SKU: 70447557490

R5 Ultegra Di2

Sale price$4544.99 Regular price$5049.99
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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22

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Description

R5 Ultegra Di2The R5 is legendary. From the limits shattering R5CA to Wout van Aerts winning day on Mont Ventoux, R5 has been part of Cervelos story for over two decades. This all new R5 is an incredibly light (5. 97kg in RED and Dura Ace builds) road bike thats also stiff enough to compete at the highest levels of professional cyclingas Pauline Ferrand Prevot proved when she rode it to victory at this summers Tour de France Femmes. Its easy enough to make a light

The R5 is legendary. From the limits-shattering R5CA to Wout van Aert’s winning day on Mont Ventoux, R5 has been part of Cervelo’s story for over two decades. This all-new R5 is an incredibly light (5.97kg in RED and Dura-Ace builds) road bike that’s also stiff enough to compete at the highest levels of professional cycling—as Pauline Ferrand-Prevot proved when she rode it to victory at this summer’s Tour de France Femmes. 

It’s easy enough to make a light bike, but to make a light bike that’s stiff enough to accelerate quickly and transfer power from the sport’s biggest motors? That’s another challenge entirely. R5 is the bike for big days in the high mountains of the Tour de France, and the punishingly steep climbs of the Vuelta a Espana. Bikes built for the mountains must not only accelerate rapidly and climb exceptionally, but descend confidently and predictably. While the UCI mandates a minimum weight of 6.8kg, those of us in the ‘mere mortal’ category will benefit from having the lightest road bike on the market.

FEATURES:

  • Just 5.97 Kg in Size 56: The new R5 in a size 56 builds up to just 5.97kg, a full 900 grams under the UCI’s minimum weight limit. The frame is just 651 grams (size 56), and the fork is 298 grams. In addition to the 100g reduction in frame/fork weight, we’ve turned our attention to every single component on the bike, for a total weight reduction of 326g from all Cervelo components.
  • Race-Ready Fit Geometry: While the handling geometry on the new R5 is nearly the same (aside from a small change to BB drop to account for 29mm tires), we changed the fit geometry to match that of the S5. Whether you’re switching between the models like Team Visma|Lease A Bike or R5 is your only ride, you’ll be in a stronger position for the fastest group rides.
  • One-Piece Handlebar/Stem: The all-new HB18 bar/stem not only dropped nearly 150 grams from the weight of the bike, but it also helps the bike be two Watts more aerodynamic than the previous R5. We applied learnings from the S5 handlebar to develop a comfortable, fast, and stiff handlebar, ideal for big days in the saddle and hard fights to the line. All bar sizes are UCI-legal, even in light of the most recent regulations change.  
  • Ultralight Reserve 34|37 SL Wheels: Designed specifically for R5, the all-new Reserve 34|37 SL wheelset helped us drop an additional 60 grams. The new wheels deliver the same strength and stiffness as the old ones, but we refined the layup to save weight without hampering performance. 

SPECS:

Frame Cervélo All-Carbon
Fork Cervélo All-Carbon, Tapered R5 Fork
Rims/Wheels [F] Reserve 34TA, DT Swiss 240, 12x100mm, 24H, centerlock, tubeless compatible [R] Reserve 37TA, DT Swiss 240, 12x142mm, HG freehub 24H, centerlock, tubeless compatible
Hubs N/A
Spokes N/A
Tires Vittoria Corsa Pro Speed TLR G2.0 700x26c
Crankset Shimano Ultegra, R8100, 52/36T
Chainrings 52/36T
Bottom Bracket FSA, BBright thread together for 24mm spindle
Chain Shimano M8100
Front Derailleur Shimano Ultegra, R8150
Rear Derailleur Shimano Ultegra, R8150
Cassette/Rear Cogs
Shimano Ultegra, R8100, 11-34T, 12-Speed
Shifters Shimano Ultegra, R8170
Handlebars Cervélo HB18 Carbon
Stem Cervélo HB18 Carbon
Brakes Shimano Ultegra, R8170 w/ Shimano CL800 Centerlock Rotors
Pedals Sold Separately
Saddle Prologo Nago R4 PAS LIGHTWEIGHT TiRoX
Seat Post Cervélo SP33 Carbon
Extras 4iiii Precision Pro, GEN3+ Dual Sided Power Meter, Cervélo Front Computer/Accessory Mount 887, Cervélo Rear Accessory Mount
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70447557490

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Amazon Customer
Waukegan, US
★★★★★ 5
My dogs are obsessed with this ball
Size: 2-pack, Style: Duo
Great quality! I have 2 boxers that love it and the ball is still intact
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Reviewed in the United States on January 31, 2026
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Dianna H
Belleville, US
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Not Scented, but Dog Approved
Size: 2-pack, Style: Duo
They don't smell like peanut butter or bacon. But our dogs still love them.
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Reviewed in the United States on August 31, 2025
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waragon
Lake Worth, US
★★★★★ 4
If they squeaked, they would be the perfect ball!
Size: 2-pack, Style: Duo
I bought our 15 month old Coton several Chuck-It toys on an Amazon deal. He is incredibly playful, mischievous, and ball/toy obsessed, especially for anything that makes noise. He can also be very destructive so I love how durable most of their products are - they’re among our longest lasting toys and worth every penny. We have yet to take them to the dog park, but they’re a perfect size for sharing in plat time. And they are keeping him busy at home - that’s a good thing. The scent is subtle but strong enough for him I guess because he loves gnawing on them. If they had squeakers, they would be absolutely perfect. Hopefully Chuck-It will see an opportunity for that down the road!
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Reviewed in the United States on May 28, 2026
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Reepeat
Whiting, US
★★★★★ 5
Most durable fetch balls I know of.
Size: 2-pack, Style: Duo
These balls are the biggest balls of them all. Well, not the biggest, but the best. Every other ball she would chew up in short order and I'd be throwing her a floppy piece of rubber. She just wants to fetch, but if it's not bouncing, she can't catch it on the bounce. Got these balls in July and no damage to them. I just ordered another pair, but only because the other two somehow got stuck up in trees. We have some very old and very large oak trees so not so easy to retrieve. Hope they somehow drop someday. But in the meantime, Lassie will be happy with her new ones. Very highly recommended!
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Blonde Aggie
Los Angeles, US
★★★★★ 5
Works great for scent work! Bounce is great for air retrieve!
Size: 2-pack, Style: Duo, Size: 2-pack, Style: Duo
My dog doesn’t know he loves them yet but I do! They are a little softer so when we do air retrieve, I don’t have to worry as much about his teeth! I’m hoping he will learn to find them by smell vs sight. We often play in the evenings and he tends to loose his ball. Love chuck it! Right now, we have about 10 chuck it balls! The tennis balls don’t work for air retrieve! Chuckit does!!! Love the thrower too! Saves my arm!!!!
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Reviewed in the United States on August 6, 2025

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