Velopedia Bicycle Archive
Compare Bicycles
Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
No key difference could be established from the available data. Check the full table for the details.
Selected-size geometry
Geometry overlay
Frames share one scale and a bottom-bracket alignment. Size labels differ by brand; schematic drawing aids are identified below.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Ratio1.78:1
Estimated speed at 90 RPMGear
Rear tire: 27.5×2.8.
Ratio1.78:1
Estimated speed at 90 RPMGear
Rear tire: 27.5×2.8.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
Specification
2017 Kona Unit
2019 Kona Unit
Overview
Model Year
2017
2019
Brand
Kona
Kona
Model
Unit
Unit
Bicycle Type
Mountain
Mountain
Colors
Matt Green/Blue
Matt Eco Green w/ Slate Blue & Dirty Aqua Decals
Sizes
S, M, L, XL
S, M, L, XL
Weight
—
—
Frameset
Frame Construction
Reynolds 520 Butted Cromoly
Reynolds 520 Butted Cromoly
Frame Material
Steel
Steel
Fork
Kona Plus Fork
Kona Plus Fork
Drivetrain
Crankset
FSA Comet Modular; Chainring: 32t
FSA Comet Modular; Chainring: 32t
Bottom Bracket
FSA 7100
FSA 73mm
Cassette
Joytech 18t
Joytech 18t
Chain
KMC Z610
KMC Z1 Narrow
Pedals
Kona JackShit
Kona JS2
Brakes
Brakes
Brake Calipers: TRP Spyke; Front Brake Rotor: Tektro 180mm; Rear Brake Rotor: Tektro 160mm; Brake Levers: Avid FR5
Brake Calipers: Tektro HDM275; Front Brake Rotor: Tektro TR180 180mm; Rear Brake Rotor: Tektro TR160 160mm; Brake Levers: Tektro HDM275
Cockpit & Contact Points
Headset
TH ZST no.10
TH ZST no.10
Handlebar
Kona XC/BC Riser
Kona XC/BC Riser
Stem
Kona XC/BC
Kona XC/BC
Saddle
WTB Volt Comp
WTB Volt Comp (Comp 250 size S)
Seatpost
Kona Thumb w/Offset 27.2mm
Kona Thumb w/Offset 31.6mm
Wheels & Tires
Hubs
(F) Joytech 100x9mm / (R) Joytech 135x10mm
(F) Formula 100x9mm / (R) Formula 135x10mm
Rims
Alex MD40
WTB ST I35 TCS
Spokes
Sandvik Stainless 15g fr / 14g rr
Sandvik Stainless 15g fr / 14g rr
Front Tire
WTB Trailblazer TCS 27.5x2.8"
WTB Ranger TCS 27.5x2.8"
Rear Tire
WTB Trailblazer TCS 27.5x2.8"
WTB Ranger TCS 27.5x2.8"
Wheel Size
27.5"
27.5"
Geometry · choose a size for each bicycle
Geometry size
Reach
429 mm
429 mm
Stack
582 mm
582 mm
Head-tube angle
69°
69°
Seat-tube angle
74°
74°
Seat tube
420 mm
420 mm
Head tube
105 mm
105 mm
Chainstay / rear center
442 mm
442 mm
Wheelbase
1121 mm
1121 mm
Bottom-bracket drop
60 mm
60 mm
Bottom-bracket height
305 mm
300 mm
Standover height
725 mm
720 mm
Fork offset / rake
50 mm
50 mm
Front center
686 mm
686 mm
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.