Specialized Roubaix SL8 vs Specialized S-Works Tarmac SL8

143 facts in comparison

Based on 127 Reddit opinions. Roubaix SL8Specialized Roubaix SL8 leads by 19 points.

127 opinions

Roubaix SL8 leads by 19pts

Reddit's Pick

82%

B+

Based on

114 Redditors

Winner

Specialized Roubaix SL8

~$19.99

61 opinions

tldr; Endurance road perfection. Smooth on rough roads, fast too.

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63%

Based on

113 Redditors

Specialized S-Works Tarmac SL8

~$26.99

66 opinions

tldr; The race bike. Lightweight, aero, pro-level.

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⚡COM

🔧FRA

📐FIT

⭐VER

⭐VAL

Points

Score by Category

Components

50%0%

Frame Quality

100%100%

Fit & Sizing

50%100%

Versatility

100%—

Value

50%12%

Why is S-Works Tarmac SL8 better than Specialized Roubaix SL8?

Better fit (100% vs 50%)
Race bike
Ultra light
Aero

Based on 227 Reddit opinions

Clear Winner

Reddit prefers the Roubaix SL8Specialized Roubaix SL8

Winning by 19 points (82% vs 63%)

Better value

Better speed

Better tire clearance

High confidence (227 mentions)

💬Reddit Sentiment

Based on 227 Reddit mentions

Overall Rating

Roubaix SL8

8.2/10

114 mentions

Tarmac SL8

6.3/10

113 mentions

COMFORT

Roubaix SL87.5/10

Tarmac SL8N/A

AGE

Roubaix SL80.0/10

Tarmac SL80.0/10

VALUE

Roubaix SL85.0/10

Tarmac SL81.2/10

PRICE

Roubaix SL80.0/10

Tarmac SL85.0/10

GROUPSET

Roubaix SL80.0/10

Tarmac SL85.0/10

CONDITION

Roubaix SL85.0/10

Tarmac SL8N/A

⚔️

Head to Head

Topic	Roubaix SL8	Tarmac SL8
Comfort	75%	N/A
Age	0%	0%
Value	50%	12%
Price	0%	50%
Groupset	0%	50%
Condition	50%	N/A
Components	50%	0%
Aggressiveness	0%	N/A
Geometry	100%	N/A
Suspension	100%	N/A
Performance	100%	N/A
Fit	50%	100%
Warranty	100%	100%
Efficiency	100%	N/A
Speed	100%	50%
Tire Clearance	100%	50%
Drivetrain	0%	100%
Frame Quality	100%	N/A
Ease Of Maintenance	100%	N/A
Parts Availability	100%	N/A
Brand Loyalty	100%	N/A
Frame	100%	100%
Versatility	100%	N/A
Maintenance	0%	0%
Frame Size	0%	N/A
Weight	N/A	100%
Authenticity	N/A	0%
Stiffness	N/A	100%
Tech	N/A	0%
Cost	N/A	0%
Suitability	N/A	0%
Riding Style	N/A	50%
Materials	N/A	0%
Aerodynamics	N/A	33%
Brakes	N/A	100%
Equipment	N/A	100%
Adjustability	N/A	0%
Gearing	N/A	0%
Build Quality	N/A	100%
Resale Value	N/A	100%
Paint Job	N/A	100%
Support	N/A	100%

