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Cannondale Synapse Carbon 4

Marsoni M251S
Sale price$3999.50
Pay 4 payments of $999.88 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Cannondale Synapse Carbon 4CANNONDALE SYNAPSE CARBON 4 Road Reimagined Go long, go short, go fast. This is WorldTour performance for real world rides. Model Description Wireless brains meet all road brawn. Synapse Carbon 4 runs Shimano 105 Di2 for a shifting experience that feels straight off the pro tour, minus the bank loan. The frame delivers that signature Synapse ridequietly fast, endlessly composedand plays nice with wide tires, fenders, and long days. Call it the sweet
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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]
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4.9 ★★★★★
Based on 1719 reviews
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Verified Purchase
Brian
Boise, US
★★★★★ 4
No issues
Great aftermarket o ring. If for whatever reason OEM isn’t possible, these o rings will work perfectly fine. Had no issues installing into power steering system. Still would recommend Honda o rings if you can because they are also cheap.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
J
Verified Purchase
Jeff in Iowa
Boise, US
★★★★★ 5
Fixed noisy and leaking power steering pump
My daughters 2008 Honda Accord 2.4L 4 cylinder that had a very noisy power steering pump which was also starting to leak. I was about to buy a new pump when I found out it might just be leaking from the hoses to the pump. I bought these O rings for the hose connections at the power steering pump, and spent 15 minutes replacing them. Pump is quiet again! The suction hose can develop a leak, letting air get into the pump which creates the loud noises. This fix is all I needed, and was much cheaper and faster than replacing the power steering pump.
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Reviewed in the United States on March 10, 2026
J
Verified Purchase
Josh
Chelsea, US
★★★★★ 5
Perfect!
Fits exactly on my 2000 civic and I have not had any issues!
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Reviewed in the United States on February 18, 2026
A
Verified Purchase
Amazon Customer
Dallas, US
★★★★★ 5
Good brand
They work good so far.
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Reviewed in the United States on March 4, 2026
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Perfect fit for 2004 Honda Element, Fixed leak!!
Perfect fit for 2004 Honda Element Dx. Fixed my power steering leak and was super easy to install. Took 5-10mins at most. Would definitely buy again, 5/5 stars!!!
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Reviewed in the United States on December 26, 2025

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