New Cannondale Jekyll 2021 – An Ultimate Guide
Exciting news for Cannondale and mountain bike fans alike as Cannondale launches their all-new Cannondale Jekyll 2021. The new Jekyll is a completely new design from previous years with new geometry, suspension, and also a high-idler. Read on for more information.
So without further ado here is our ultimate guide to the new Cannondale Jekyll 2021.
Quick links:
Cannondale Jekyll 2021 Release Video
”Even though Jekyll boasts a unique combo of go-fast tech that’s never
Cannondale
been seen before, it's not a bike that talks. It’s a bike that goes.
Jekyll 2021 Features
- 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.
- 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 geometry, even the length of the chainstays is completely customizes by size, for your center of gravity – performance built just for you.
Category
Mountain / Trail / Enduro
Wheel / Tire Size
29×2.5” (F) 2.4” (R)
Travel
165mm rear / 170mm front
Jekyll 2021 Technology
Suspension Like No Other
The high main pivot gives it a bump-swallowing rearward axle path. Shock placement in the down tube keeps the weight low. The 4-bar linkage keeps braking smooth, traction high, and pedaling crisp.
Guidler
Idler pulley + chain guide = 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.
Proportional Response Suspension
A rider’s center of gravity drives how the suspension performs, yet most bikes use the exact same suspension layout for all sizes. We optimize the suspension kinematics by size for next-level ride quality and performance.
Proportional Response Geometry
Long, slack, and low – and fully size-specific. As the front of the bike gets longer with each size, the chainstay length increases proportionally, keeping the rider centered between the wheels for true “made for you” handling.
Shock/Frame Guard
Special downtube protector keeps your shock and frame safe from roost and strikes, plus lets cool air in and water and crud out.
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.
Jekyll 1 Specification
Here is the Cannondale Jekyll 1 complete specification and build kit.
See you at the bottom Even though Jekyll runs a unique combo of innovation that has literally never been seen before, it’s not a bike that talks. It’s a bike that goes.
- Fox Float Factory 38, 170mm Fork / Float Factory X2 Shock
- SRAM GX/X1 Eagle 12-speed drivetrain / Code RSC hydraulic disc brakes
- HollowGram SAVE carbon riser bar / DownLow dropper post
Sizes SM, MD, LG, XL Colors Beetle Green (BGN) / Graphite (GRA)Travel 170mm (F) / 165mm (R) Wheel/Tire 29×2.5
| Frame | 165mm travel, Carbon, Proportional Response Tuned, Guidler idler pulley/chainguide, BSA 73, ISCG05, tapered head tube, Ai Offset | Rear Cogs | SRAM XG-1275, GX Eagle, 10-52, 12-speed |
| Fork | Fox Float Factory 38, 170mm, 15x110mm thruaxle, tapered steerer, 44mm offset | Front Derailleur | N/A |
| Rear Shock | Fox Float Factory X2, 205×65 Metric Trunnion, Air, Adjustable High Speed/Low Speed Compression, High Speed/Low Speed Rebound | Rear Derailleur | SRAM GX Eagle Lunar |
| Rims | WTB KOM Trail i30 TCS, 32h, tubeless ready | Shifters | SRAM GX Eagle, 12-speed |
| Hubs | (F) Formula, 15x110mm thru-axle / (R) SRAM MTH 700, 12x148mm, XD Driver | Handlebar | Cannondale 1 Riser, Carbon, 30mm rise, 8° sweep, 5° rise, 780mm |
| Spokes | DT Swiss Factory J -Bend | Grips | Fabric Funguy |
| Tires | (F) Maxxis Assegai, 29 x 2.5″, Dual compound, EXO+ puncture protection, tubeless ready (R) Maxxis Minion DHR II, 29 x 2.4″, EXO+, tubeless ready | Stem | FSA Grid 35, 35mm |
| Pedals | Not included | Headset | Integrated Sealed Bearing, Tapered |
| Crank | SRAM X1 Eagle B148 CL55, 30T | Brakes | SRAM Code RSC hydraulic disc, 220/200mm CenterLine rotors |
| Bottom Bracket | SRAM DUB BSA MTB73 | Brake Levers | SRAM Code RSC hydraulic disc |
| Chain | SRAM NX Eagle, 12-speed | 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) | Color 1 | Beetle Green (BGN) |
| Sizes | SM, MD, LG, XL | Color 2 | Graphite (GRA) |
| Extras | Jekyll Custom Fender |
Jekyll 1 Gallery
Jekyll 2 Specification
Here is the Cannondale Jekyll 2 complete specification and build kit.
See you at the bottom Even though Jekyll runs a unique combo of innovation that has literally never been seen before, it’s not a bike that talks. It’s a bike that goes.
