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Kona Unit

Kona Unit
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Details

If Leonard Smalls were to trade out his beefed-up Honda VT500 and pedal his way across the Arizona desert, we have no doubt it'd be aboard the Unit. Burly. Steel. Hardcore. Mean. Mean? Sure. The Unit does not mess around. Its single-speed design and Cromoly frame make its simplicity shine and keep the moving parts long-lasting for those big excursions. Gear mounts on the fork legs and several options for mounting water bottles mean you won't go without any of the necessary gear no matter where you're traveling.

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 headtubes are a versatile spec which works with both straight and tapered steerers by switching out the lower headset cup. The stock configuration is internal and is for 1 1/8" steerer. Switching to an external lower cup allows for the use of a tapered 1.5" steerer. The best of both worlds.

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.

Geometry

Geometry Chart:
Frame SizeSmallMediumLargeX-Large
Seat Tube Length (mm) 370 420 470 530
Top Tube Length (mm) 582 610 637 675
Reach (mm) 425 450 475 510
Stack (mm) 588 597 606 615
Standover (mm) 695 731 768 810
Head Tube Angle 68° 68° 68° 68°
Head Tube Length (mm) 110 120 130 140
Seat Tube Angle 75° 75° 75° 75°
Chainstay Length (mm) 430 430 430 430
Bottom Bracket Drop (mm) 65 65 65 65
Bottom Bracket Height (mm) 310 310 310 310
Wheelbase (mm) 1115 1144 1173 1211
Front Center (mm) 693 722 750 789
Fork Length (mm) 470 470 470 470
Fork Offset (mm) 50 50 50 50
Sizes:
Frame SizeHeight (inches)Height (cm)Inseam (inches)Inseam (cm)
X-Small 4'10"-5'1" 147-155cm 24"-27" 61-69cm
Small 5'0"-5'3" 152-160cm 26"-29" 66-74cm
Small, Medium 5'2"-5'7" 157-170cm 27"-30" 69-76cm
Medium 5'6"-5'10" 168-178cm 29"-31" 74-79cm
Medium, Large 5'9"-6'0" 175-183cm 30"-33" 76-84cm
Large, X-Large 5'11"-6'2" 180-188cm 32"-35" 81-89cm
Large, X-Large 6'1"-6'5" 185-196cm 33"-36" 84-91cm

Specs

Frame Reynolds 520 Butted Cromoly
Fork Kona Plus fork 110mm spacing
Rims WTB ST i30 TCS 2.0
Hubs Front: Formula 110x15mm
Rear: Formula 148x12mm
Spokes Stainless Black 14g
Tires WTB Ranger TCS 29x2.6"
Bottom Bracket FSA MegaExo 73mm
Crankset FSA Comet Modular
Chainrings 32t
Cassette/Freewheel Joytech 18t
Chain KMC Z1 Narrow
Brakes Tektro HDM275 Hydraulic
Rotors Front: Shimano RT26 180mm
Rear: Shimano RT26 160mm
Brake Levers Tektro HDM275 Hydraulic
Handlebars Kona XC/BC Riser
Tape/Grips Kona Key Grip
Stem Kona XC
Headset TH ZST No.10
Seatpost Kona Thumb w/Offset 31.6mm
Saddle WTB Volt
Pedals Kona JS2

* Subject to change without notice.