Cannondale Synapse AL 2 Bike
Roll fast and smooth with confidence on the Cannondale Synapse AL 2 bike. A road machine, it's up for anything and built to give you a comfortable ride no matter where the asphalt takes you.
Key Details
- Shimano Tiagra 10-speed drivetrain
- DT Swiss rims with Vittoria Zaffrio Pro 700c x 30 mm tires
- Lightweight alloy handlebars; Fizik saddle
- NOTE: Specs and images are subject to change based on component availability
Imported.
- 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 | Road Cycling |
|---|---|
| Frame | Lightweight SmartForm C2 alloy with internal cable routing, flat mount, 12 x 142 mm through-axle, removable fender bridge, hidden rack/fender mounts |
| Bike Suspension | No Suspension |
| Fork | Synapse carbon with integrated crown race, 12 x 100 mm through-axle, internal routing, flat mount brake, fender mounts |
| Crankset | 50/34T |
| Bottom Bracket | Shimano RS500 BSA threaded |
| Shifters | 10-speed |
| Front Derailleur | Shimano Tiagra |
| Rear Derailleur | Shimano Tiagra GS |
| Rear Cogs | Shimano HG500, 11-34T, 10-speed |
| Number of Gears | 20 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano Tiagra hydraulic disc, 160/160 mm RT54 rotors |
| Brake Levers | Shimano Tiagra |
| Rims | DT Swiss R470 DB, 28 h, tubeless ready |
| Front Hub | Formula CL-712, 12 x 100 mm Center Lock |
| Rear Hub | Formula RXC-400, 12 x 142 mm Center Lock |
| Wheel Size | 700c |
| Tires | Vittoria Zaffiro Pro bright black, reflective |
| Tire Width | 30 millimeters |
| Handlebar Shape | Drop Bar |
| Handlebar | Cannondale 3: 6061 alloy, compact |
| Stem | Cannondale 3: 6061 alloy, 31.8 mm, 7 deg. |
| Seat Post | Cannondale 3: 6061 alloy, 27.2 x 350 mm |
| Saddle | Fizik Aliante Delta, S-alloy rails |
| Pedals | Wellgo with Clip and Strap |
| Headset | 1-1/8 in. to 1-1/4 in. |
| Chain | Shimano HG54, 10-speed |
| Weight | 22 lbs. 13.4 oz. |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Unisex |
| 44 CM | 48 CM | 51 CM | 54 CM | 56 CM | 58 CM | 61 CM | |
|---|---|---|---|---|---|---|---|
| Height Range | 5'0" - 5'4" | 5'2" - 5'6" | 5'5" - 5'9" | 5'7" - 5'11" | 5'9" - 6'1" | 6'0" - 6'4" | 6'3" - 6'8" |
| Reach | 36.5 | 37.1 | 37.6 | 38.1 | 38.7 | 39.3 | 40.2 |
| Stack | 51.0 | 53.0 | 55.0 | 57.0 | 59.0 | 61.0 | 64.0 |
| Effective Top Tube | 52.1 | 53.3 | 54.4 | 55.5 | 56.7 | 58.0 | 59.8 |
| Seat Tube Center-Top | 40.0 | 42.2 | 44.3 | 48.0 | 52.0 | 55.0 | 59.0 |
| Standover Height | 68.1 | 70.2 | 72.3 | 75.3 | 78.4 | 81.0 | 84.5 |
| Head Tube Length | 9.6 | 11.5 | 14.0 | 16.0 | 18.1 | 20.5 | 23.6 |
| Head Tube Angle (degrees) | 70.2 | 70.8 | 71.0 | 71.9 | 72.0 | 72.0 | 72.0 |
| Seat Tube Angle (degrees) | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 |
| Bottom Bracket Height | 26.3 | 26.3 | 26.8 | 27.0 | 27.0 | 27.3 | 27.3 |
| Wheelbase | 98.5 | 99.3 | 101.0 | 101.0 | 102.1 | 103.5 | 105.4 |
| Chainstay | 41.5 | 41.5 | 41.5 | 41.5 | 41.5 | 41.5 | 41.5 |
| Fork Offset | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
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.
Review this Product
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Great bike but you may not get the specs listed
Overall the bike functions very well and I have been enjoying it so far. Mine did come with the top tube bag which was a nice addition. The trainer axle was not included with mine. Mine also didn't come with the listed Shimano cranks but instead FSA Gossamer cranks. I brought it up when I picked up the bike as I thought I was getting a full Shimano Tiagra set up as listed in the specs. I was told it came from Cannondale this way and was not offered the option to switch out to the advertised Shimano cranks. The FSA cranks have worked well so far but kind of disappointing that you really have no idea what parts you may end up with.
Cannondale quality has gone down the drain.
So I think Cannondale quality has slowly been degrading, I've read that they have been loosening their tolerances for max deviance from specific dimensions and it's really starting to affect the quality of their bikes. I purchased this bike new and have been having so many unusual issues I never had with any other bike. The rear wheel thru-axle does not fit properly and cross-threads so easily, I had issues putting it together. Also, the wheels were trash within a month, the spokes lost all their tention and the bike would wobble at normal speeds. I needed to purchase a new wheel for $275 within a month of purchaing the bike. Never purchasing another Cannondale bike again.
My 1st Road Bike
I really enjoy this bike. The brakes are literally amazing. The hub has a great sound. The bike itself is lighter than expected, it shifts really well. I just wish it came in a cooler color lol I'd definitely recommend this bike though!
BEST "budget" road bike ever
I fit size 35 tires on here for gravel trails and use the 30's for when I want to really enjoy the road experience. It shifts well, has a great sound, and of all the endurance bikes that I've ridden, it's one of the most aggressive. So if you're trying to merry the geometry of a fun and fast road bike while also having space for some off reading this is for sure your ride.
Wonderful!
Loved it but I ordered the wrong size. Look at the Cannondale website for height ranges before ordering. The shifting and braking is smooth.
Great bike!
Had this for a few weeks now, initially purchased a larger size but checked on Cannondale’s website and was able to get my correct size. Everything works great and is super fun to ride. Comes with everything as listed except FSA crank instead of the Tiagra crank.
Fun, fast bike with great handling
TLDR: Good quality, shifts smooth, fast and the breaks are fantastic. My riding details for context: Ride frequency: 5+ days/week (for exercise). I ride about 40 - 50 miles per week. I upgraded from hybrid city bike to Synapse AL 2. The bike quality is top notch, the shifting is smooth and the bike is super light. I live in a hilly region and this bike is surprising a easy to handle steep roads. I can climb 15-20% acclivity mostly relying on the back gears. My first hydraulic break on a bike and I can descent with lot of confidence, thanks to its amazing breaking power.