CerveloS5
Izcelsme
Cervelo S-sērijas pirmsākumi meklējami 2011. gadā, kad tika laists klajā S5 kā pilnīgi jauns aerodinamisks šosejas velosipēds, aizstājot oriģinālo Soloist līniju. Izstrādāts, balstoties uz vēja tuneļa datiem no Cervelo pašu laboratorijas, S5 bija bēdīgi slavens ar savu agresīvo, kamm-tail tipa rāmi un polarizējošo V-stūri, kas kļuva par tā vizuālo parakstu. 2025. gada paaudze, kuru brauc Jonas Vingegaard no Team Visma-Lease a Bike, atteicās no V-stūres par labu viengabala HB19 stūrei ar Plus-Four izplešanos, palielināja riepu klīrensu līdz 29-32 mm, un tiek apgalvots, ka tā ietaupa 6,3 vatus pie 45 km/h, salīdzinot ar iepriekšējo modeli, ja to lieto kopā ar atbilstošo Reserve riteņu komplektu. Tas joprojām ir zīmola bezkompromisa aerodinamiskais flagmanis un velosipēds, pēc kura Visma sniedzas no bruģa līdz kalnu finišiem.
Specifikācijas
- Rāmis
- Full carbon aero monocoque, ~1006 g frame + 465 g fork (56 cm); BBRight pressfit BB; truncated aero tube profiles
- Svars
- kg
- Transmisija
- Shimano Ultegra Di2 to Dura-Ace Di2 / SRAM Force AXS to RED AXS; flagship build Dura-Ace R9200 2×12, 54/40T crankset, 11-34T cassette
- Bremzes
- Hydraulic disc, flat-mount; flagship Shimano Dura-Ace R9200 with RT-CL900 rotors, 160 mm front/rear
- Riteņi
- Flagship: Reserve 57/64 deep-section carbon with DT Swiss 180 Dicut hubs (ceramic bearings); ~24-25 mm internal hooked rims
Verdikts
- Among the fastest aero road bikes ever lab-tested (BikeRadar/Cyclingnews); claimed ~6.3 W saving at 45 km/h over the previous gen with matched Reserve wheels
- Lighter than the outgoing S5 (~124 g lighter frameset) yet very stiff — genuine do-everything race bike Visma riders pick even on mountain stages
- Modern 34 mm tire clearance and swappable-setback SP34 seatpost — far more versatile than older aero superbikes
- Stable, predictable handling and confident cornering thanks to consistent 405 mm chainstays and low BB
- HB19 cockpit with flared Plus-Four drops gives extra control on fast descents
- Very expensive — flagship Dura-Ace build ~€14,000, and even the frameset entry point is ~€6,000
- Ride feel is calm/placid and somewhat disconnected from the road; lacks snap at low speed and needs rider input to come alive
- Deep rims + wide flat aero tubes make it noticeably twitchy in crosswinds, pushed sideways even by light gusts
- Integrated HB19 cockpit is not swappable at purchase — changing fit means buying a whole new one-piece bar/stem
- Stock 54/40T chainrings are overgeared for most amateur riders, and seatpost setback can't be changed for free at point of sale
Kam piemērots
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