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.
Lowest0.63:1Highest3.20:1Total range510%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 29×2.6.
Lowest0.64:1Highest2.91:1Total range455%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 29×2.6.
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
2025 Kona Unit X
2020 Kona Unit X
Overview
Model Year
2025
2020
Brand
Kona
Kona
Model
Unit X
Unit X
Bicycle Type
Mountain
Mountain
Original MSRP
$1,799.00
Not documented
Colors
Gloss Metallic Gold w/ Black & Concrete Decals
Gloss Champagne w/ Black & Dark Silver 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
Fork
Kona Plus Fork 110mm spacing
Kona Plus Fork 110mm spacing
Drivetrain
Shifters
Shimano Deore 12spd
SRAM SX-Eagle
Rear Derailleur
Shimano Deore
SRAM SX-Eagle
Crankset
Shimano Deore 12spd; Chainring: 32t
SRAM SX-Eagle; Chainring: 32t X-Sync Eagle
Bottom Bracket
Shimano 73mm
SRAM Power Spline 73mm
Cassette
Shimano Deore 10-51t 12spd
SRAM SX-Eagle 11-50t 12spd
Chain
Shimano Deore 12spd
SRAM SX-Eagle
Pedals
—
Kona JS2
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
Brake Calipers: SRAM Level T; Front Brake Rotor: SRAM Centerline 180mm; Rear Brake Rotor: SRAM Centerline 160mm; Brake Levers: SRAM Level T
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
WTB Volt Sport (Sport 250 size S)
Seatpost
Kona Thumb w/Offset 31.6mm
Kona Thumb w/Offset 31.6mm
Wheels & Tires
Hubs
(F) Formula 110x15mm (centerlock) / (R) Shimano 148x12mm (centerlock)
(F) Formula 110x15mm / (R) Formula 148x12mm
Rims
WTB ST I30 2.0 TCS
WTB ST I30 2.0 TCS
Spokes
Stainless Black 14g
Stainless Black 14g
Front Tire
Maxxis Rekon TR 29x2.6" or WTB Ranger TCS 29x2.6"
WTB Ranger TCS 29x2.6"
Rear Tire
Maxxis Rekon TR 29x2.6" or WTB Ranger TCS 29x2.6"
WTB Ranger TCS 29x2.6"
Wheel Size
29"
29"
Geometry · choose a size for each bicycle
Geometry size
Reach
450 mm
450 mm
Stack
597 mm
597 mm
Head-tube angle
68°
68°
Seat-tube angle
75°
75°
Seat tube
420 mm
420 mm
Head tube
120 mm
120 mm
Chainstay / rear center
430 mm
430 mm
Wheelbase
1144 mm
1144 mm
Bottom-bracket drop
65 mm
65 mm
Bottom-bracket height
310 mm
310 mm
Standover height
731 mm
731 mm
Fork offset / rake
50 mm
50 mm
Front center
722 mm
722 mm
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.