Category Wins

Roubaix SL8: 15|Tarmac SL8: 14

Head to Head

Roubaix SL8: 15|Tarmac SL8: 14

ComfortRoubaix SL8

Roubaix SL875%

Tarmac SL8N/A

Age

Roubaix SL80%

Tarmac SL80%

ValueRoubaix SL8

Roubaix SL850%

Tarmac SL812%

PriceTarmac SL8

Roubaix SL80%

Tarmac SL850%

GroupsetTarmac SL8

Roubaix SL80%

Tarmac SL850%

ConditionRoubaix SL8

Roubaix SL850%

Tarmac SL8N/A

ComponentsRoubaix SL8

Roubaix SL850%

Tarmac SL80%

Aggressiveness

Roubaix SL80%

Tarmac SL8N/A

GeometryRoubaix SL8

Roubaix SL8100%

Tarmac SL8N/A

SuspensionRoubaix SL8

Roubaix SL8100%

Tarmac SL8N/A

PerformanceRoubaix SL8

Roubaix SL8100%

Tarmac SL8N/A

FitTarmac SL8

Roubaix SL850%

Tarmac SL8100%

Warranty

Roubaix SL8100%

Tarmac SL8100%

EfficiencyRoubaix SL8

Roubaix SL8100%

Tarmac SL8N/A

SpeedRoubaix SL8

Roubaix SL8100%

Tarmac SL850%

Tire ClearanceRoubaix SL8

Roubaix SL8100%

Tarmac SL850%

DrivetrainTarmac SL8

Roubaix SL80%

Tarmac SL8100%

Frame QualityRoubaix SL8

Roubaix SL8100%

Tarmac SL8N/A

Ease Of MaintenanceRoubaix SL8

Roubaix SL8100%

Tarmac SL8N/A

Parts AvailabilityRoubaix SL8

Roubaix SL8100%

Tarmac SL8N/A

Brand LoyaltyRoubaix SL8

Roubaix SL8100%

Tarmac SL8N/A

Frame

Roubaix SL8100%

Tarmac SL8100%

VersatilityRoubaix SL8

Roubaix SL8100%

Tarmac SL8N/A

Maintenance

Roubaix SL80%

Tarmac SL80%

Frame Size

Roubaix SL80%

Tarmac SL8N/A

WeightTarmac SL8

Roubaix SL8N/A

Tarmac SL8100%

Authenticity

Roubaix SL8N/A

Tarmac SL80%

StiffnessTarmac SL8

Roubaix SL8N/A

Tarmac SL8100%

Tech

Roubaix SL8N/A

Tarmac SL80%

Cost

Roubaix SL8N/A

Tarmac SL80%

Suitability

Roubaix SL8N/A

Tarmac SL80%

Riding StyleTarmac SL8

Roubaix SL8N/A

Tarmac SL850%

Materials

Roubaix SL8N/A

Tarmac SL80%

AerodynamicsTarmac SL8

Roubaix SL8N/A

Tarmac SL833%

BrakesTarmac SL8

Roubaix SL8N/A

Tarmac SL8100%

EquipmentTarmac SL8

Roubaix SL8N/A

Tarmac SL8100%

Adjustability

Roubaix SL8N/A

Tarmac SL80%

Gearing

Roubaix SL8N/A

Tarmac SL80%

Build QualityTarmac SL8

Roubaix SL8N/A

Tarmac SL8100%

Resale ValueTarmac SL8

Roubaix SL8N/A

Tarmac SL8100%

Paint JobTarmac SL8

Roubaix SL8N/A

Tarmac SL8100%

SupportTarmac SL8

Roubaix SL8N/A

Tarmac SL8100%

Roubaix SL8

82%

63%

Tarmac SL8

Roubaix SL882%

Tarmac SL863%

Clear winner - Roubaix SL8 leads by 19 points

Key Specs

Spec	Specialized Roubaix SL8	Specialized S-Works Tarmac SL8
Frame	FACT 10R Carbon, Rider First Engineered, FreeFoil Shape Library tubes	—
Fork	Future Shock 3.2 w/ Smooth Boot, FACT Carbon	—
Groupset	SRAM Rival AXS (12-speed) or Shimano Ultegra Di2 (12-speed)	Shimano Dura-Ace Di2 or SRAM Red eTap AXS (with power meter)
Tire Clearance	Up to 38c/40mm	Up to 32mm
Seatpost	S-Works Pave (FACT Carbon)	—

Key Highlights

Specialized Roubaix SL8Winner

🛣️ Endurance

🧈 Smooth ride

⚡ Still fast

💸 Premium

Specialized S-Works Tarmac SL8

🏆 Race bike

🪶 Ultra light

💨 Aero

💸 Very expensive

Some users report issues (25% negative)

Topic Battles

Roubaix SL8: 3|Tied: 1|Tarmac SL8: 1

⚡Components

Roubaix SL8 wins

Roubaix SL8

50%

Tarmac SL8

🔧Frame Quality

Roubaix SL8

100%

Tarmac SL8

100%

📐Fit & Sizing

Tarmac SL8 wins

Roubaix SL8

50%

Tarmac SL8

100%

⭐Versatility

Roubaix SL8 wins

Roubaix SL8

100%

Tarmac SL8

—

⭐Value

Roubaix SL8 wins

Roubaix SL8

50%

Tarmac SL8

12%

Based on Reddit sentiment across 5 categories

📈Where They Rank

💬What Redditors Actually Say

What Redditors Say

Best praise vs top criticism for Specialized Roubaix SL8

Best Praise

+11 pts

“Roubaix if it fits. I'm not sure why some of these bikes are in consideration at all, honestly. Quite an eclectic mix.”

r/whichbike

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Top Criticism

+3 pts

“Low end Shimano group set. How old? Roubaix is a prestigious name in cycling competitions but I don’t see anything outstanding in this bike that would warrant $650. Way too expensive.”

r/whichbike

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3 more quotes available below

What Redditors Say

Best praise vs top criticism for Specialized S-Works Tarmac SL8

Best Praise

+6 pts

“My god, a lot of low ballers here. Someone said that’s a 1000$ bike. Hahahahahaha. Anyway, that’s close to 2k$ value. Regardless if it’s “old”, it’s still a modern frame, S-Works at that and it has Di2. ”

r/whichbike

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Top Criticism

+5 pts

“This is a bike from the mid late 2000s, hard to say exactly which year. Even as an S-Works, this is an old ass triathlon bike and is worth nowhere near $1200. Seller must have a great dealer. I concur with the other poster, around $300 is probably reasonable.”

r/whichbike

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3 more quotes available below

Sentiment Over Time

Roubaix SL8

Tarmac SL8

📈Historical Price Data

Specialized Roubaix SL8

Specialized S-Works Tarmac SL8

Specialized Roubaix SL8

All-time low!

