Kona Blast

Name: Kona Blast
Brand: Kona

2019 MountainCross-country

Last known price: $999

Prices shown first for United States
Fork travel: 100 mm
Wheels: 27.5″
Drivetrain: 1 × 10 28t / 11–42t
Gear range: 382%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 152.4–170.2
MD 157.5–182.9
LG 175.3–195.6
XL 180.3–195.6

Components

21 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 Race Light 6061 Aluminum Butted Not identified

Suspension

2 parts

Fork
- RockShox 30
Rear shock

None

Drivetrain

8 parts

Bottom bracket
- FSA
Cassette
- Shimano Deore 11–42t
Chain
- KMC X10 10 speeds
Chain guide

None
Crankset
- FSA 28t
Front derailleur

None
Rear derailleur
- Shimano Deore
Shifters
- Shimano Deore

Brakes

3 parts

Wheels and tires

5 parts

Front hub
- Formula
Rear hub
- Shimano
Rims
- WTB
Spokes

Sandvik Stainless Black 15g fr / 14g rr Not identified
Tires
- WTB Trail Boss

Cockpit and contact points

7 parts

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

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 427mm

Stack 601mm

Wheelbase 1121mm

Head angle 68.5°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	402	427	451	481
Stackmm	587	601	610	624
Top tube lengthmm	570	599	626	660
Seat tube lengthmm	370	420	470	530
Head tube lengthmm	100	115	125	140
Head tube angle	68.5°	68.5°	68.5°	68.5°
Seat tube angle	74°	74°	74°	74°
Chainstay lengthmm	435	435	435	435
Wheelbasemm	1091	1121	1149	1185
Front centermm	660	691	719	754
Bottom bracket dropmm	50	50	50	50
Bottom bracket heightmm	304	304	304	304
Standover heightmm	715	725	730	750
Fork rakemm	42	42	42	42
Trailmm	95	95	95	94
Stack/reach ratio	1.46	1.41	1.35	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: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 18.3 in
Highest gear: 70.0 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: 2.25″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

3 measures

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

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2019
Sample: 850 bicycles with this information
Coverage: 96.0% of the class

Lowest gear

18.3 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2019
Sample: 799 bicycles with this information
Coverage: 90.2% of the class

Highest gear

70.0 gear inches

This value is below the central range for this class.

Cohort: Mountain / Cross-country Model year: 2019
Sample: 799 bicycles with this information
Coverage: 90.2% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.0 km/h
Highest gear: 26.8 km/h

Total gear range 382%

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: 18.3–70.0 gear inches
Class reference (p10–p90): 16.8–105.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2019
Lowest gear: 799 bicycles with this information, 90.2% of the class
Highest gear: 799 bicycles with this information, 90.2% 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.

Changes since 2018

Changes since 2018
Specification	2018 Kona Blast	This bicycle Kona Blast
Drivetrain
Front chainrings	3	1
Smallest chainring	22	28
Largest chainring	40	28
Rear sprockets	9	10
Largest sprocket	34	42
Lowest gear	17.8 in	18.3 in
Highest gear	100.0 in	70.0 in