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Description
Synapse Carbon 120 years ago, the original Synapse did something pretty special it quietly reimagined the whole road riding experience. Reasoning that most riders were really looking for something other than the high strung, second shaving pro race bikes, or the mild and mellow comfort road bikes available at the time, Synapse blazed a new path. By melding race level performance and weight with real rider friendly comfort and handling, Synapse set the template and
20 years ago, the original Synapse did something pretty special – it quietly reimagined the whole road riding experience. Reasoning that most riders were really looking for something other than the high-strung, second-shaving pro race bikes, or the mild and mellow “comfort” road bikes available at the time, Synapse blazed a new path. By melding race-level performance and weight with real rider-friendly comfort and handling, Synapse set the template and the tone for what would become known as the Endurance road bike category. Fast forward two decades and six generations of Synapse, and it’s still out front, setting the pace and helping define what the future of core, for-the-love-of-the-ride, road bikes will look like. Synapse is real performance, for the real world.
Unreal performance for real world roads. Unless you’re a WorldTour pro, the Synapse is the perfect road bike for any job. Whether you’re tackling a record-breaking lap of Australia like Lachlan or smashing the not-so-social Sunday ride with your mates, the Synapse exceeds expectations. It blends WorldTour-level aerodynamics and stiffness-to weight with top-tier tire clearance, compliance, and smart features.
FEATURES:
- Real World Performance: Designed to go fast, built to go long, and made to keep you comfortable, the Synapse redefines road performance. With a sub-1000-gram lightweight carbon frame featuring wind-tunnel-sculpted tubing and PB-blasting stiffness-to-weight, it’s a bike that’s ready for anything you demand of it. Just ask Lachlan Morton why he trusted it for his record-smashing lap of Australia. Unreal speed, engineered for real-world roads.
- Compliant Comfort: With advancements in our carbon layup, our engineers have made the new Synapse 20% more compliant than its already butter-smooth predecessor, ensuring you feel 100% more comfortable even on the roughest roads.
- Like A Glove: A great fit and feel makes for a great ride. And with our Proportional Response Construction, every rider gets that as standard. From the carbon layup through to the geometry, everything on Synapse has been tuned and tested by frame size. So that your bike works in harmony with you to deliver the best possible ride.
- Bring it All, Bring it On: Our all-new StashPort downtube storage system is there when you need it and out of sight when you don’t. Designed to work seamlessly with its StashBag companion, it keeps your ride essentials secure no matter where the road takes you. Plus, with hidden top tube bag mounts, discreet fender mounts, and room for high-volume, capable tires, the new Synapse is built to go long and go hard, no matter what the day brings.
-
Ride Confident: Enjoy improved visibility, enhanced situational awareness, and unmatched convenience with the second generation of our SmartSense system. More discreet, more integrated, and more powerful than ever, this intelligent and connected system of lights, radar, sensors, and our Cannondale app brings easy peace of mind to every ride. All running from a single concealed battery, the rear-facing Garmin radar keeps you switched on to approaching traffic, while intelligent headlights and taillights adapt blink patterns and/or brightness to let other road users know you’re there. It will even power your SRAM AXS shifting. And with just one long-lasting battery to charge, it’s
easier than ever to get out and ride with confidence.
