Velopedia Bicycle Archive

2021 Kona Operator CR

Original specifications: 29" wheels.

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At a glance

Archive #900002028
Model year
2021
Category
Mountain
Original MSRP
$5,199.00
Sizes
M, L
Colors
Gloss Dark Green & Metallic Green w/ Slime, Black & Dark Green Decals
In this record
22 specifications · archived image · original MSRP
Model history 1 other year

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Identification clues

2021 archived details

Published colors
Gloss Dark Green & Metallic Green w/ Slime, Black & Dark Green Decals
Frame
Carbon Fiber

Clues, not proof of model year. Colors vary and components may have been replaced.

Campaign
Original buildCarbon Fiber · 29"

Manufacturer catalog

Published sizes and colors

2 sizes · 2 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

ML

Published colors

Gloss Dark Green & Metallic Green w/ SlimeBlack & Dark Green Decals

Frameset

Frame ConstructionKona DH Carbon w/ 6061 Aluminum Chain Stays 195mm Travel (205mm in 27.5)
Frame MaterialCarbon Fiber
ForkRockShox Boxxer Ultimate DebonAir 190mm
Rear ShockRockShox Super Deluxe Coil Ultimate Trunnion

Drivetrain

ShiftersSRAM GX DH
Rear DerailleurSRAM GX DH
CranksetSRAM Descendant DH; Chainring: 34t
Bottom BracketSRAM DUB PF107
CassetteSRAM PG720 11-25t 7spd
ChainSRAM PC1110

Brakes

BrakesBrake Calipers: SRAM Code R; Front Brake Rotor: SRAM Centerline 200mm; Rear Brake Rotor: SRAM Centerline 200mm; Brake Levers: SRAM Code R

Cockpit & Contact Points

HeadsetFSA Orbit C No.8 ACB
HandlebarRaceFace Atlas 35mm
StemRaceFace Atlas DM 35mm
SaddleWTB High Tail Trail
SeatpostKona OB 31.6mm

Wheels & Tires

Hubs(F) Formula 110x20mm / (R) Formula 157x12mm
RimsWTB HTZ I30 TCS 2.0
SpokesStainless Black 14g
Front TireMaxxis Assegai DH TR 3C 29x2.5" WT
Rear TireMaxxis Assegai DH TR 3C 29x2.5" WT
Wheel Size29"

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes34T · 11–25T · 7-speed
Lowest1.36:1 Highest3.09:1 Total range227%
Estimated speed At 90 RPM Lowest gear10.7 mph Highest gear24.4 mph

Rear tire: 29×2.5.

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

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Front tire · Original
Maxxis Assegai DH TR 3C 29x2.5" WT
Retailer offers
Seatpost · Original
Kona OB 31.6mm
Retailer offers
Cassette · Original
SRAM PG720 11-25t 7spd
More parts (7)Fewer parts
Bottom bracket · Original
SRAM DUB PF107
Saddle · Original
WTB High Tail Trail
Crankset · Original
SRAM Descendant DH

Chainring: 34t

Handlebar · Original
RaceFace Atlas 35mm
Stem · Original
RaceFace Atlas DM 35mm
Headset · Original
FSA Orbit C No.8 ACB
Rims · Original
WTB HTZ i30 TCS 2.0

Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.

Service essentialsQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
Maxxis Assegai DH TR 3C 29x2.5" WTCheck: Verify the fitted tire’s size marking and rim type.
Rear tire
Maxxis Assegai DH TR 3C 29x2.5" WTCheck: Verify the rear size; it may differ from the front.
Drivetrain
7-speedCheck: Match the installed drivetrain family, not just its speed count.
Seatpost diameter
31.6 mmCheck: Read the post’s diameter marking; seat-clamp size differs.
Bottom bracket / shell
SRAM DUB PF107Check: Verify shell type and width, crank interface, and spindle length or spacers.
Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
0 of 22 checked Progress stays in this browser for this record.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2021 Kona Operator CR · Mountain · Published sizes: M, L

Archived: Frame: Kona DH Carbon w/ 6061 Aluminum Chain Stays 195mm Travel (205mm in 27.5) · Fork: RockShox Boxxer Ultimate DebonAir 190mm

Archived: Fork: RockShox Boxxer Ultimate DebonAir 190mm · Rear shock: RockShox Super Deluxe Coil Ultimate Trunnion

Archived: Shifters: SRAM GX DH · Rear derailleur: SRAM GX DH · Crankset: SRAM Descendant DH; Chainring: 34t · Bottom bracket: SRAM DUB PF107 · Cassette: SRAM PG720 11-25t 7spd · Chain: SRAM PC1110

Archived: Brakes: Brake Calipers: SRAM Code R; Front Brake Rotor: SRAM Centerline 200mm; Rear Brake Rotor: SRAM Centerline 200mm; Brake Levers: SRAM Code R

Archived: Wheel size: 29" · Rims: WTB HTZ i30 TCS 2.0 · Hubs: (F) Formula 110x20mm / (R) Formula 157x12mm · Front tire: Maxxis Assegai DH TR 3C 29x2.5" WT · Rear tire: Maxxis Assegai DH TR 3C 29x2.5" WT

Controls and contact points

Archived: Headset: FSA Orbit C No.8 ACB · Handlebar: RaceFace Atlas 35mm · Stem: RaceFace Atlas DM 35mm · Seatpost: Kona OB 31.6mm · Saddle: WTB High Tail Trail

Before and during the test ride

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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