Riders who want a Colnago that isn't a WorldTour V4Rs. More comfort and presence than the V bikes.
Colnago's lugged-carbon flagship. More of a beautiful all-rounder than a pure V-series race whip, with a size run in Colnago's s-suffix chart.
Climbers and racers who want Cervelo without S5's deep aero cockpit. Soloist is the value race sibling.
Cervelo's lightweight race bike. It does not try to be an S5. Climbing, precise, and still a low WorldTour stack/reach chart.
Racers who want BMC's classic race fit. Roadmachine if you need stack.
BMC's lightweight race bike: steep, precise, and a WorldTour stack/reach reference. Less aero than Teammachine R / Timemachine.
Racers and fast club riders who want the modern Tarmac. If you came off an SL7, check that the stack/reach still matches your size.
The current Specialized race bike: lighter than SL7, still aero, and famously 'it just disappears' if the fit is right. Size by stack/reach — the 54/56 split is where a lot of riders hop.
| Measurement |  ColnagoC68 2024 |  CerveloR5 2025 |  |  SpecializedTarmac SL8 2025 |
|---|---|---|---|---|
| Stackmm | 568 | 568 | 570+2 | 544−24 |
| Reachmm | 390 | 391+1 | 390 | 384−6 |
| Head tube angle° | 72.5 | 73.0+0.5 | 72.5 | 73.0+0.5 |
| Seat tube angle° | 73.0 | 73.0 | 73.5+0.5 | 74.0+1.0 |
| Chainstaymm | 412 | 410−2 | 410−2 | 410−2 |
| Wheelbasemm | 998 | 993−5 | 996−2 | 978−20 |
| BB dropmm | 70 | 74+4 | 69−1 | 72+2 |
| BB heightmm | — | — | — | 268 |
| Standovermm | — | — | — | 768 |
| Part | C68 52s | R5 56 | Teammachine SLR 56 | Tarmac SL8 54 |
|---|---|---|---|---|
| Stem | 90 mm | 100 mm | 100 mm | 100 mm |
| Bar | 400 mm | 420 mm | 420 mm | 420 mm |
| Crank | 170 mm | 172.5 mm | 172.5 mm | 172.5 mm |
I'm lucky enough to own two incredible bikes — the Colnago C68 and the Factor Ostro VAM. They're very different machines, yet I love riding both ...
Colnago C68 Gravel: Great on Gravel... but what about on Road ... Road Bike Review: Colnago C68 with C60 Wheels vs Princeton Wake 6560.
First look at unreleased Cervelo R5 - Visma's not-so-secret new weapon for the mountains · Lightweight ready-to-race · No stone unturned to find every gram · A ...
The BMC Teammachine SLR TWO is a fast, racy bike with aggressive geometry and sharp but well balanced handling – but both its ride quality and its weight suffer ...
The BMC Teammachine SLR 01 Disc Team in detail. Drivetrain Shimano Dura Ace Wheelset DT Swiss PRC 1100 Dicut Brakes Shimano Dura Ace Disc Tires Vitorra Corsa G ...
That spec retails for £8,250 and is said to weigh 7.16kg in a size 56. You can read Sam's full review here. The Specialized Tarmac SL8 will be at the ...
# Specialized Tarmac SL8 Expert #### VERDICT: - Very Good - Quite good - Not so good ### Specialized SL8 Expert: Ride The SL8 was noticeably comfortable, but there was a sense o…
