Kona Precept 120

Name: Kona Precept 120
Brand: Kona

2017 YouthGeneral youth

Last known price: $1,499

Prices shown first for United States
Travel: 120 / 120 mm Fork / rear shock
Wheels: 27.5″
Drivetrain: 3 × 9 22–44t / 11–34t
Gear range: 618%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

21 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 6061 Aluminum Butted 120mm travel Not identified

Suspension

2 parts

Fork
- RockShox 30
Rear shock

Fastrax R Not identified

Drivetrain

8 parts

Bottom bracket
- Shimano
Cassette
- Shimano 11–34t
Chain
- KMC
Chain guide

None
Crankset

22/32/44t Not identified
Front derailleur
- Shimano SLX
Rear derailleur
- Shimano Deore
Shifters
- Shimano Altus

Brakes

3 parts

Wheels and tires

5 parts

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

Sandvik Stainless Black 14g Not identified
Tires
- Maxxis Ardent

Cockpit and contact points

7 parts

Grips
- Kona
Handlebar
- Kona
Headset
- FSA
Pedals
- Wellgo
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 435mm

Stack 605mm

Wheelbase 1145mm

Head angle 68.0°

Seat angle 75.5°

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	416	435	460	485
Stackmm	596	605	610	619
Top tube lengthmm	569	593	620	650
Seat tube lengthmm	396	415	440	465
Head tube lengthmm	115	125	130	140
Head tube angle	68°	68°	68°	68°
Seat tube angle	75.5°	75.5°	75.5°	75°
Chainstay lengthmm	425	425	425	425
Wheelbasemm	1122	1145	1172	1200
Front centermm	697	720	747	776
Bottom bracket dropmm	12	12	12	12
Bottom bracket heightmm	343	343	343	343
Standover heightmm	765	765	765	765
Fork rakemm	42	42	42	42
Stack/reach ratio	1.43	1.39	1.33	1.28

Not published by the manufacturer: Trail, 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: 120 mm
Rear travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 22
Largest chainring: 44
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 17.8 in
Highest gear: 110.0 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

2 measures

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

Lowest gear

17.8 gear inches

This value is below the central range for this class.

Cohort: Youth / General youth Model year: 2017
Sample: 120 bicycles with this information
Coverage: 77.4% of the class

Highest gear

110.0 gear inches

This value is above the central range for this class.

Cohort: Youth / General youth Model year: 2017
Sample: 120 bicycles with this information
Coverage: 77.4% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.8 km/h
Highest gear: 42.1 km/h

Total gear range 618%

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: 17.8–110.0 gear inches
Class reference (p10–p90): 17.9–91.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / General youth Model year: 2017
Lowest gear: 120 bicycles with this information, 77.4% of the class
Highest gear: 120 bicycles with this information, 77.4% 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.

Differences across 2017 builds
Specification	This bicycle Kona Precept 120	Kona Precept 130	Kona Precept 150
Suspension
Front travel	120 mm	140 mm	150 mm
Rear travel	120 mm	130 mm	150 mm
Drivetrain
Front chainrings	3	2	1
Smallest chainring	22	26	30
Largest chainring	44	36	30
Rear sprockets	9	10	11
Largest sprocket	34	36	42
Lowest gear	17.8 in	19.9 in	19.6 in
Highest gear	110.0 in	90.0 in	75.0 in
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost
Other specifications
Tire width	2.25″	2.25″	2.4″