Bicycle Archive · Specification report

2025 Kona Unit X

Velopedia Archive ID 900001150

Overview

Model year	2025
Brand	Kona
Model	Unit X
Bicycle type	Mountain
Archive ID	900001150
Original MSRP	$1,799.00
Colors	Gloss Metallic Gold w/ Black & Concrete Decals
Sizes	SM; MD; LG; XL

Frameset

Frame construction	Reynolds 520 Butted Cromoly
Fork	Kona Plus Fork 110mm spacing
Rear shock	n/a

Drivetrain

Shifters	Shimano Deore 12spd
Front derailleur	n/a
Rear derailleur	Shimano Deore
Crankset	Shimano Deore 12spd; Chainring: 32t
Bottom bracket	Shimano 73mm
Cassette	Shimano Deore 10-51t 12spd
Chain	Shimano Deore 12spd
Pedals	n/a

Brakes

Brakes	Brake Calipers: Shimano MT410 Hydraulic; Front Brake Rotor: Shimano RT10 180mm (centerlock); Rear Brake Rotor: Shimano RT10 160mm (centerlock); Brake Levers: Shimano MT410 Hydraulic

Cockpit & contact points

Headset	TH ZST no.10
Handlebar	Kona XC/BC Riser
Stem	Kona XC/BC
Saddle	WTB Volt
Seatpost	Kona Thumb w/Offset 31.6mm

Wheels & tires

Hubs	(F) Formula 110x15mm (centerlock) / (R) Shimano 148x12mm (centerlock)
Rims	WTB ST I30 2.0 TCS
Spokes	Stainless Black 14g
Front tire	Maxxis Rekon TR 29x2.6" or WTB Ranger TCS 29x2.6"
Rear tire	Maxxis Rekon TR 29x2.6" or WTB Ranger TCS 29x2.6"
Wheel size	29"

Geometry · S

Seat tube	370 mm
Top tube	582 mm
Head tube	110 mm
Head-tube angle	68°
Seat-tube angle	75°
Chainstay / rear center	430 mm
Wheelbase	1115 mm
Bottom-bracket drop	65 mm
Bottom-bracket height	310 mm
Reach	425 mm
Stack	588 mm
Standover height	695 mm
Fork offset / rake	50 mm
Front center	693 mm
Fork length / axle-to-crown	470 mm

Geometry · M

Seat tube	420 mm
Top tube	610 mm
Head tube	120 mm
Head-tube angle	68°
Seat-tube angle	75°
Chainstay / rear center	430 mm
Wheelbase	1144 mm
Bottom-bracket drop	65 mm
Bottom-bracket height	310 mm
Reach	450 mm
Stack	597 mm
Standover height	731 mm
Fork offset / rake	50 mm
Front center	722 mm
Fork length / axle-to-crown	470 mm

Geometry · L

Seat tube	470 mm
Top tube	637 mm
Head tube	130 mm
Head-tube angle	68°
Seat-tube angle	75°
Chainstay / rear center	430 mm
Wheelbase	1173 mm
Bottom-bracket drop	65 mm
Bottom-bracket height	310 mm
Reach	475 mm
Stack	606 mm
Standover height	768 mm
Fork offset / rake	50 mm
Front center	750 mm
Fork length / axle-to-crown	470 mm

Geometry · XL

Seat tube	530 mm
Top tube	675 mm
Head tube	140 mm
Head-tube angle	68°
Seat-tube angle	75°
Chainstay / rear center	430 mm
Wheelbase	1211 mm
Bottom-bracket drop	65 mm
Bottom-bracket height	310 mm
Reach	510 mm
Stack	615 mm
Standover height	810 mm
Fork offset / rake	50 mm
Front center	789 mm
Fork length / axle-to-crown	470 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 14, 2026.