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Kona Unit X - 2021

Kona Unit X
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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.


Frame Reynolds 520 Butted Cromoly
Fork Kona Plus Fork
Headset TH ZST No.10
Rims/Wheels WTB ST i30 TCS 2.0
Tires WTB Ranger TCS 29x2.6"
Crankset SRAM SX Eagle
Bottom Bracket SRAM DUB 73mm
Front Derailleur n/a
Rear Derailleur SRAM SX Eagle 12spd
Shifters SRAM SX Eagle
Brakes SRAM Level T with 180mm front/160mm rear rotor
Drivetrain SRAM SX Eagle 12spd
Cockpit Kona XC/BC Riser Bar/Kona XC/BC Stem with Kona Lock-on Key Grip

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Small 841073140770 B21UNX01 20232391076M
Medium 841073140787 B21UNX03 20232181488D
Large 841073140794 B21UNX05 20232831602G
X-Large 841073140800 B21UNX06 20232342229L