Cannondale Jekyll 1 GX Eagle 29 Mountain Bike

Descend into Greatness
It’s a hell of a climber but come on. Jekyll was born for the downs. Every part of it crafted for the sweet embrace of speed, every element designed to help you wring a bit more of velocity’s nectar from those steep, chunky, high pucker lines you love.

Features

• Best. Suspension. Ever.:  4-bar meets high pivot meets idler pulley meets size-specific kinematics. For real. If you’re not up for suspension buzzword bingo, just know that it grips, floats, and pedals like nothing else. It’s always up for getting down.
• The Gravity Cavity: The shock tucks cleanly into the twin spar downtube, keeping the bike's center of gravity as low as possible. Wicked stability, instant line changes and one-of-a-kind looks.
• Built for You: Well, not you specifically. But someone just like you. With our Proportional Response design, everything - from the suspension layout to the geometry, even the length of the chainstays - is completely customized by size, for performance built just for you.
• Suspension Like No Other: High main pivot gives it a bump-swallowing rearward axle path. The Guidler pulley kills the pedal kickback of high pivot systems. The 4-bar linkage keeps braking smooth, traction high and pedaling crisp.
• Guidler: Idler pulley + chainguide = Guidler. Clever, right? Idler eliminates feedback from the high pivot swingarm, keeping your pedal stroke smooth, even when the terrain isn't. The guide, well, it guides.
• Suspension Built for You: A rider's center of gravity drives how the suspension performs, yet most bikes use the exact same layout for all sizes. Proportional Response Suspension alters the design by size for truly next-level performance.
• Proportional Response Geometry: Long, slack and low – and fully size-specific. As the front of the bike gets longer with each size, the chain stay length increases proportionally, keeping the rider centered between the wheels for true “made for you” handling.
• Guardhouse: Downtube protector keeps your frame safe from roost and strikes, while letting water and debris pass through.
• The Ai Advantage: Our Ai Offset Drivetrain delivers more tire and mud clearance in the swingarm, and more even spoke angles for a stiffer, stronger rear wheel.

Specifications

• Bottom Bracket: SRAM DUB BSA MTB73
• Chain: SRAM NX Eagle, 12-speed
• Crank: SRAM X1 Eagle B148 CL55, 30T
• Rear Cogs: SRAM XG-1275, GX Eagle, 10-52, 12-speed
• Rear Derailleur: SRAM XO1 Eagle
• Shifters: SRAM GX Eagle, 12-speed
• Fork: Fox Float Factory 38, 170mm, 15x110mm thru-axle, tapered steerer, 44mm offset
• Frame: All-New, 165mm travel, Carbon, Proportional Response Tuned, Guidler idler pulley/chainguide, BSA 73, ISCG05, tapered head tube, Ai Offset
• Headset: Integrated Sealed Bearing, Tapered
• Rear Shock: Fox Float Factory X2, 205x65 Metric Trunnion, Air, Adjustable High Speed/Low Speed Compression, High Speed/Low Speed Rebound
• Front Tire:Maxxis Assegai, 29 x 2.5", 3C compound, EXO+ puncture protection, tubeless ready
• Hubs: (F) Formula, 15x110mm thru-axle / (R) SRAM MTH 700, 12x148mm, XD Driver
• Rear Tire: Maxxis Minion DHR II, 29 x 2.4", EXO+, tubeless ready
• Rims: WTB KOM Trail i30 TCS, 32h, tubeless ready
• Spokes: DT Swiss Factory J -Bend
• Tire Size: 2.5
• Tires: (F) Maxxis Assegai, 29 x 2.5", 3C compound, EXO+ puncture protection, tubeless ready, (R) Maxxis Minion DHR II, 29 x 2.4", EXO+, tubeless ready
• Wheel Size: 29
• Brake Levers: SRAM Code RSC hydraulic disc
• Brakes: SRAM Code RSC hydraulic disc, 220/200mm CenterLine rotors
• Grips: Fabric Funguy
• Handlebar: Cannondale 1 Riser, Carbon, 30mm rise, 8° sweep, 5° rise, 780mm
• Saddle: Fabric Scoop Shallow Elite, hollow cro-mo rails
• Seatpost: Cannondale DownLow Dropper w/ Matchmaker lever, 31.6, 125mm (S), 150mm (M), 170mm (L-XL)
• Stem: FSA Grid 35, 35mm

Geometry