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frontpageSensibleSuit100 posted Today 12:35 AM
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frontpageSensibleSuit100 posted Today 12:35 AM

Cannondale Synapse Carbon 4 Road Bike (48cm, 2021)

+ $150 Shipping

$1,550

$2,600

40% off
30 Comments 11,769 Views
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Deal Details
Bike Exchange has Cannondale Synapse Carbon 4 Road Bike (48cm, 2021) for $1549.99. Shipping is $150.

Thanks to community member SensibleSuit100 for finding this deal.

Features:
  • Synapse Carbon frameset with SmartSense enabled design for proportional response and comfortable ride
  • Shimano Tiagra 10-speed groupset with hydraulic disc brakes for smooth shifting and reliable stopping
  • RD 3.1 wheels with Vittoria Zaffiro Pro reflective tires, 700x30c
  • Internal cable routing, removable fender bridge, and hidden rack/fender mounts
  • Integrated 12x142mm thru-axle for rigidity and aerodynamic efficiency

Editor's Notes

Written by johnny_miller | Staff

Original Post

Written by SensibleSuit100
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Bike Exchange has Cannondale Synapse Carbon 4 Road Bike (48cm, 2021) for $1549.99. Shipping is $150.

Thanks to community member SensibleSuit100 for finding this deal.

Features:
  • Synapse Carbon frameset with SmartSense enabled design for proportional response and comfortable ride
  • Shimano Tiagra 10-speed groupset with hydraulic disc brakes for smooth shifting and reliable stopping
  • RD 3.1 wheels with Vittoria Zaffiro Pro reflective tires, 700x30c
  • Internal cable routing, removable fender bridge, and hidden rack/fender mounts
  • Integrated 12x142mm thru-axle for rigidity and aerodynamic efficiency

Editor's Notes

Written by johnny_miller | Staff

Original Post

Written by SensibleSuit100

Community Voting

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Top Comments

ZepLed
271 Posts
63 Reputation
Tiagra for 1500? Yikes. I guess you pay for the name.
DaveF1252
43 Posts
10 Reputation
I have a variant of this bike. 48cm is about as small as adult bikes get. This is for someone around five feet tall. Second, this is an endurance road bike. It's not meant for flat out speed but rather for comfort on long rides. But it's still fairly fast and not as cushy as something like a beach cruiser. Third, Tiagra is an older groupset (which refers to the drivetrain and brakes), but it's still excellent and low maintenance. It is basically the entry level of Shimano's higher end groupsets. Lastly, these later model Synapses are SmartSense compatible, which is Cannondale's integrated electronics system (for lights and rear radar). SmartSense was sort of a dud on launch but I have it on mine and don't entirely hate it. It adds weight and cost and another thing to break, but one battery for everything with internally routed cables is convenient.
Rnguyen91
32 Posts
18 Reputation
It think your idea of bike pricing is out of touch. Bikes with hydraulic tiagra are usually around 1200-1300. On top of that, this is a carbon frame so $1500 is a pretty good price

29 Comments

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Today 12:38 AM
12 Posts
Joined Dec 2014
Today 12:38 AM
aboriginal_sinToday 12:38 AM
12 Posts

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It looks like only the 48cm is available at this price.
3
Today 02:05 AM
271 Posts
Joined Oct 2020
Today 02:05 AM
ZepLedToday 02:05 AM
271 Posts

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Tiagra for 1500? Yikes. I guess you pay for the name.
3
2
Today 02:05 AM
242 Posts
Joined Sep 2018
Today 02:05 AM
TimeFisherToday 02:05 AM
242 Posts
throw in at least a 105 for this price. Tiagra is laughable.
1
2
Today 03:27 AM
2 Posts
Joined Oct 2022
Today 03:27 AM
TenderSquirrel889Today 03:27 AM
2 Posts
Quote from TimeFisher :
throw in at least a 105 for this price. Tiagra is laughable.
Agreed, this would be deal at $800. Overpriced for the groupset.
2
Today 06:13 AM
32 Posts
Joined Jul 2013
Today 06:13 AM
Rnguyen91Today 06:13 AM
32 Posts

Our community has rated this post as helpful. If you agree, why not thank Rnguyen91

Quote from TenderSquirrel889 :
Agreed, this would be deal at $800. Overpriced for the groupset.
It think your idea of bike pricing is out of touch. Bikes with hydraulic tiagra are usually around 1200-1300. On top of that, this is a carbon frame so $1500 is a pretty good price
1
4
Today 07:03 AM
191 Posts
Joined May 2009
Today 07:03 AM
tallassmikeToday 07:03 AM
191 Posts

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Quote from Rnguyen91 :
It think your idea of bike pricing is out of touch. Bikes with hydraulic tiagra are usually around 1200-1300. On top of that, this is a carbon frame so $1500 is a pretty good price
Once upon a time this was the default price for a carbon frame with Tiagra and alloy wheels. That way you can wait for the clearance price of $1250-1300ish.

