Used · Fixed price · USD 3000.00
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
Frameset
| Frame Construction | 165mm travel, Carbon, Proportional Response Tuned, Guidler idler pulley/chainguide, BSA 73, ISCG05, tapered head tube, Ai Offset |
|---|---|
| Frame Material | Carbon fiber |
| 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 |
Drivetrain
| 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 |
Brakes
| Brakes | Brakes SRAM Code RSC hydraulic disc, 220/200mm CenterLine rotors Brake Levers SRAM Code RSC hydraulic disc |
|---|
Cockpit & Contact Points
| Headset | Integrated Sealed Bearing, Tapered |
|---|---|
| Handlebar | Cannondale 1 Riser, Carbon, 30mm rise, 8° sweep, 5° rise, 780mm |
| Stem | FSA Grid 35, 35mm |
| Saddle | Fabric Scoop Shallow Elite, hollow cro-mo rails |
| Seatpost | Cannondale 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 |
|---|---|
| Rims | WTB KOM Trail i30 TCS, 32h, tubeless ready |
| Spokes | DT Swiss Factory J -Bend |
| Front Tire | Maxxis Assegai, 29x2.5", 3C compound, EXO+ puncture protection, tubeless ready |
| Rear Tire | Maxxis Minion DHR II, 29x2.4", EXO+, tubeless ready |
| Wheel Size | 29 |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Seat tube | 390 mm | 410 mm | 445 mm | 500 mm |
| Effective top tube | 569 mm | 608 mm | 623 mm | 660 mm |
| Top tube | 541 mm | 569 mm | 588 mm | 627 mm |
| Head tube | 100 mm | 110 mm | 120 mm | 130 mm |
| Head-tube angle | 64° | 64° | 64° | 64° |
| Seat-tube angle | 77.5° | 77.5° | 77.5° | 77.5° |
| Chainstay / rear center | 430 mm | 435 mm | 442 mm | 450 mm |
| Wheelbase | 1193 mm | 1227 mm | 1264 mm | 1311 mm |
| Bottom-bracket drop | 30 mm | 30 mm | 30 mm | 30 mm |
| Bottom-bracket height | 348 mm | 348 mm | 348 mm | 348 mm |
| Reach | 425 mm | 450 mm | 475 mm | 510 mm |
| Stack | 625 mm | 634 mm | 643 mm | 652 mm |
| Standover height | 750 mm | 750 mm | 760 mm | 770 mm |
| Fork offset / rake | 44 mm | 44 mm | 44 mm | 44 mm |
| Front center | 765 mm | 794 mm | 823 mm | 863 mm |
| Trail | 135 mm | 135 mm | 135 mm | 135 mm |
| Wheel size | 29 | 29 | 29 | 29 |
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
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.M geometry
Archive context: Its stack of 634 mm sits toward the taller end. Its trail of 135 mm sits toward the higher-trail end. Its wheelbase of 1227 mm sits toward the longer end.
Compared with 86 distinct mountain geometries in the Medium-equivalent size cohort from model years 2019–2023 in the Velopedia archive.L geometry
Archive context: Its wheelbase of 1264 mm sits toward the longer end. Its stack of 643 mm sits toward the taller end. The seat angle of 77.5° sits toward the steeper end.
Compared with 79 distinct mountain geometries in the Large-equivalent size cohort from model years 2019–2023 in the Velopedia archive.XL geometry
Archive context: Its wheelbase of 1311 mm sits toward the longer end. The chainstay of 450 mm sits toward the longer rear-center end. The seat angle of 77.5° sits toward the steeper end.
Compared with 71 distinct mountain geometries in the XL-equivalent size cohort from model years 2019–2023 in the Velopedia archive.Parts & serviceability
Find replacement parts
More qualified parts (6)
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.
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
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.
Identity and fit
Follow the full used-bike inspection order →Archived: 2021 Cannondale Jekyll 1 · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →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
Suspension
Evaluate the suspension →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
Drivetrain
Check drivetrain wear →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
Brakes
Inspect the brakes →Archived: Brakes: Brakes SRAM Code RSC hydraulic disc, 220/200mm CenterLine rotors Brake Levers SRAM Code RSC hydraulic disc
Wheels and tires
Check wheels and tires →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
Velopedia found 1 close used listing. That is not enough to publish a responsible market indication.
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.
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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.
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.






