Cannondale Jekyll 1

The Cannondale Jekyll 1 is an enduro race weapon that was born for the downs. Designed for riders who want to wring every ounce of velocity out of steep, chunky, and intimidating descents, the Jekyll combines innovative suspension design with top-tier components to create a bike that grips, floats, and flat-out hauls.

At the core of the Jekyll 1 is a cutting-edge carbon frame featuring a high-pivot suspension design, a Guidler idler pulley, and the unique Gravity Cavity—which tucks the Fox Float Factory X2 shock into the downtube for an incredibly low center of gravity. This translates to wicked stability and instant line changes. Up front, a massive 170mm Fox Float Factory 38 fork eats up the roughest terrain, while the high main pivot gives the rear wheel a bump-swallowing rearward axle path. Outfitted with a reliable SRAM GX Eagle 12-speed drivetrain, ultra-powerful SRAM Code RSC 4-piston brakes with massive rotors, and high-traction Maxxis rubber, the Jekyll 1 is always up for getting down.

Key Features:

• Innovative High-Pivot Suspension: The 4-bar linkage meets a high main pivot for a rearward axle path that effortlessly absorbs square-edge hits and maintains momentum through technical rock gardens.

• The "Guidler" Idler Pulley: By routing the chain through an idler pulley, Cannondale eliminates the pedal kickback commonly associated with high-pivot designs, ensuring your pedal stroke remains smooth over rough terrain.

• Gravity Cavity Design: The rear shock is tucked low into a twin-spar downtube, dropping the bike's center of gravity for unmatched high-speed stability and planted cornering.

• Proportional Response Geometry: Every size of the Jekyll features size-specific suspension kinematics and chainstay lengths, meaning a perfectly balanced, custom-tailored ride feel whether you are on a Small or an X-Large.

• Fox Factory Suspension: Equipped with top-of-the-line, Kashima-coated Fox suspension, including a 170mm Factory 38 fork and a Factory X2 shock for maximum tuneability and buttery-smooth travel.

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Technical Specifications

Component	Specification
Frame	Jekyll Carbon, 165mm travel, Proportional Response Tuned, Guidler idler pulley/chainguide, Gravity Cavity, BSA 73, ISCG05, Ai Offset
Fork	Fox Float Factory 38, 170mm travel, 15x110mm thru-axle, tapered steerer, 44mm offset
Rear Shock	Fox Float Factory X2, 205x65 Metric Trunnion, Air, Adjustable HSC/LSC, HSR/LSR
Rims	WTB KOM Trail i30 TCS, 32h, tubeless ready
Front Hub	Formula, 15x110mm thru-axle
Rear Hub	SRAM MTH 700, 12x148mm thru-axle, XD Driver
Spokes	DT Swiss Factory J-Bend
Tires	(F) Maxxis Assegai, 29x2.5", 3C, EXO+ / (R) Maxxis Minion DHR II, 29x2.4", EXO+ (Tubeless Ready)
Crankset	SRAM X1 Eagle B148 CL55, 30t
Bottom Bracket	SRAM DUB BSA MTB73
Rear Derailleur	SRAM GX Lunar Eagle, 12-speed
Cassette	SRAM XG-1275, GX Eagle, 10-52t, 12-speed
Chain	SRAM NX Eagle, 12-speed
Shifters	SRAM GX Eagle, 12-speed
Brakes	SRAM Code RSC hydraulic disc
Rotors	SRAM CenterLine 220mm (Front) / 200mm (Rear)
Handlebars	Cannondale 1 Riser, Carbon, 30mm rise, 8° sweep, 780mm
Bar Tape/Grips	Cannondale TrailShroom
Stem	FSA Grid 35, 35mm clamp
Headset	Integrated Sealed Bearing, Tapered
Seatpost	Cannondale DownLow Dropper w/ Matchmaker lever, 31.6mm (125mm S, 150mm M-XL)
Saddle	Fabric Scoop Shallow Elite, hollow cro-mo rails
Extras	Jekyll Custom Fender

All specifications subject to change without notice

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Sizing Guide

Rider Height	Suggested Frame Size	Wheel Size
5'2" - 5'5"	Small (SM)	29"
5'5" - 5'9"	Medium (MD)	29"
5'9" - 6'1"	Large (LG)	29"
6'1" - 6'4"	X-Large (XL)	29"

📏 Sizing
Available in multiple frame sizes to fit a wide range of riders.
Contact us if you need help choosing the correct size.

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🛒 Ready to Ride?
Order your Cannondale Jekyll 1 today and experience a lightweight carbon trail bike designed for fast climbs, efficient pedaling, and confident singletrack performance.