Velopedia Bicycle Archive

2020 Cannondale Jekyll Carbon 29 2

Original specifications: 29" wheels · geometry for 4 published sizes.

Share owner experience

Selling this bike? Get the spec link and selling options

At a glance

Model year
2020
Category
Mountain
Sizes
S, M, L, XL
Colors
Cashmere (CAS)
Geometry
4 manufacturer sizes
In this record
23 specifications · archived image · geometry
Archive ID
900003035
Campaign
Original buildCarbon · 29"

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

Cashmere (CAS)

Frameset

Frame ConstructionBallisTec Carbon front triangle, SmartForm C1 Alloy swingarm, 150mm travel, Ai offset drivetrain, ISCG05, PF30-83, flat mount brake, tapered headtube
Frame MaterialCarbon
ForkFox Float Performance 36, 150mm, Grip2 Damper, 3-Pos adj., 15x110, tapered steerer, 42mm offset
Rear ShockFox Float Factory DPX2 EVOL w/ Gemini dual mode air spring system (Flow Mode - 150mm / Hustle Mode - 120mm, Remote Activated) 3-Pos adj.

Drivetrain

ShiftersSRAM GX Eagle, 12-speed
Rear DerailleurSRAM X01 Eagle
CranksetTruvativ Stylo 7K DUB, 30T, Ai offset
Bottom BracketSRAM DUB PF30 MTB83
Rear CogsSRAM XG-1275, GX Eagle, 10-50, 12-speed
ChainSRAM GX Eagle, 12-speed
PedalsNot Included

Brakes

BrakesSRAM Code R hydro disc, 200/180mm Centerline rotors

Cockpit & Contact Points

HeadsetIntegrated, 1-1/8 to 1.5”, sealed angular contact bearings
HandlebarCannondale 3 Riser, 6061 Alloy, 15mm rise, 8° sweep, 4° rise, 780mm
StemCannondale 1, 3D Forged 6061 Alloy, 1-1/8”, 31.8, 0°
SaddleFabric Scoop Shallow Elite, cro-mo rails
SeatpostCannondale DownLow Dropper, internal routing, 31.6, 125mm (S), 150mm (M-XL)

Wheels & Tires

HubsFormula 15x110 SRAM 900 12x148 w/ XD driver
RimsStan’s NoTubes Flow MK3, 32h, tubeless ready
SpokesDT Swiss Champion
Front TireMaxxis Assegai, 29 x 2.5”, 3C Compound, Max EXO puncture protection, tubeless ready
Rear TireMaxxis Assegai, 29 x 2.5”, 3C Compound, Max EXO puncture protection, tubeless ready
Wheel Size29"

Geometry

4 sizes · 16 measurements

Frame measurements by size.

All geometry measurements4 sizes · 16 measurements
MeasurementSMMDLGXL
Seat tube400 mm430 mm460 mm520 mm
Effective top tube586 mm611 mm636 mm664 mm
Top tube568 mm589 mm613 mm641 mm
Head tube102 mm115 mm127 mm140 mm
Head-tube angle65°65°65°65°
Seat-tube angle75°75°75°75°
Chainstay / rear center442 mm442 mm442 mm442 mm
Wheelbase1179 mm1207 mm1234 mm1264 mm
Bottom-bracket drop16 mm16 mm16 mm16 mm
Bottom-bracket height360 mm360 mm360 mm360 mm
Reach419 mm440 mm462 mm487 mm
Stack598 mm610 mm621 mm633 mm
Standover height760 mm766 mm776 mm788 mm
Fork offset / rake42 mm42 mm42 mm42 mm
Front center738 mm765 mm792 mm823 mm
Trail130 mm130 mm130 mm130 mm

Dimensions as recorded.

Gearing

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

All published sizes30T · 10–50T · 12-speed
Lowest0.60:1 Highest3.00:1 Total range500%

Speed unavailable: wheel or tire size is missing or unclear.

