Bike type comparison
Cannondale SynapsevsSpecialized Roubaix
A side-by-side UK buyer's guide to help you pick the right type of bike for how you actually ride.
Overview
Comfort is the brief for both, but they get there differently. The Synapse is Cannondale's endurance all-rounder, and recent versions add SmartSense, integrated lights and a radar for road awareness. The Roubaix is Specialized's, using the FutureShock unit to soak up the bars. Both are built for long, comfortable days.
At a glance
Quick verdict
speed
Tie
comfort
Tie
versatility
Cannondale Synapse
value
Tie
Two comfort-led endurance bikes. The Synapse can add SmartSense lights and radar; the Roubaix uses FutureShock to smooth the bars.
- Pick the Synapse for integrated lights, radar and a planted feel.
- Pick the Roubaix for FutureShock comfort and a livelier front.
- Both take wide tyres and shrug off rough roads.
- On a SmartSense Synapse, check the electronics work before buying used.
Feature by feature
Feature comparison
| Feature | Cannondale Synapse | Specialized Roubaix |
|---|---|---|
Stand-out tech Safety tech against bump comfort | SmartSense lights and radar on some builds | FutureShock front comfort |
Comfort Both calm rough roads | Frame design and SAVE flex | FutureShock at the bars |
Tyre clearance Plenty for UK roads on both | Wide endurance tyres | Wide endurance tyres |
Feel Personal preference | Planted and stable | Lively front end |
Decide
Which is best for you?
Choose Cannondale Synapse if...
- Riders who want integrated lights and radar
- Planted, stable all-day handling
- Comfort through frame design
- A do-everything endurance bike
Choose Specialized Roubaix if...
- Soaking up rough roads at the bars
- A racier endurance feel
- FutureShock comfort
- Riders who like a lively front
Community
Have your say
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Start the conversationQuestions
Frequently asked questions
What is SmartSense on the Cannondale Synapse?
SmartSense is Cannondale's integrated system on some Synapse builds, combining front and rear lights with a rear-facing radar that warns of approaching cars, powered by a central battery. It is a genuine safety feature the Roubaix does not match.
Is the Synapse or Roubaix more comfortable?
Both are very comfortable. The Roubaix's FutureShock smooths bumps at the bars, while the Synapse relies on frame design and flex. The Roubaix feels livelier up front; the Synapse feels more planted.
Which should I buy used?
On the Roubaix, check the FutureShock for lost damping. On a SmartSense Synapse, check the lights, radar and battery all work, as that system is costly to fix. Otherwise both are sound used endurance buys.
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