- RockShox Zeb Select 170mm Fork / Float DPX2 Performance Shock
- Shimano Deore 12-speed drivetrain / Deore M6120 hydraulic disc brakes
- WTB STX 30mm rims / Maxxis Assegai/Minion DHR EXO+ tires / dropper post
Sizes SM, MD, LG, XL Colors Graphite (GRA) / Purple Haze (PRH)Travel 170mm (F) / 165mm (R) Wheel/Tire 29×2.5
| Frame | 165mm travel, Carbon, Proportional Response Tuned, Guidler idler pulley/chainguide, BSA 73, ISCG05, tapered head tube, Ai Offset | Rear Cogs | Shimano Deore M6100, 10-51, 12-speed |
| Fork | RockShox Zeb Select, 170mm, 15x110mm thru-axle, tapered steerer, 44mm offset | Front Derailleur | N/A |
| Rear Shock | Fox Float DPX2 Performance EVOL, 205×65 Metric Trunnion, Air, 3-Pos adj. | Rear Derailleur | Shimano Deore M6100 |
| Rims | WTB STX i30 TCS, 32h, tubeless ready | Shifters | Shimano Deore M6100, 12-speed |
| Hubs | (F) Shimano MT400, 15x110mm thru-axle / (R) Shimano MT410 12x148mm thru-axle | Handlebar | Cannondale 3 Riser, 6061 Alloy, 30mm rise, 8° sweep, 6° rise, 780mm |
| Spokes | Stainless steel, 14g | Grips | Fabric Funguy |
| Tires | (F) Maxxis Assegai, 29 x 2.5″, Dual compound, EXO+ puncture protection, tubeless ready (R) Maxxis Minion DHR II, 29 x 2.4″, EXO+, tubeless ready | Stem | Cannondale 3, 6061 Alloy, 31.8, 0° |
| Pedals | Not included | Headset | Integrated Sealed Bearing, Tapered |
| Crank | Shimano Deore 6120, 30T, 55mm CL | Brakes | Shimano M6120 hydraulic disc, 203/203mm RT64 rotors |
| Bottom Bracket | Shimano Deore BSA 73 | Brake Levers | Shimano M6120 hydraulic disc |
| Chain | Shimano Deore 6100, 12-speed | Saddle | Cannondale Stage 3 |
| Seatpost | TranzX dropper, internal routing, 130mm (S), 150mm (M,L,XL) | Color 1 | 1 Purple Haze (PRH) |
| Sizes | SM, MD, LG, XL | Color 2 | Graphite (GRA) |
| Extras | Jekyll Custom Fender |
Jekyll 2 Gallery
2021 Cannondale Jekyll Geometry
| S | M | L | XL | |
| Wheel Size | 29″ | 29″ | 29″ | 29″ |
| A Seat Tube Length (cm) | 39.0 | 41.0 | 44.5 | 50.0 |
| B Top Tube Horizontal (cm) | 56.9 | 60.8 | 62.3 | 66.0 |
| C Top Tube Actual (CM) | 54.1 | 56.9 | 58.8 | 62.7 |
| D Head Tube Angle | 64.0º | 64.0º | 64.0º | 64.0º |
| E1 Seat Tube Angle Effective | 77.5º | 77.5º | 77.5º | 77.5º |
| F Standover (cm) | 75.0 | 75.0 | 76.0 | 77.0 |
| G Head Tube Length (cm) | 10.0 | 11.0 | 12.0 | 13.0 |
| H Wheelbase (cm) | 119.3 | 122.7 | 126.4 | 131.1 |
| I Front Center (cm) | 76.5 | 79.4 | 82.3 | 86.3 |
| J Chain Stay Length (cm) | 43.0 | 43.5 | 44.2 | 45.0 |
| K Bottom Bracket Drop (cm) | 3.0 | 3.0 | 3.0 | 3.0 |
| L Bottom Bracket Height (cm) | 34.8 | 34.8 | 34.8 | 34.8 |
| M Fork Rake (cm) | 4.4 | 4.4 | 4.4 | 4.4 |
| N Trail (cm) | 13.5 | 13.5 | 13.5 | 13.5 |
| O Stack (cm) | 62.5 | 63.4 | 64.3 | 65.2 |
| P Reach (cm) | 42.5 | 45.0 | 47.5 | 51.0 |
Cannondale Jekyll 2021 Suspension Explainer Video
Jekyll Suspension Kinematics
Anti Rise
Anti Squat
Axel Path
Leverage Ratio
Pedal Kickback
So what do you think of the new Cannondale Jekyll? Will you be getting one and if so would you go for the Jekyll 1 or Jekyll 2?
What do you think of the new geometry and suspension changes for this year’s Jekyll? It’s essentially a completely new bike with the same Jekyll name. What about the high-idler? If you’ve read some of our other articles you will know I am a huge fan of high-idler bikes such as the Deviate Highlander and Forbidden Dreadnought and Druid.
You can learn more about the all-new Cannondale Jekyll 2021 here: https://www.cannondale.com/jekyll
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