	692
Bottom bracket dropmm	38	38	35	32	32
Bottom bracket heightmm	305	305	308	311	311
Standover heightmm	718	741	775	818	847
Fork rakemm	39	39	39	39	39

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

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 24
Largest chainring: 42
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 19.5 in
Highest gear: 99.3 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 1.95″
Wheel material: Aluminum
Wheel size: 26″

Technical analysis

2 measures

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

Lowest gear

19.5 gear inches

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2010
Sample: 186 bicycles with this information
Coverage: 75.6% of the class

Highest gear

99.3 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2010
Sample: 186 bicycles with this information
Coverage: 75.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.5 km/h
Highest gear: 38.0 km/h

Total gear range 509%

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: 19.5–99.3 gear inches
Class reference (p10–p90): 16.8–116.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2010
Lowest gear: 186 bicycles with this information, 75.6% of the class
Highest gear: 186 bicycles with this information, 75.6% of the class