Velopedia Bicycle Archive

Compare Bicycles

Compare published geometry, gearing and specifications for up to three bicycles.

1 of 2 bicycles

At a glance

Key differences

Supported differences are shown below. Data limitations are labeled separately.

  1. Frame geometry

    2021 Kona Process 153 27.5 has 5 mm more reach than 2019 Kona Process 153 27.5 in the selected sizes.

    More reach puts the head-tube reference farther forward, not necessarily the hands.

  2. Handling

    2021 Kona Process 153 27.5 has a 1.5° slacker head-tube angle than 2019 Kona Process 153 27.5 in the selected sizes.

    Fork offset, tire size and wheelbase also affect steering; head angle alone is not a handling verdict.

  3. Gearing

    2021 Kona Process 153 27.5 has a 16% lower climbing ratio than 2019 Kona Process 153 27.5.

    A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.

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.

2021 Kona Process 153 27.5Size M · 32T · 11–50T · 12-speed
Lowest0.64:1Highest2.91:1Total range455%
Estimated speed at 90 RPMLowest gear4.8 mphHighest gear21.7 mph

Rear tire: 27.5×2.4.

2019 Kona Process 153 27.5Size M · 32T · 11–42T · 11-speed
Lowest0.76:1Highest2.91:1Total range382%
Estimated speed at 90 RPMLowest gear5.6 mphHighest gear21.5 mph

Rear tire: 27.5×2.3.

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.

Try other gearing

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.
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Specification
2021 Kona Process 153 27.5
2019 Kona Process 153 27.5
Overview
Model Year
2021
2019
Brand
Kona
Kona
Model
Process 153 27.5
Process 153 27.5
Bicycle Type
Mountain
Mountain
Original MSRP
$3,199.00
Not documented
Colors
Satin Fatigue Green w/ Gloss Yellow, Nicotine & Flame Fade Decals
Matt Black w/ Gloss Emerald Green & Yellow Decals
Sizes
S, M, L, XL
S, M, L, XL
Weight
—
—
Frameset
Frame Construction
Kona 6061 Aluminum Butted 153mm Travel
Kona 6061 Aluminum Butted 153mm Travel
Frame Material
Aluminum
Aluminum
Fork
RockShox Yari RC Motion Control DebonAir 160mm Tapered 110mm Spacing
RockShox Yari RC Motion Control DebonAir 160mm Tapered 110mm Spacing
Rear Shock
RockShox Deluxe Select Plus Trunnion
RockShox Deluxe RT Trunnion
Drivetrain
Shifters
SRAM SX-Eagle
SRAM NX
Rear Derailleur
SRAM NX-Eagle
SRAM NX
Crankset
SRAM SX-Eagle; Chainring: 32t X-Sync Eagle
SRAM NX; Chainring: 32t X-Sync
Bottom Bracket
SRAM DUB PF92
SRAM GXP PF92
Cassette
SRAM NX-Eagle 11-50t 12spd
SRAM PG1130 11-42t 11spd
Chain
SRAM SX-Eagle
SRAM PC1110
Brakes
Brakes
Brake Calipers: SRAM Guide T; Front Brake Rotor: SRAM Centerline 200mm; Rear Brake Rotor: SRAM Centerline 180mm; Brake Levers: SRAM Guide T
Brake Calipers: SRAM Guide T; Front Brake Rotor: SRAM Centerline 200mm; Rear Brake Rotor: SRAM Centerline 180mm; Brake Levers: SRAM Guide T
Cockpit & Contact Points
Headset
FSA No.57B
FSA No.57B
Handlebar
Kona XC/BC 35
Kona XC/BC 35
Stem
Kona XC/BC 35
Kona XC/BC 35
Saddle
Kona Trail
WTB Volt Comp (Comp 250 size S)
Seatpost
Trans-X Dropper +RAD Internal 31.6mm
Trans-X Dropper Internal 31.6mm
Wheels & Tires
Hubs
(F) Formula 110x15mm / (R) Formula 148x12mm
(F) Formula 110x15mm / (R) Formula 148x12mm
Rims
WTB ST I30 TCS 2.0
WTB ST I29 TCS
Spokes
Stainless Black 14g
Stainless Black 14g
Front Tire
Maxxis Assegai EXO TR DUAL 27.5x2.5" WT
Maxxis Minion DHF EXO TR DUAL 27.5x2.5" WT
Rear Tire
Maxxis Minion DHR II EXO TR DUAL 27.5x2.4" WT
Maxxis Minion DHF EXO TR DUAL 27.5x2.3"
Wheel Size
27.5"
27.5"
Geometry · choose a size for each bicycle
Geometry size
Reach
455 mm
450 mm
Stack
615 mm
607 mm
Head-tube angle
64.5°
66°
Seat-tube angle
76.9°
76°
Seat tube
410 mm
410 mm
Head tube
134 mm
120 mm
Chainstay / rear center
430 mm
425 mm
Wheelbase
1213 mm
1190 mm
Bottom-bracket drop
12 mm
10 mm
Bottom-bracket height
348 mm
345 mm
Standover height
700 mm
715 mm
Fork offset / rake
37 mm
46 mm
Front center
784 mm
765 mm

Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.

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