How to Choose Mountain Bikes
Cannondale Jekyll 1 Mountain Bike
$3,940.93 – to $4,370.93Save up to 30%
With just the right amount of go-fast tech to get you smiling on the descents and a carbon frame to make the uphills more enjoyable, the Cannondale Jekyll 1 mountain bike is made for big mountain fun.
Key Details
Wheel Size
29 inches
Fork Travel
170 millimeters
Number of Gears
12 gear(s)
- Carbon frame is proportional response tuned with a tapered head tube and Ai offset
- Guidler idler pulley/chainguide
- Fox Float Factory 38 fork with 170 mm of travel
- Float Factory X2 air shock with 205 x 65 Metric Trunnion offers adjustable high- and low-speed compression as well as adjustable high- and low-speed rebound
- SRAM Code RSC hydraulic disc brakes with 220/200 mm CenterLine rotors
- HollowGram SAVE carbon riser bar
- DownLow dropper post
- 1 x 12-speed drivetrain
- Pedals not included
- NOTE: Specs and images are subject to change based on component availability
Imported.
This bike comes with Coast to Coast Support, which includes:
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
View the Cannondale Jekyll Product LineView all Cannondale Full-Suspension Mountain Bikes- 1 year of free adjustments (see more below)
- In-store bike assembly
- Pickup in store or curbside
- Bike experts available at 170+ bike shops
- 20% off shop services
- Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
| Best Use | Mountain Biking |
|---|---|
| Mountain Bike Style | All-mountain |
| Frame | 165 mm travel, carbon, proportional response tuned |
| Bike Suspension | Full Suspension |
| Fork | Fox Float Factory 38, 170 mm, 15 x 110 mm thru axle, tapered steerer, 44 mm offset |
| Fork Travel | 170 millimeters |
| Rear Shock | Fox Float Factory X2 |
| Crankset | SRAM X1 Eagle B148 CL55, 30T |
| Bottom Bracket | SRAM DUB BSA MTB73 |
| Shifters | 12-speed |
| Rear Derailleur | SRAM GX Lunar Eagle |
| Rear Cogs | SRAM XG-1275, GX Eagle, 10-52T, 12-speed |
| Number of Gears | 12 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | SRAM Code RSC hydraulic disc |
| Brake Levers | SRAM Code RSC hydraulic disc |
| Rims | WTB KOM Trail i30 TCS, 32h, tubeless ready |
| Front Hub | Formula, 15 x 110 mm thru axle |
| Rear Hub | SRAM MTH 700, 12 x 148 mm, XD Driver |
| Wheel Size | 29 inches |
| Tires | Front: Maxxis Assegai, 29 x 2.5 in., 3C compound, EXO+ puncture protection, tubeless ready; rear: Maxxis Minion DHR II, 29 x 2.4 in., EXO+, tubeless ready |
| Tire Width | 2.5 inches 2.4 inches |
| Handlebar Shape | Riser Bar |
| Handlebar | Cannondale 1 Riser, carbon, 30 mm rise, 8 degree sweep, 5 degree rise, 780 mm |
| Stem | FSA Grid 35, 35 mm |
| Seat Post | Cannondale DownLow Dropper w/ Matchmaker lever, 31.6, 125 mm (Small), 150 mm (Medium), 170 mm (Large-XL) |
| Saddle | Fabric Scoop Shallow Elite, hollow chromoly rails |
| Pedals | Not included |
| Headset | Integrated sealed bearing, tapered |
| Chain | 12-speed |
| Dropper Post | Yes |
| Weight | 34 lbs. 1.6 oz. |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Unisex |
Cannondale Bikes (208175)
| S | M | L | XL | |
|---|---|---|---|---|
| Reach | 42.5 | 45.0 | 47.5 | 51.0 |
| Stack | 62.5 | 63.4 | 64.3 | 65.2 |
| Effective Top Tube | 56.9 | 60.8 | 62.3 | 66.0 |
| Seat Tube Center-Top | 39.0 | 41.0 | 44.5 | 50.0 |
| Standover Height | 75.0 | 75.0 | 76.0 | 77.0 |
| Head Tube Length | 10.0 | 11.0 | 12.0 | 13.0 |
| Head Tube Angle (degrees) | 64.0 | 64.0 | 64.0 | 64.0 |
| Seat Tube Angle (degrees) | 77.5 | 77.5 | 77.5 | 77.5 |
| Bottom Bracket Height | 34.8 | 34.8 | 34.8 | 34.8 |
| Wheelbase | 119.3 | 122.7 | 126.4 | 131.1 |
| Chainstay | 43.0 | 43.5 | 44.2 | 45.0 |
| Fork Offset | 4.4 | 4.4 | 4.4 | 4.4 |
Sizing Notes
Measurements are stated in centimeters unless otherwise indicated.
How we measure bikes
- Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
- Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
- Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
- Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
- Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
- Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
- Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
- Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
- Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
- Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
- Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
- Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.
