Bicycle Archive · Specification report

2025 Kona Ouroboros

Velopedia Archive ID 900001002

Overview

Model year	2025
Brand	Kona
Model	Ouroboros
Bicycle type	Cyclocross/Gravel
Archive ID	900001002
Original MSRP	$2,099.00
Colors	Gloss Metallic Turismo Olive w/ Porsche Olive Decals
Sizes	48; 50; 52; 54; 56; 58

Frameset

Frame construction	Kona 6061 Aluminum Butted
Frame material	Aluminum
Fork	Suntour GVX32 40mm travel, Tapered, 100x12mm
Rear shock	n/a

Drivetrain

Shifters	Microshift Sword left dropper/brake and right brake/shifter
Front derailleur	n/a
Rear derailleur	Microshift Sword Long Cage w/Clutch
Crankset	Microshift Sword; Chainring: 40t 10sp narrow-wide
Bottom bracket	Prowheel PF86.5
Cassette	Microshift Sword 11-48t 10spd
Chain	KMC X10
Pedals	n/a

Brakes

Brakes	Brake Calipers: TRP Spyre C; Front Brake Rotor: TRP 180mm; Rear Brake Rotor: TRP 180mm; Brake Levers: Microshift Sword

Cockpit & contact points

Headset	FSA No.57B
Handlebar	Kona Gravel 20-degree flare, 48: 440mm; 50: 460mm; 52-54: 480mm; 56: 500mm; 58: 520mm
Stem	Kona Gravel 6-degree rise, 48-52: 50mm; 54-58: 60mm
Saddle	WTB Volt
Seatpost	TranzX Dropper +RAD Internal 31.6mm 125mm travel

Wheels & tires

Hubs	(F) Formula 100x12mm 6-bolt / (R) Formula 142x12mm 6-bolt, standard road 11sp freehub body
Rims	WTB ST I27 TCS 2.0
Spokes	Stainless Black 14g
Front tire	Maxxis Ravager EXO TR 700x50c
Rear tire	Maxxis Ravager EXO TR 700x50c

Geometry · 48

Seat tube	410 mm
Top tube	532 mm
Head tube	116 mm
Head-tube angle	68.7°
Seat-tube angle	74.2°
Chainstay / rear center	445 mm
Wheelbase	1060 mm
Bottom-bracket drop	69 mm
Bottom-bracket height	296 mm
Reach	372 mm
Stack	566 mm
Standover height	725 mm
Fork offset / rake	51 mm
Front center	624 mm
Fork length / axle-to-crown	435 mm

Geometry · 50

Seat tube	410 mm
Top tube	547 mm
Head tube	132 mm
Head-tube angle	68.7°
Seat-tube angle	73.7°
Chainstay / rear center	445 mm
Wheelbase	1071 mm
Bottom-bracket drop	69 mm
Bottom-bracket height	296 mm
Reach	377 mm
Stack	581 mm
Standover height	730 mm
Fork offset / rake	51 mm
Front center	635 mm
Fork length / axle-to-crown	435 mm

Geometry · 52

Seat tube	455 mm
Top tube	559 mm
Head tube	148 mm
Head-tube angle	68.7°
Seat-tube angle	73.2°
Chainstay / rear center	445 mm
Wheelbase	1082 mm
Bottom-bracket drop	69 mm
Bottom-bracket height	296 mm
Reach	382 mm
Stack	598 mm
Standover height	769 mm
Fork offset / rake	51 mm
Front center	646 mm
Fork length / axle-to-crown	435 mm

Geometry · 54

Seat tube	455 mm
Top tube	578 mm
Head tube	172 mm
Head-tube angle	68.7°
Seat-tube angle	72.7°
Chainstay / rear center	445 mm
Wheelbase	1096 mm
Bottom-bracket drop	66 mm
Bottom-bracket height	299 mm
Reach	386 mm
Stack	616 mm
Standover height	777 mm
Fork offset / rake	51 mm
Front center	659 mm
Fork length / axle-to-crown	435 mm

Geometry · 56

Seat tube	500 mm
Top tube	595 mm
Head tube	193 mm
Head-tube angle	68.7°
Seat-tube angle	72.2°
Chainstay / rear center	445 mm
Wheelbase	1108 mm
Bottom-bracket drop	66 mm
Bottom-bracket height	299 mm
Reach	391 mm
Stack	636 mm
Standover height	814 mm
Fork offset / rake	51 mm
Front center	671 mm
Fork length / axle-to-crown	435 mm

Geometry · 58

Seat tube	535 mm
Top tube	616 mm
Head tube	225 mm
Head-tube angle	68.7°
Seat-tube angle	71.7°
Chainstay / rear center	445 mm
Wheelbase	1124 mm
Bottom-bracket drop	66 mm
Bottom-bracket height	299 mm
Reach	396 mm
Stack	666 mm
Standover height	848 mm
Fork offset / rake	51 mm
Front center	687 mm
Fork length / axle-to-crown	435 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 13, 2026.