Those were the days...... There isn't really bundle discounts anymore on a complete bike. You're practically paying for everything as if it's a pick n part build PC.
Last edited by tallassmike July 23, 2025 at 12:08 AM.
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Today 11:16 AM
43 Posts
Joined Apr 2016
Today 11:16 AM
DaveF1252Today 11:16 AM
43 Posts

Our community has rated this post as helpful. If you agree, why not thank DaveF1252

I have a variant of this bike. 48cm is about as small as adult bikes get. This is for someone around five feet tall. Second, this is an endurance road bike. It's not meant for flat out speed but rather for comfort on long rides. But it's still fairly fast and not as cushy as something like a beach cruiser. Third, Tiagra is an older groupset (which refers to the drivetrain and brakes), but it's still excellent and low maintenance. It is basically the entry level of Shimano's higher end groupsets. Lastly, these later model Synapses are SmartSense compatible, which is Cannondale's integrated electronics system (for lights and rear radar). SmartSense was sort of a dud on launch but I have it on mine and don't entirely hate it. It adds weight and cost and another thing to break, but one battery for everything with internally routed cables is convenient.
3

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Today 12:06 PM
668 Posts
Joined Dec 2022

This comment has been rated as unhelpful by Slickdeals users.

Today 12:20 PM
13,744 Posts
Joined Aug 2004
Today 12:20 PM
avalonToday 12:20 PM
13,744 Posts
Quote from FairTeam939 :
or you can go back years and get a used Trek road bike with 105 components 9 speed for about 200.

that, exactly, I'd love non-carbon with 105 groupset

but are there high end used bikes online somewhere these day other than ebay

I figure a year old bike is going to be half the price of any new bike even on clearance

the problem is trust
1
Today 12:22 PM
13,744 Posts
Joined Aug 2004
Today 12:22 PM
avalonToday 12:22 PM
13,744 Posts
Quote from DaveF1252 :
I have a variant of this bike. 48cm is about as small as adult bikes get. This is for someone around five feet tall.
that's why I always wanted a 650c bike but they are hard to find for a good price
Today 12:47 PM
31 Posts
Joined Sep 2022
Today 12:47 PM
AquaVolcano980Today 12:47 PM
31 Posts
Quote from FairTeam939 :
or you can go back years and get a used Trek road bike with 105 components 9 speed for about 200. it saved me thousands, and no CRACKING carbon frames to worry about.i know, somebody needs to buy these high end bikes, might as well be you. groan, but not me.now the issue is what to do with the 1300 extra dollars in my wallet? should i buy 6 more used Treks with 105 components and aluminum frames? the one i have seems to last forever, so maybe i can pay my electric bill instead.please help me. thanks.
I have had a Cannondale Six Carbon Six for 14 years, riding over 2,000 miles a year and the carbon frame has had no issues, even though I weigh 200 pounds.Most of the people I ride with also have carbon frames, and none of them have ever had a problem with their frames either. I agree that used bikes are a much better deal, but the idea that carbon frames are fragile has been greatly exaggerated.
Today 01:07 PM
649 Posts
Joined Feb 2014

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Today 01:56 PM
307 Posts
Joined Sep 2006
Today 01:56 PM
mntbikeracer1Today 01:56 PM
307 Posts

Our community has rated this post as helpful. If you agree, why not thank mntbikeracer1

Quote from FairTeam939 :
or you can go back years and get a used Trek road bike with 105 components 9 speed for about 200. it saved me thousands, and no CRACKING carbon frames to worry about. i know, somebody needs to buy these high end bikes, might as well be you. groan, but not me. now the issue is what to do with the 1300 extra dollars in my wallet? should i buy 6 more used Treks with 105 components and aluminum frames? the one i have seems to last forever, so maybe i can pay my electric bill instead. please help me. thanks.
Aluminum is just if not more likely to crack than CF. Titanium or Steel are basically bulletproof, aluminum is very much not.
1
Today 02:57 PM
435 Posts
Joined Apr 2020
Today 02:57 PM
FantasticBike3156Today 02:57 PM
435 Posts
Quote from nuy6n6nn :
Definitely paying for the name/carbon fiber. I would never pay $1500 for a bike with a Tiagra group set, that is ridiculous. I would rather pay like $1000 for an aluminum frame and an actual good group set. Tiagra is walmart levels of quality.
Aluminum with Claris was $800 at the clearance Trek near me. Good luck getting better than Tiagra for $1000 on new these days. https://www.trekbikes.com/us/en_U.../p/5301350
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Today 03:18 PM
32 Posts
Joined Jul 2013
Today 03:18 PM
Rnguyen91Today 03:18 PM
32 Posts
Quote from nuy6n6nn :
Definitely paying for the name/carbon fiber.

I would never pay $1500 for a bike with a Tiagra group set, that is ridiculous.

I would rather pay like $1000 for an aluminum frame and an actual good group set. Tiagra is walmart levels of quality.

The fact that you just called tiagra Walmart level shows me that you know absolutely nothing about bikes. Tiagra is one tier down from 105 and the shift quality is exactly the same. The only difference is that tiagra is 10sp compared to 11sp. It is an excellent groupset that you will never find on a Walmart bike. The hydraulic tiagra groupset on this bike cost about $600. You are probably thinking about tourney groupsets which do come on Walmart bike.

Also, your take on buying an aluminum frame is ridiculous. At this point, the best new aluminum frame bike you can get for $1000 will probably come with this exact tiagra groupset. You are much better off getting the carbon frame and upgrading the groupset down the road. Rival axs and 105 di2 are regularly on sale for less than $1000. So for $2500, you get a carbon frame and electronic shifting.

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