Specialized S-Works Tarmac SL8

All-time low!

Which is Better?

Specialized Roubaix SL8 Wins

82%

SL8

63%

SL8

Specialized Roubaix SL8 leads by 19 points based on 227 Reddit opinions.

Why Roubaix SL8Winner

Better Value for Money (50% vs 12%)

Why Tarmac SL8

🏆 Race bike
🪶 Ultra light

❤️The Love/Hate Breakdown

Sentiment Breakdown

46%Positive

Positive

46%

Neutral

46%

Negative

Based on 114 Reddit opinions

Sentiment Breakdown

34%Positive

Positive

34%

Neutral

41%

Negative

25%

Based on 113 Reddit opinions

Specification Comparison

Spec	Specialized Roubaix SL8	Specialized S-Works Tarmac SL8
Frame	FACT 10R Carbon, Rider First Engineered, FreeFoil Shape Library tubes	—
Fork	Future Shock 3.2 w/ Smooth Boot, FACT Carbon	—
Groupset	SRAM Rival AXS (12-speed) or Shimano Ultegra Di2 (12-speed)	Shimano Dura-Ace Di2 or SRAM Red eTap AXS (with power meter)
Tire Clearance	Up to 38c/40mm	Up to 32mm
Seatpost	S-Works Pave (FACT Carbon)	—
Brand	CVNRDGH	XOTORQ
Manufacturer	CVNRDGH	XOTORQ
Color	Normal	Various
Weight	2.20462262 Pounds	Approximately 6.62 kg (14.6 lbs) for a complete bike (size 52cm, Dura-Ace Di2 build)
Height	0.393700787 inches	Frame sizes vary; tire clearance up to 32mm
Frame Material	—	S-Works Tarmac SL8 FACT 12r Carbon
Wheelset	—	Roval Rapide CLX II tubeless-ready
Bottom Bracket	—	Threaded BB
Cockpit	—	Roval Rapide Cockpit (integrated bar/stem)

Feature Checklist

Roubaix SL8: 4|Tarmac SL8: 3

Feature	Roubaix SL8	Tarmac SL8
Endurance
Smooth ride
Still fast
【Convex Mirror Sesign】: Featuring a convex mirror design, it offers a wider field of view and clearer visibility, allowing you to avoid frequent glances back at traffic conditions and preclude accidents caused by turning without checking the road ahead.
Race bike
Ultra light
Very expensive
【High-Quality Materials】: Constructed from ABS and silicone rubber materials, it offers wear resistance and scratch protection. Even with prolonged use, the mirror surface maintains clear visibility.

Features extracted from Reddit highlights and enrichment data

⚔️Head to Head

Metric	Specialized Roubaix SL8	Specialized S-Works Tarmac SL8
Reddit Score	82%	63%
Mentions	114	113
Sentiment	+ 52- 9	+ 38- 28

Where to Buy

Specialized Roubaix SL8

Price unavailableCheck prices

All-time low price!

Specialized S-Works Tarmac SL8

Price unavailableCheck prices

All-time low price!

Prices may vary. We may earn a commission from purchases made through these links.

Specialized Roubaix SL8Check prices Specialized S-Works Tarmac SL8Check prices

Frequently Asked Questions

Which is better, Specialized Roubaix SL8 or Specialized S-Works Tarmac SL8?

Based on 227 Reddit comments, Specialized Roubaix SL8 is the preferred choice with 82% positive sentiment vs Specialized S-Works Tarmac SL8's 63%. Specialized Roubaix SL8 leads by 19 percentage points.

Should I buy Specialized Roubaix SL8 or Specialized S-Works Tarmac SL8?

If you want the safer choice based on community sentiment, Specialized Roubaix SL8 has stronger approval ratings (82% vs 63%). However, Specialized S-Works Tarmac SL8 may still be better depending on your specific needs, budget, or use case.

What do Redditors love about Specialized Roubaix SL8?

Reddit users highlight: Endurance. Smooth ride. Still fast. With 114 mentions and 82% approval, it's a well-regarded choice in the community.

What do Redditors say about Specialized S-Works Tarmac SL8?

Reddit users highlight: Race bike. Ultra light. Aero. With 113 mentions and 63% approval, it remains a popular alternative.

How many Reddit reviews were analyzed?

This comparison analyzed 227 Reddit comments: 114 about Specialized Roubaix SL8 and 113 about Specialized S-Works Tarmac SL8. Data was sourced from Which Bike community discussions.

How accurate are these ratings?

Our sentiment analysis is approximately 80-85% accurate compared to manual review. Well-discussed products with many mentions tend to have more reliable scores than niche items with fewer data points.

Why trust Reddit over professional reviews?

Reddit users bought products with their own money and have no incentive to mislead. You're seeing hundreds of real opinions across different use cases, not just one reviewer's take. This crowdsourced approach surfaces both common praise and recurring complaints.

127 Reddit opinions analyzed · Last updated 7/16/2026

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