V5Rs
vsTarmac
Pogačar's race weapon, or the populist benchmark.
The V5Rs is a single-tier racing tool built to satisfy one rider. The Tarmac SL8 spans $4.7k to $13.5k and aims to satisfy everyone.
V5Rs
- WorldTour pedigree — this is the actual race weapon Tadej Pogačar rides, refined around his demands.
- Surefooted at speed — reviewers consistently praise its 'commit and be rewarded' descending and high-speed stability.
- Wider real-world tire clearance — officially 32 mm, but reviewers confirm 34 mm fits, giving genuine versatility.
- Single carbon grade and an $11,000 entry point — no Pro or Expert tier exists.
- No power meter on any stock build, including the $14,000 Dura-Ace flagship.
Tarmac
- Power meter standard on every build from S-Works ($13.5k) down to the Expert ($6.5k) — Colnago ships none.
- Two carbon grades — FACT 12r at the top, FACT 10r on Pro/Expert (~100 g heavier, often described as more forgiving).
- Genuine breadth — $4,699 to $13,499, seven sizes, with WorldTour pedigree on Soudal-Quick-Step and SD Worx.
- Stock 26 mm S-Works Turbo tires are widely panned and notoriously hard to remove from the rim.
- Integrated Roval Rapide cockpit limits adjustability; swapping it post-purchase is an expensive aftermarket job.
Editor’s analysis
Two flagship race bikes that hit the same finish lines from completely different starting points — one is a pro-first refusal, the other is a populist embrace.
On the World Tour these bikes look like peers — sub-7 kg flagships, integrated cockpits, 32 mm tire clearance, both winning Grand Tour stages in the same season. Spend any time with the lineups and the philosophies pull apart fast. The Colnago V5Rs exists in one grade — top-shelf monocoque carbon, 685 g unpainted (size 485) — and starts at $11,000. There is no Pro tier, no 105 build, no entry point. The Specialized Tarmac SL8 spans seven sizes, two carbon grades (FACT 12r and FACT 10r), and starts at $4,699 with NEW SRAM Rival AXS. One bike is built for the racer who already owns the bike. The other wants to be every racer's first serious purchase.
The geometry tells a similar story. At their fit-picked sizes for a 5'8" rider — Colnago 510, Tarmac 54 — the Colnago sits 13 mm taller in the stack (557 vs 544 mm) with 6 mm more reach (390 vs 384 mm), a slacker 72.5° head tube, and a slightly steeper 74.5° seat tube. The Tarmac runs a sharper 73° head tube, shorter 384 mm reach, and the same 410 mm chainstays Specialized has used across every SL8 size. Reviewers describe the Colnago as a 'commit and be rewarded' bike that turns measured low-speed handling into surefooted descents; the Tarmac is consistently called 'flickable,' 'nimble,' even 'telepathic' through corners.
Frame engineering converges more than the marketing admits. Colnago shaved 146 g from the V5Rs frame kit versus the V4Rs and claims a 9-watt drag reduction at 50 km/h. Specialized claims the SL8 is 16.6 seconds faster than the SL7 over 40 km at 45 km/h, and external wind-tunnel data puts it within ~4 W of the dedicated aero S5. Both moved to BSA threaded bottom brackets. Both bury the Di2 battery in the downtube — the Colnago requires pulling the cranks to access it. Both ship with one-piece integrated cockpits that cost ~$450+ to swap.
The real divergence is the value pitch. Specialized includes a power meter standard on every SL8 build from S-Works down to the Expert. Colnago doesn't ship a power meter on any V5Rs build, even the $14,000 Dura-Ace flagship — multiple reviewers (Velo, Bicycling) flag this as a glaring omission for a bike at this price. The Specialized Tarmac SL8 is the bike you buy when you want the most engineered race platform per dollar. The Colnago V5Rs is the bike you buy when you want the bike Tadej Pogačar rides, and you've decided that's enough.
Where the builds differ.
Comparing our editor's-pick builds side-by-side. Winners highlighted row-by-row — lower price and weight, and the better-spec component, each mark a point.
Build variants & pricing
The Tarmac SL8 covers $4,699 to $13,499 across two carbon grades. The V5Rs is one frame, four real builds, all north of $11,000.
Editor's picks compare the Dura-Ace Di2 builds on each side — the closest like-for-like, and the only Colnago tier where electronic-shifting parity is possible. Specialized offers Pro and Expert tiers below this price; Colnago does not.
How they fit, how they steer.
Compared at the fit-picked sizes for a 5'8" rider — Colnago 510, Tarmac 54. The Colnago sits 13 mm taller in the stack (557 vs 544) and 6 mm longer in reach (390 vs 384), with a slacker 72.5° head tube. The Tarmac is the more aggressive geometry at this fit.
Which size should I buy?
Size recommendations from stack, reach, and effective top tube. The Tarmac SL8 runs seven sizes (44–61) — significantly more granular than the Colnago's four (420, 455, 485, 510 in this range).
→These are starting points. Flexibility, riding style, and preferred position all shift the answer — if you’re between sizes, a professional fit beats a chart.
What the magazines said.
Published reviews from trusted cycling outlets. Click through for the full write-up.
Which one should you buy?
If you want the bike Pogačar races and the price doesn't move you, buy the V5Rs. If you want the most engineered race platform per dollar, the Tarmac SL8.