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

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
SRAM GX Eagle, 12-speed Search: SRAM GX Eagle, 12-speed chain
Retailer offers · Affiliate links
Cassette / rear cogs · Original
SRAM XG-1275, GX Eagle, 10-50, 12-speed Search: SRAM XG-1275 12-speed 10-50 cassette
Retailer offers · Affiliate links
Front tire · Original
Maxxis Assegai, 29 x 2.5”, 3C Compound, Max EXO puncture protection, tubeless ready
Retailer offers · Affiliate links
More parts (5)
Bottom bracket · Original
SRAM DUB PF30 MTB83
Saddle · Original
Fabric Scoop Shallow Elite, cro-mo rails
Rear derailleur · Original
SRAM X01 Eagle Search: SRAM X01 12-speed rear derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Retailer offers · Affiliate links
Shifters · Original
SRAM GX Eagle, 12-speed Search: SRAM GX Eagle, 12-speed shifter Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Seatpost · Original
Cannondale DownLow Dropper, internal routing, 31.6, 125mm (S), 150mm (M-XL)

Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. 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.

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: 2020 Cannondale Jekyll Carbon 29 2 · Mountain · Published sizes: S, M, L, XL

Archived: Frame: BallisTec Carbon front triangle, SmartForm C1 Alloy swingarm, 150mm travel, Ai offset drivetrain, ISCG05, PF30-83, flat mount brake, tapered headtube · Fork: Fox Float Performance 36, 150mm, Grip2 Damper, 3-Pos adj., 15x110, tapered steerer, 42mm offset

Archived: Fork: Fox Float Performance 36, 150mm, Grip2 Damper, 3-Pos adj., 15x110, tapered steerer, 42mm offset · Rear shock: Fox Float Factory DPX2 EVOL w/ Gemini dual mode air spring system (Flow Mode - 150mm / Hustle Mode - 120mm, Remote Activated) 3-Pos adj.

Archived: Shifters: SRAM GX Eagle, 12-speed · Rear derailleur: SRAM X01 Eagle · Crankset: Truvativ Stylo 7K DUB, 30T, Ai offset · Bottom bracket: SRAM DUB PF30 MTB83 · Rear cogs: SRAM XG-1275, GX Eagle, 10-50, 12-speed · Chain: SRAM GX Eagle, 12-speed

Archived: Brakes: SRAM Code R hydro disc, 200/180mm Centerline rotors

Archived: Wheel size: 29" · Rims: Stan’s NoTubes Flow MK3, 32h, tubeless ready · Hubs: Formula 15x110 SRAM 900 12x148 w/ XD driver · Front tire: Maxxis Assegai, 29 x 2.5”, 3C Compound, Max EXO puncture protection, tubeless ready · Rear tire: Maxxis Assegai, 29 x 2.5”, 3C Compound, Max EXO puncture protection, tubeless ready

Controls and contact points

Archived: Headset: Integrated, 1-1/8 to 1.5”, sealed angular contact bearings · Handlebar: Cannondale 3 Riser, 6061 Alloy, 15mm rise, 8° sweep, 4° rise, 780mm · Stem: Cannondale 1, 3D Forged 6061 Alloy, 1-1/8”, 31.8, 0° · Seatpost: Cannondale DownLow Dropper, internal routing, 31.6, 125mm (S), 150mm (M-XL) · Saddle: Fabric Scoop Shallow Elite, cro-mo rails · Pedals: Not Included

Before and during the test ride

Follow the full used-bike inspection order →

My Garage

Velopedia

Enter your email and Velopedia will send a private sign-in link. No password required.

Have you owned this bike?Help preserve its real-world history by sharing your owner experience.

Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.

Add fit, maintenance and buyer detailsOptional · five additional fields

Your contribution goes directly to Velopedia’s private review queue. We’ll email an optional confirmation link plus a private edit and withdrawal link, but you do not need to confirm your email before an administrator can review or approve the submission.

Already contributed? Send me a fresh private edit link

For privacy, Velopedia shows the same confirmation whether or not an experience exists.

Checking current listings…

Campaign

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

Scroll to Top