Velopedia Bicycle Archive

2021 Cannondale Jekyll 1

Original manufacturer specifications including 29 wheels, geometry for 4 published sizes.

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What Velopedia knows

Model year
2021
Category
Mountain
Original MSRP
$6,249.00
Sizes
S, M, L, XL
Colors
Ginger
Geometry
4 manufacturer sizes · Geometry context
Record coverage
22 preserved details · archived image · original MSRP · preserved geometry
Archive ID
900001162
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Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

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

Published sizes

SMLXL

Published colors

Ginger

Frameset

Frame Construction165mm travel, Carbon, Proportional Response Tuned, Guidler idler pulley/chainguide, BSA 73, ISCG05, tapered head tube, Ai Offset
Frame MaterialCarbon fiber
ForkFox Float Factory 38, 170mm, 15x110mm thru-axle, tapered steerer, 44mm offset
Rear ShockFox Float Factory X2, 205x65 Metric Trunnion, Air, Adjustable High Speed/Low Speed Compression, High Speed/Low Speed Rebound

Drivetrain

ShiftersSRAM GX Eagle, 12-speed
Rear DerailleurSRAM GX Lunar Eagle
CranksetSRAM X1 Eagle B148 CL55, 30T
Bottom BracketSRAM DUB BSA MTB73
Rear CogsSRAM XG-1275, GX Eagle, 10-52, 12-speed
ChainSRAM NX Eagle, 12-speed

Brakes

BrakesBrakes SRAM Code RSC hydraulic disc, 220/200mm CenterLine rotors Brake Levers SRAM Code RSC hydraulic disc

Cockpit & Contact Points

HeadsetIntegrated Sealed Bearing, Tapered
HandlebarCannondale 1 Riser, Carbon, 30mm rise, 8° sweep, 5° rise, 780mm
StemFSA Grid 35, 35mm
SaddleFabric Scoop Shallow Elite, hollow cro-mo rails
SeatpostCannondale DownLow Dropper w/ Matchmaker lever, 31.6, 125mm (S), 150mm (M-XL)

Wheels & Tires

Hubs(F) Formula, 15x110mm thru-axle / (R) SRAM MTH 700, 12x148mm, XD Driver
RimsWTB KOM Trail i30 TCS, 32h, tubeless ready
SpokesDT Swiss Factory J -Bend
Front TireMaxxis Assegai, 29x2.5", 3C compound, EXO+ puncture protection, tubeless ready
Rear TireMaxxis Minion DHR II, 29x2.4", EXO+, tubeless ready
Wheel Size29

Size-specific frame data

Geometry

4 sizes · 17 measurements

Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.

MeasurementSMLXL
Seat tube390 mm410 mm445 mm500 mm
Effective top tube569 mm608 mm623 mm660 mm
Top tube541 mm569 mm588 mm627 mm
Head tube100 mm110 mm120 mm130 mm
Head-tube angle64°64°64°64°
Seat-tube angle77.5°77.5°77.5°77.5°
Chainstay / rear center430 mm435 mm442 mm450 mm
Wheelbase1193 mm1227 mm1264 mm1311 mm
Bottom-bracket drop30 mm30 mm30 mm30 mm
Bottom-bracket height348 mm348 mm348 mm348 mm
Reach425 mm450 mm475 mm510 mm
Stack625 mm634 mm643 mm652 mm
Standover height750 mm750 mm760 mm770 mm
Fork offset / rake44 mm44 mm44 mm44 mm
Front center765 mm794 mm823 mm863 mm
Trail135 mm135 mm135 mm135 mm
Wheel size29292929

Geometry source: Human-verified manufacturer geometry image transcription ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.

Geometry tools

Analyze a published size

Choose a size

S geometry

Archive context: Its trail of 135 mm sits toward the higher-trail end. Its wheelbase of 1193 mm sits toward the longer end. The seat angle of 77.5° sits toward the steeper end.