SPECS:
| Frame | Synapse Hi-MOD Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle, UDH, BSA 68mm threaded BB, flat mount disc, integrated seat binder, SmartSense Gen 2.0 equipped, fender mounts |
| Fork | Synapse Hi-MOD Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc, internal routing, 1-1/8" to 1 1/5" Delta steerer, 55mm offset, fender mounts |
| Rims/Wheels | Reserve 42|49 Turbulent Aero, 24h, tubeless ready |
| Hubs | (F) DT Swiss 350, 12x100mm centerlock / (R) DT Swiss 350, 12x142mm centerlock |
| Spokes | Sapim CX-Ray Aero straight pull |
| Tires | Vittoria Corsa PRO Control, 700x32c, tubeless ready |
| Crankset | Shimano Ultegra R8100, 50/34, 4iiii PRECISION 3+ PRO Power Meter |
| Chainrings | 50/34 |
| Bottom Bracket | N/A |
| Chain | Shimano Ultegra, 12-speed |
| Front Derailleur | Shimano Ultegra Di2 R8150 |
| Rear Derailleur | Shimano Ultegra Di2 R8150 |
|
Cassette/Rear Cogs
|
Shimano Ultegra R8100, 11-34, 12-speed |
| Shifters | Shimano Ultegra Di2 R8170, wireless, 12-speed |
| Handlebars | Cannondale SystemBar R-One - low drag, full carbon integrated bar/stem, internal routing |
| Stem | Cannondale SystemBar R-One - low drag, full carbon integrated bar/stem, internal routing |
| Brakes | Shimano Ultegra R8170,160/160mm CL800 rotors |
| Pedals | N/A |
| Saddle | Fizik Vento Argo R5, 140mm |
| Seat Post | Cannondale C1 Aero 27 Carbon, SmartSense compatible, 0mm offset (44-48cm), 20mm offset (51-61cm) |
| Extras | Large StashBag downtube storage bag, Fillmore tubeless valves |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Best toy/treat! (Use oil on inner screw to open)
Size: Large, Color: Green
My dogs love these! This gives them a dedicated 20-40min of dog joy. They often get up halfway thru and switch but whatever makes them happy. They do get STUCK! And can be impossible to open. I now use a dot of olive oil on each level of the screw and then twist it in and out a couple times to distribute the lube so its possible to open when they are done. I find it very important to collect them immediately when they are done and open back up for cleaning. Do not let them dry as it will be very difficult to open.
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Reviewed in the United States on June 11, 2026
★★★★★ 5
These are must haves for dog owners!
Size: Large, Color: Pink
These things have saved my sanity! I have two dogs and we use these at least two to three times per week. They are high quality and last thru heavy chewers. We spread peanut butter inside for a quick treat when clipping nails, or make our own mix of Greek yogurt, dry oatmeal, diced carrots, a little pumpkin, and a bit of diced apple, mix it up and freeze it in the Pupsicle mold. That way we have a bunch ready to go and aren’t buying expensive refills. The colors are adorable, the pupsicle is durable, and the dogs LOVE them. FYI - it’s a good idea to use a little olive or avalado oil on the threads when closing them up - it makes life so much easier when screwing then on and off. We throw ours into the dishwasher.
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Reviewed in the United States on June 6, 2026
★★★★★ 5
Like unto the Holy Grail of food toys. [I recommend buying the separate treat mold, too.]
Size: Large, Color: Green
So far, I have no complaints. I can see that this toy might not work well for some combinations of dogs and people, but for my two current dogs (blue heeler and small terrier), this thing, plus the treat mold, is GREAT!
I love that the dogs get it more or less fully emptied, and it is washable. I love that I can pre-prepare a whole bunch of frozen fillings by using the treat mold (sold separately).
Yes, I agree that this is a very expensive item, especially if you buy the treat mold along with the toy. I bought two toys at a very reduced price on Prime day, also bought the treat mold at full price, and consider the combined purchase a great value at this cost. The current price (for the toy) is comparable to the cost of an extra-large Toppl, and I've seen it at a price similar to the current cost of a large Toppl. I checked the current price of the XXL "extreme" Kong I needed to use for one dog, and the current price on a different web site is almost the same as the Woof Pupsicle.
To answer questions and issues I've seen mentioned...
* My terrier weighs 16 pounds and uses the large toy with no problem. Possibly it is minimally less thoroughly cleaned out, but I'm not positive about that. My only warning would be that you ought to keep track of calories and/or what you put in it because you could potentially give a small dog way too many empty calories from "junk food."
* The toy is still usable without the treat mold. Just fill up the solid half of the toy and stick it in the freezer overnight, same as you would do with a Kong, except it takes up less space.
* Do introduce it properly, by initially giving it with NON-frozen and sticky food in it. An even more slow, careful, step-wise introduction may be necessary if your dog is a destructo-dog.
