Cervelo R5 Ultegra Di2 Road Bike 2026

R5 has one job—get to the top, fast. But for all the glory and fanfare that comes with a summit finish, they’re rarely the only climb of the day. And while a race isn’t usually won on a descent, they can certainly be lost. A climbing bike that can't carve a hairpin is a bit like a cup of decaf coffee. This is the fourth iteration of the R5, and while weight and stiffness have varied over the years, the handling, poise, and unmatched prowess on a descent have been consistent since day one.

Just 5.97kg 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.  

Specifications:

• Fork  -  Cervélo All-Carbon, Tapered R5 Fork
• 1-piece Handlebar/Stem  -  Cervélo HB18 Carbon
• Handlebar Sizing  -  Size 48 - 36cm, Size 51 - 38cm, Size 54 - 40cm, Size 56 - 40cm, Size 58 - 40cm, Size 61 - 40cm
• Stem Sizing  -  Size 48 - 80mm, Size 51 - 90mm, Size 54 - 100mm, Size 56 - 100mm, Size 58 - 110mm, Size 61 - 120mm
• Seatpost  -  Cervélo SP33 Carbon
• Seatpost Sizing  -  Size 48 - 0mm, Size 51 - 0mm, Size 54 - 0mm, Size 56 - 0mm, Size 58 - 15mm, Size 61 - 15mm
• Saddle  -  Prologo Nago R4 PAS Tirox Lightweight
• Bottom Bracket  -  FSA, BBright thread together for 24mm spindle
• Headset  -  FSA IS2 1-1/4, 45° x 45° / 1-1/2, 36° x 45°
• Front Thru Axle  -  Cervélo Aero Thru Axle Front, M12x1.5mm, 122mm length
• Rear Thru Axle  -  Cervélo Aero Thru Axle Rear, M12x1.0mm, 169mm length
• Front Wheel  -  Reserve 34TA, DT Swiss 240, 12x100mm, 24H, centerlock, tubeless compatible
• Rear Wheel  -  Reserve 37TA, DT Swiss 240, 12x142mm, HG freehub 24H, centerlock, tubeless compatible
• Tires  -  Vittoria Corsa Pro Speed TLR G2.0 700x26c
• Shifter/Brake Levers  -  Shimano Ultegra, R8170
• Crankset  -  Shimano Ultegra, R8100, 52/36T
• Power Meter  -  4iiii Precision Pro, GEN3+ Dual Sided
• Crank Sizing  -  Size 48 - 165mm, Size 51 - 165mm, Size 54 - 170mm, Size 56 - 170mm, Size 58 - 172.5mm, Size 61 - 172.5mm
• Chain  -  Shimano M8100
• Cassette  -  Shimano Ultegra, R8100, 11-34T, 12-Speed
• Front Derailleur  -  Shimano Ultegra, R8150
• Rear Derailleur  -  Shimano Ultegra, R8150
• Brake Rotors  -  Shimano CL800 Centerlock
• Accessories  -  Cervélo Front Computer/Accessory Mount 887, Cervélo Rear Accessory Mount

Specifications are subject to change without notice

Extras: Hand wax $30. Base Weld & Epox Repair billed at 1/4 hour $25. Our hourly rate is $100.

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1. Can I pick this item up at the Philbrick’s store?
Yes. All products can be ordered online and picked up at our Dover, NH store. Choose Local Pickup during checkout and we’ll notify you when your order is ready.

2. Do you assemble bikes purchased online?
Yes. Bikes purchased through Philbrick’s can be professionally assembled by our in-store technicians so they’re ready to ride when you pick them up.

3. Can I get help choosing the right size or model?
Absolutely. Our staff are experienced riders and can help you choose the correct size, fit, and model. Feel free to call or stop by the store for personalized guidance.

4. Do you offer bike fitting services?
Yes. We offer professional bike fitting services to help ensure comfort, performance, and injury prevention.

5. Can you service equipment purchased from your website?
Yes. Our service department can tune, repair, and maintain bikes and gear purchased from Philbrick’s.

6. How long does local pickup take?
Most orders are ready within 1–2 business days, depending on assembly or service requirements. We’ll email you as soon as your order is ready.

7. Can I return or exchange items at the store?
Yes. Online purchases from Philbrick’s can be returned or exchanged at our Dover, NH location in accordance with our return policy.

8. Do you carry products in the store that aren’t listed online?
No, all products are listed online.

9. Can I speak with someone before placing an order?
Of course. Our team is happy to answer questions about products, sizing, compatibility, or availability before you purchase. Call the store at your convenience. 603-742-9333

10. Where is Philbrick’s located?
Philbrick’s is located in Dover, New Hampshire, serving riders throughout the Seacoast region including Portsmouth, Hampton, and surrounding communities.