Compared with 86 distinct mountain geometries in the Small-equivalent size cohort from model years 2019–2023 in the Velopedia archive.
Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze S geometry

Parts & serviceability

Find replacement parts

3 top part searches
ChainMatching configuration
SRAM NX Eagle, 12-speed Interpreted as SRAM NX · 12-speed Component family — verify exact version
Cassette / rear cogsExact archived part
SRAM XG-1275, GX Eagle, 10-52, 12-speed Interpreted as SRAM GX · 12-speed Exact archived model
Front tireExact archived part
Maxxis Assegai, 29x2.5", 3C compound, EXO+ puncture protection, tubeless ready Named tire and published size
More qualified parts (6)
Rear tireMatching fit standard
Maxxis Minion DHR II, 29x2.4", EXO+, tubeless ready Named tire and published size
Bottom bracketQualified part search
SRAM DUB BSA MTB73 Named archived component — verify dimensions
SaddleQualified part search
Fabric Scoop Shallow Elite, hollow cro-mo rails Named archived component — verify exact version
CranksetQualified part search
SRAM X1 Eagle B148 CL55, 30T Component family — verify exact version
Rear derailleurMatching configuration
SRAM GX Lunar Eagle Interpreted as SRAM GX · 12-speed Named component · published drivetrain speed — verify exact version Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
ShiftersOne check needed
SRAM GX Eagle, 12-speed Interpreted as SRAM GX · 12-speed Component family — verify exact version Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.

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Used-bike inspection

If you’re buying this bike used

Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.

Follow the full used-bike inspection order →
  • FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.Inspect the frame and fork →
  • BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.Inspect the brakes →
  • SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
  • DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 12-speed system.Check drivetrain wear →
  • Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
Bike-specific inspection checklist 23 checks based on 6 archived component groups Open checklistClose checklist
0 of 23 checked Progress stays in this browser for this bike.

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 Cannondale Jekyll 1 · Mountain · Published sizes: S, M, L, XL

Archived: Frame: 165mm travel, Carbon, Proportional Response Tuned, Guidler idler pulley/chainguide, BSA 73, ISCG05, tapered head tube, Ai Offset · Fork: Fox Float Factory 38, 170mm, 15x110mm thru-axle, tapered steerer, 44mm offset

Archived: Fork: Fox Float Factory 38, 170mm, 15x110mm thru-axle, tapered steerer, 44mm offset · Rear shock: Fox Float Factory X2, 205x65 Metric Trunnion, Air, Adjustable High Speed/Low Speed Compression, High Speed/Low Speed Rebound

Archived: Shifters: SRAM GX Eagle, 12-speed · Rear derailleur: SRAM GX Lunar Eagle · Crankset: SRAM X1 Eagle B148 CL55, 30T · Bottom bracket: SRAM DUB BSA MTB73 · Rear cogs: SRAM XG-1275, GX Eagle, 10-52, 12-speed · Chain: SRAM NX Eagle, 12-speed

Archived: Brakes: Brakes SRAM Code RSC hydraulic disc, 220/200mm CenterLine rotors Brake Levers SRAM Code RSC hydraulic disc

Archived: Wheel size: 29 · Rims: WTB KOM Trail i30 TCS, 32h, tubeless ready · Hubs: (F) Formula, 15x110mm thru-axle / (R) SRAM MTH 700, 12x148mm, XD Driver · Front tire: Maxxis Assegai, 29x2.5", 3C compound, EXO+ puncture protection, tubeless ready · Rear tire: Maxxis Minion DHR II, 29x2.4", EXO+, tubeless ready

Controls and contact points

Archived: Headset: Integrated Sealed Bearing, Tapered · Handlebar: Cannondale 1 Riser, Carbon, 30mm rise, 8° sweep, 5° rise, 780mm · Stem: FSA Grid 35, 35mm · Seatpost: Cannondale DownLow Dropper w/ Matchmaker lever, 31.6, 125mm (S), 150mm (M-XL) · Saddle: Fabric Scoop Shallow Elite, hollow cro-mo rails

Before and during the test ride

Follow the full used-bike inspection order →

Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.

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Recently checked marketplace data

Market Snapshot

Checked Sep 19, 2026 9:48 pm

Velopedia found 1 close used listing. That is not enough to publish a responsible market indication.

Evidence standard Fixed-price and Best Offer item prices only Shipping and tax excluded Active asks, not completed sales

Model-year coverage: 0 of 1 qualifying asking-price listing explicitly state 2021. There are not yet three year-confirmed used listings, so the used summary is labeled as broader model-family context.

Affiliate disclosure: As an eBay Partner, Velopedia may be compensated if you make a purchase through these links.

Qualified asking evidence11 high-confidence match
Model-family used askingInsufficient sample1 close used listing found.
Model-family new askingNo listingsNo close matches in this condition.

See all current matches for this bicycle →

Listings shown have not passed their eBay-supplied end time. Velopedia rechecks matched bicycles on a protected weekly cycle; availability can still change between checks. Price calculations use active fixed-price and Best Offer item prices before shipping and tax. Auction bids, auction-only prices, classified ads, lower-confidence Review candidates and ended listings are excluded. These observations are not completed-sale prices, a certified appraisal or a guarantee of value.

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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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