* The terrier takes about 20 minutes to empty it of frozen canned dog food. That's non-trivial, and I'm not sure why people are complaining. The heeler takes less time (maybe 15 minutes?), but it's still an amount of time that is helpful for me, and this licking activity seems to be especially calming for her (as compared to using the food puzzle toys with kibble).
* It initially was extremely difficult to open and close the thing. I was best able to do it with a "light" touch, not pulling and making sure not to press the two surfaces together. After not very long, it became much easier. I didn't need to use oil. If you have trouble getting it closed, it became a lot easier after the solid part was frozen (while the vented part stayed at room temperature).
* I agree with others that a larger version might be nice, but a larger version might make dogs more likely to destroy the toy in place of emptying it by focused licking.
* I'm not sure that any of these toys are truly indestructible. People are mentioning Kongs. Well, my Kongs have required periodic replacement. They have tooth marks and eventually get "modified" to where pieces might get torn off and consumed. For one dog, I had to upgrade to the XXL-size Extreme (black) version, and she also put tooth marks in that.
I own a fortune's worth of Kongs, Toppls, and a couple similar food toys, and they all have their issues. They have holes in them that allow liquid to immediately come out (before freezing occurs). They are bulky and use up a lot of space in the freezer, and the unusual shapes make them non-stackable. For me, Kong toys are time-consuming to fill and difficult to clean. My dogs couldn't get the very end cleaned out without throwing the Kong around (making a big mess), and even then it wasn't fully clean. Some did end up with mold in that part of them. [It looks like new inventions, like plugs (or something like that), may solve some of the problems; I didn't have those.]
I mention the other toys only to say that this unique brilliant toy has seeming solved all those problems, and my dogs truly LOVE this toy as well. Be assured, I will update this review if anything changes.
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Reviewed in the United States on July 24, 2023
★★★★★ 4
Perfect for Our Nervous Rescue Dog
Size: Large, Color: Green
First Impressions
I bought the Pupsicle for our new rescue dog who was very nervous whenever we had to leave the house. Right out of the box it felt sturdy and well-made, and I liked that it wasn’t just another cheap chew toy.
⸻
Setup & Ease of Use
I went with the premade treat inserts to start, which made it super simple — just pop one in and hand it over. It’s also dishwasher-safe, which is a huge win for me since I don’t want to deal with scrubbing peanut butter out of toys.
⸻
Performance in Real Life
She loves it. The Pupsicle has kept her occupied and calm, which has really helped her acclimate to her new home. Instead of pacing or whining when we leave, she settles down with this toy and stays busy.
⸻
Pros & Cons
Pros:
• Helps reduce anxiety for nervous dogs
• Very durable and solid
• Easy to clean (dishwasher safe)
• Premade inserts make it effortless
Cons:
• On the heavier side, so probably best for medium+ dogs
• Inserts are convenient but add a little extra cost
⸻
Who It’s For
Perfect for new dog owners, rescues, or anyone with a dog who needs a healthy distraction when left alone.
⸻
Final Verdict
The Pupsicle has made a noticeable difference for our rescue pup. It’s durable, easy to use, and has genuinely helped her feel more at ease in her new environment. Highly recommend.
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Reviewed in the United States on August 24, 2025
★★★★★ 3
Dogs love it, hard to open and close
Size: Large, Color: Pink, Size: Large, Color: Pink
My dogs love this toy. It keeps them entertained a long time. Great calming toy for when you leave the house. Only issues is it is very hard to open and close. One of mine I had three people try to open and after fighting with it for about an hour I finally got it opened. Got 2, one a blue and pink one for each of my dogs. The blue is easier than the pink but still hard to do. Just not as bad. Can't close the pink all the way because it is so hard to close. The dog that uses it has trouble getting the stuff out of it. But it doesn't stop her from trying for hours to do so. Does get some teeth marks on it as well if they are aggressive chewer. Tried multiple eatable lubricating substances to try to make it easier but so far nothing fully worked. Aloe Vera has worked the best so far, but not great.
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Reviewed in the United States on February 17, 2026
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