Cannondale Trail SE 3 Bike - 2021
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Built to raise your game and ignite a passion for the trail, the Cannondale Trail SE 3 bike brings together new-school handling and mountain-ready components for a confidence-inspiring and fun ride.
Shop similar productsKey Details
Wheel Size
29 inches
Fork Travel
120 millimeters
Number of Gears
11 gear(s)
- A longer-travel 120 mm RockShox Judy Silver TK fork, wider 760 mm bars and a short stem set the tone, whether you're headed off-road for the first time or going farther afield
- Equipped with aggressive 29 x 2.3 in. (front) and 2.25 in. (rear) tires, the Trail SE 3 is ready to handle even the biggest trails
- Premium SmartForm C2 alloy frame offers lightweight, durable performance; tapered steerer tube is compatible with many of the best suspension forks
- 1 x 11-speed shifting and Shimano MT200 hydro disc brakes deliver capable off-road performance
- Internally routed TranzX dropper seatpost lets you drop your saddle out of the way for the descents
- New for 2021, progressive frame design blends the latest trail-ready geometry with dropped seatstays for improved ride quality and a leaner look
- SAVE Micro-suspension delivers a smoother, more controlled ride, thanks to strategically engineered flex zones built into the frame's rear triangle
- Enabled by Boost spacing, the Trail SE 3 bike's short chainstays position the rear wheel optimally for climbing traction and agile handling
- A slacker-than-average 66.5° head angle increases handling stability for extra confidence when the trails point downhill
- All Trail SE sizes come with 29er wheels to deliver the best blend of fit, fast and fun for every rider
- For an integrated look and easy maintenance, the shift and dropper post cables route cleanly through the down tube's StraightShot window; rear brake line is externally routed
- A sleek, hidden mount makes it easy to add a kickstand (not included) for around-town convenience
- 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 Trail Product LineView all Cannondale- 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 | Trail |
| Frame | Smartform C2 alloy |
| Bike Suspension | Front Suspension |
| Fork | RockShox Judy Silver TK, 120 mm, Solo Air, 15x110 thru axle, 51 mm offset |
| Fork Travel | 120 millimeters |
| Crankset | FSA Alpha Drive, 30t |
| Bottom Bracket | Sealed cartridge bearing, square taper |
| Shifters | Shimano Deore M5100, 11-speed |
| Rear Derailleur | Shimano Deore M5100 |
| Rear Cogs | Shimano Deore M5100, 11-51t, 11-speed |
| Number of Gears | 11 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano MT200 hydraulic disc, 180/160 mm RT10 rotors |
| Brake Levers | Shimano MT200 hydraulic disc |
| Rims | WTB STX i25 TCS, 32 h, tubeless ready |
| Front Hub | Shimano MT400, 15 x 110 mm thru axle |
| Rear Hub | Shimano MT400 12 x 148 mm thru axle |
| Wheel Size | 29 inches |
| Tires | Front: WTB Breakout, 29 x 2.3 in.; rear: WTB Trail Boss, 29 x 2.25 in. |
| Tire Width | 2.3 inches 2.25 inches |
| Handlebar Shape | Riser Bar |
| Handlebar | FSA alloy riser, 15 mm rise, 760 mm width |
| Stem | Cannondale, 6061 Alloy, 31.8 mm, 7 deg. |
| Seat Post | TranzX dropper, 31.6 mm, internal routing, 100 mm (S), 120 mm (M-XL) |
| Saddle | Cannondale Ergo XC |
| Pedals | Cannondale Platform |
| Headset | Integrated Sealed Bearing, Tapered |
| Chain | KMC X11, 11-speed |
| Weight | 32 pounds |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Unisex |
| Dropper Post | Yes |
Cannondale Bikes (186717, 186716, 186715, 186719, 186720)
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Height Range | 4'6"-5'2" | 5'1"- 5'4" | 5'4"- 5'8" | 5'7"- 6'0" | 6'0"- 6'3" |
| Reach | 36.7 | 38.5 | 41.5 | 44.0 | 46.5 |
| Stack | 59.3 | 60.9 | 61.9 | 62.9 | 63.8 |
| Effective Top Tube | 54.1 | 56.6 | 59.8 | 62.6 | 65.3 |
| Seat Tube Center-Top | 36.0 | 39.0 | 44.0 | 47.0 | 52.0 |
| Standover Height | 72.9 | 75.4 | 78.8 | 80.9 | 84.3 |
| Head Tube Length | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 |
| Head Tube Angle (degrees) | 66.5 ° | 66.5 ° | 66.5 ° | 66.5 ° | 66.5 ° |
| Seat Tube Angle (degrees) | 74.0 ° | 74.0 ° | 74.0° | 74.0 ° | 74.0 ° |
| Bottom Bracket Height | 31.7 | 31.8 | 31.8 | 31.8 | 31.8 |
| Wheelbase | 108.3 | 111.1 | 114.4 | 117.3 | 120.2 |
| Chainstay | 43.5 | 43.5 | 43.5 | 43.5 | 43.5 |
| Fork Offset | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 |
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.