V5Rs
If you want the literal tool the world's best racer uses, and you value that exclusivity over every value comparison the spreadsheet will throw at you. The V5Rs delivers technically brilliant ride quality, surefooted descending, and a frame that feels alive at tempo. Just don't expect a power meter in the box.
Tarmac
If you want a single race bike that climbs, sprints, and holds its own in the wind tunnel against dedicated aero rigs — and you'd like a power meter, two carbon grades, and a sub-$5k entry point. The SL8 has won the populist benchmark debate; the Tarmac is the default for a reason.
Questions buyers actually ask.
Short answers to the things we get emailed about most often.
01Why is the Colnago V5Rs so much more expensive?
Colnago sells the V5Rs in a single frame grade — top-tier monocoque carbon, 685 g unpainted in size 485 — with no Pro, Expert, or alloy step-down. Builds start at $11,000 (SRAM Force) and run to $14,000 (Dura-Ace Di2 / Campagnolo Super Record). Specialized offers the same flagship FACT 12r carbon at $13,499, but also sells the FACT 10r frame on the SL8 Pro ($8,499) and Expert ($6,499–$6,999), and the SL8 Comp at $4,699.
Reviewers (Velo, Bicycling) consistently note the Colnago premium reflects exclusivity and the Pogačar association more than incremental performance — there's no second or third tier available.
02Which is faster on flat roads?
Both make aero claims, neither is a dedicated aero bike. Colnago published a 9-watt drag reduction at 50 km/h on the V5Rs versus the V4Rs, with a 13% slimmer frontal area. Specialized claims the SL8 is 16.6 seconds faster over 40 km at 45 km/h versus the SL7. External wind-tunnel data cited in SL8 reviews puts it within ~4 W of dedicated aero bikes like the Cervélo S5 (209 W vs 205 W at 45 km/h).
In practice the two are very close — close enough that wheel choice and tire setup matter more than the frame difference.
03Which climbs better?
Both are sub-7 kg in their flagship trims. The Specialized S-Works SL8 weighs ~6.67 kg (size 56, Dura-Ace) per the brand's published builds. The Colnago V5Rs frame is 685 g unpainted in size 485 — same as the S-Works frame at 685 g (size 56) — and complete bikes are quoted by reviewers in the 6.68–6.9 kg range.
Both feel 'rock-solid' at the bottom bracket per multiple reviews. Geometry differs slightly — at the fit-picked sizes, the Colnago's slacker 72.5° head tube and steeper seat tube favor a forward, dance-on-the-pedals climbing posture; the Tarmac's 73° head tube is sharper and more nimble on technical climbs.
04What's the maximum tire clearance?
Colnago V5Rs: 32 mm officially, with multiple reviewers (Westbrookcycles, Bicycling) confirming a true 34 mm tire fits. UAE Team riders typically run 28 mm or 30 mm.
Specialized Tarmac SL8: 32 mm officially. The SL8 ships with 26 mm S-Works Turbo tires stock — widely criticized as too narrow — and most reviewers recommend immediately upgrading to a 28 mm or 30 mm tubeless setup.
05Do they come with power meters?
Tarmac SL8: Yes — Specialized includes a power meter on every SL8 build from S-Works ($13,499) down to the Expert ($6,499–$6,999). 4iiii on Shimano builds, Quarq or SRAM E1 integrated on SRAM builds.
Colnago V5Rs: No. None of the stock V5Rs builds include a power meter, including the $14,000 Dura-Ace flagship. Velo and Bicycling both flag this as a notable omission for a bike at this price tier.
06How serviceable are the integrated cockpits and Di2 battery?
Both bikes use one-piece integrated cockpits (Colnago CC.01, Roval Rapide) — adjusting stem length or bar width on either platform means buying a new unit, typically $450+, plus a partial bleed.
Both also bury the Di2 battery in the downtube. On the Colnago this is forced by the dramatically narrow seatpost — accessing the battery requires pulling the cranks and bottom bracket. The Tarmac's downtube placement is similar in concept. Battery failures are rare in practice, but routine swaps are noticeably more involved than on bikes with seatpost-mounted batteries.
07Is the Colnago V5Rs available in mechanical shifting?
No. All five V5Rs builds are wireless or electronic-only — Shimano Dura-Ace Di2, Shimano Ultegra Di2, Campagnolo Super Record WRL, SRAM Red eTap AXS, or SRAM Force eTap AXS. There's no mechanical option from Colnago.
The Tarmac SL8 lineup is also fully electronic-only across all builds — Shimano Di2 or SRAM AXS variants only.
08Can I get either as a frameset only?
Yes for both. The Colnago V5Rs frameset is $6,250 USD per Bicycling's review notes. The Specialized S-Works Tarmac SL8 frameset is around $5,500 USD (FACT 12r), with the FACT 10r frameset around $3,500.
For Colnago, reviewers (Velo) actively recommend the frame-only route over Colnago's stock builds, citing limited build flexibility and the missing power meter on completes.
Similar bikes
If your priorities don’t map cleanly onto either of these, one of these adjacent bikes probably fits better.
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The Tarmac's closest 'one bike to rule them all' rival — a similar all-rounder profile with a snappier reputation and notably better stock handlebar widths than the Specialized.
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If you're drawn to the Colnago for Italian heritage and pro-tour cachet, the Dogma F is the other status play — Ineos Grenadiers' weapon, sharp race-day feel, similarly premium pricing.
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Specialissima
Another Italian all-rounder that leans hard into lightness and climbing. More visually expressive than the understated V5Rs, with a similar boutique pedigree at a slightly lower price point.
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