Kona

2021 Kona Unit X

Previous used estimate

$588 - $605

Actual value depends on condition, size, and local demand.

2021 Kona Unit X

Value Guide market data · 2021 Kona Unit X

12-month projected trend

12%

Direction and magnitude, not judgment

vs. category average

5%

Drops faster than category avg

Price over time - 2021 Kona Unit X

$1.5k$847$194MSRPMSRPYr 1Yr 2Yr 3Yr 4Yr 5Yr 6Yr 7Yr 7Yr 8Yr 9Yr 10Yr 11Yr 12Yr 13Yr 14Yr 14Yr 15Yr 16Yr 17Yr 18Yr 19Yr 20Yr 20

Values based on actual sales data. Enter your bike's specifics to get a precise valuation.

All Unit model years

Overview

About this bike

The Unit X has become a cult favorite among die-hard Kona fans. Maybe it’s the Cromoly frame. Maybe it’s the fact that it’s a bikepacking monster, or its SRAM SX Eagle 12-speed drivetrain, or modular dropouts which give you the ability to run it as a single speed if that’s your thing. Maybe it’s because the rigid fork makes it that much more of a classic. We may never know why the Unit X is such a popular bike, but we can only guess it’s because it is one of the most practical machines in our lineup. Reynolds 520 Cromoly Reynolds 520 tubes are mandrel-butted for accurate profiles and available in a wide range of shapes. Weight savings from butting provides competitively priced, light framesets that are noticeably compliant on the road or the trail, and are guaranteed to last a lifetime. Internal Headset Bearing cups are actually pressed into the frame and are easily removable. An internal headset also reduces stack height, so the height of the stem and bars are more adjustable, giving the rider the best fit possible. 44mm Head Tube 44mm oversized heatubes allow us to run tapered steerer forks by using a large external lower cup headset bearing. The larger diameter steerer tube adds considerable stiffness and will increase responsiveness to the front end, improving all-around performance. Tubeless Compatible Rims Tubeless rims allow for tires with more puncture resistance; the ability to run lower tire pressure, which provides better tire grip on the trail; lower rolling resistance; and weight savings over traditional tube and tire systems. 12x148mm Axle 12x142mm, 12x148, and 12x157 rear axle standards provide two major advantages to the Kona rider: the 12mm diameter of the rear axle provides the rear hub and frame with a stiff interface, while the 142/148/157mm outer diameter of the hub allows the wheel to be quickly and properly positioned in the frame before the rear axle is inserted.

Specifications

Subtype
Cross Country
Category
Mountain
Component Fork
Kona Plus fork 110mm spacing
Component Hubs
Formula
Component Size
Small, Medium, Large, X-Large
Component Stem
Kona XC/BC
Product Family
Unit
Component Axles
Front: 110 x 15mm thru-axle Rear: 148 x 12mm thru-axle
Component Chain
SRAM SX-Eagle
Component Color
Gloss Metallic Rust
Component Frame
Reynolds 520 Butted Cromoly
Component Brakes
SRAM Level T w/SRAM Centerline 180/160mm rotors
Component Pedals
Kona JS2
Component Saddle
WTB Volt
Component Headset
TH ZST No.10
Component Cassette
SRAM SX-Eagle 11-50t 12spd
Component Crankset
SRAM SX-Eagle
Component Shifters
SRAM SX-Eagle
Component Handlebar
Kona XC/BC Riser
Component Seat Post
Kona Thumb w/Offset 31.6mm
Component Chainrings
32t X-Sync Eagle
Component Front Tire
WTB Ranger TCS 29 x 2.6"
Component Tape Grips
Kona Key Grip
Component Brake Levers
SRAM Level T
Component Bottom Bracket
SRAM DUB 73mm
Component Rear Derailleur
SRAM SX-Eagle
Hubs
Formula
Crankset
SRAM SX-Eagle
Pedals
Kona JS2
Bottom Bracket
SRAM DUB 73mm
Chain
SRAM SX-Eagle
Saddle
WTB Volt
Handlebar
Kona XC/BC Riser
Headset
TH ZST No.10
Rear Derailleur
SRAM SX-Eagle
Stem
Kona XC/BC
Axles
Front: 110 x 15mm thru-axle Rear: 148 x 12mm thru-axle
Brake Levers
SRAM Level T
Brakes
SRAM Level T w/SRAM Centerline 180/160mm rotors
Cassette
SRAM SX-Eagle 11-50t 12spd
Chainrings
32t X-Sync Eagle
Fork
Kona Plus fork 110mm spacing
Frame
Reynolds 520 Butted Cromoly
Seat Post
Kona Thumb w/Offset 31.6mm
Shifters
SRAM SX-Eagle
Tape/Grips
Kona Key Grip
Color
Gloss Metallic Rust
Size
X-Large
Front Tire
WTB Ranger TCS 29 x 2.6"

What to check when buying used

Inspection

Frame condition

Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.

Inspection

Drivetrain wear

Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.

Inspection

Service history

Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.

Inspection

Suspension service

Confirm fork and rear shock service intervals and check pivot bearings for play.

Shop Our Inventory