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Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v vs Orbea Orca Aero M20ILTD Ultegra Di2 R8150

Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v, side view

Argon 18

Sum Pro Shimano Ultegra Di2 R8150 12v

Orbea Orca Aero M20ILTD Ultegra Di2 R8150, side view

Orbea

Orca Aero M20ILTD Ultegra Di2 R8150

Top of the rangeAeroCarbon700c2026
Top of the rangeAeroCarbon700c2026

Close on the specs and the list price: here are their 11 differences, line by line.

Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v, side viewArgon 18Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v
Orbea Orca Aero M20ILTD Ultegra Di2 R8150, side viewOrbeaOrbea Orca Aero M20ILTD Ultegra Di2 R8150

At a glance

Key specs3 differences
Model yearSame for all 2026 2026
FrameSame for all Carbon
As printed

optimize frame topology and carbon layup

 Carbon
As printed

Orbea Orca Aero Carbon OMX disc, monocoque construction, HS 1,5"

Wheelset 700c · DT Swiss ARC1400 Dicut Wheelset 700c · OQUO Road Performance RP50LTD
DrivetrainSame for all 2×12 2×12
GroupsetSame for all Shimano Ultegra Di2
As printed

Rear Derailleur: Shimano Ultegra Di2 R8150

 Shimano Ultegra Di2
As printed

Shimano Ultegra Di2 R8150 / Shimano ST-8170

Brake model Shimano Ultegra Di2 R8170 Shimano R8170 Hydraulic Disc
Seatpost SUM specific (included with frameset) OC Road Aero RA10 Carbon Ultralight, SB0/25, w/Micro tilt adjustment

Prices

Each model's retailers, delivered to your country, and their prices over time.

Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v

Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v

Orbea Orca Aero M20ILTD Ultegra Di2 R8150

Orbea Orca Aero M20ILTD Ultegra Di2 R8150

Character

  • Sum Pro Shimano Ultegra Di2 R8150 12v · Road bike average gearing, very high equipment.
  • Orca Aero M20ILTD Ultegra Di2 R8150 · aero road bike, carbon frame, 700c wheels, 2×12 drivetrain, top of the range equipment

Gearing

Speed in the lowest and the highest gear at 90 rpm: lower on the left climbs easier, higher on the right goes faster.

  • Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v14 km/h - 54 km/h
Easiest gear (climbing)Hardest gear (descending)
Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12vOrbea Orca Aero M20ILTD Ultegra Di2 R8150

Components and specs

Every spec line by line; the higher range of a component is marked. The technical groups are folded.

Ride type
Ride typeSame for all Aero
As printed

Pro Lightweight Aero Race Bike

 Aero
As printed

Aero 360º - Aérodynamique sous tous les angles

Frame and fork2 differences
Fork–Not given Carbon °Value not published by the brand
Max tyre clearance 32 mm 37 mm Best of the comparison+5 mm
Bottom bracket CeramicSpeed BB86 Shimano Coated 386EVO, 86mm, press-fit °Value not published by the brand
Cable routing Fully integrated
As printed

Integrated Cables: Yes

–Not given
Drivetrain3 differences
Groupset brandSame for all Shimano
As printed

Shimano Ultegra Di2 R8150

 Shimano
As printed

Shimano Ultegra Di2 / Shimano Ultegra Di2 R8150

ShiftingSame for all Electronic, wired
As printed

Shifters: Shimano Ultegra Di2 R8170

 Electronic, wired
ChainringsSame for all 2 °Value not published by the brand 2 °Value not published by the brand
Gears at the backSame for all 12 °Value not published by the brand 12
Chainring teeth Shimano Ultegra R8100 52/36 Shimano Ultegra R8100 36x52T
Cassette Shimano Ultegra CS-R8100 11-30 Shimano Ultegra R8100 11-34T 12S
Rear derailleurSame for all Shimano Ultegra Di2 R8150 °Value not published by the brand Shimano Ultegra Di2 R8150 °Value not published by the brand
Shifters Shimano Ultegra Di2 R8170 °Value not published by the brand Shimano ST-8170 °Value not published by the brand
Brakes
BrakesSame for all Hydraulic disc °Value not published by the brand
As printed

Shimano Ultegra Disque hydraulique

 Hydraulic disc
As printed

Shimano R8170 Hydraulic Disc

Front rotorSame for all 160 mm 160 mm
Rear rotorSame for all 140 mm 140 mm
Wheels and tyres2 differences
Wheel sizeSame for all 700c / 29" °Value not published by the brand 700c / 29"
As printed

Vittoria Corsa N.Ext G2.0 TLR 700x29c

RimsSame for all Carbon °Value not published by the brand Carbon °Value not published by the brand
Tyres Vittoria Corsa Pro TLR 28c Vittoria Corsa N.Ext G2.0 TLR 700x29c
Tyre width fitted 28 mm 29 mm +1 mm
Cockpit and seatpost2 differences
Handlebar Ciclovation LEATHER TOUCH Tornado Gloss °Value not published by the brand Integrated Bar and Stem OC SH-RA10, Road Aero Carbon, Reach 80, Drop 125 °Value not published by the brand
Seatpost model SUM specific (included with frameset) °Value not published by the brand OC Road Aero RA10 Carbon Ultralight, SB0/25, w/Micro tilt adjustment °Value not published by the brand

° Value not published by the brand

Where to buy them

Compare the whole Argon 18 Sum rangeCompare the whole Orbea Orca range

Frequently asked questions

What groupset do Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v and Orbea Orca Aero M20ILTD Ultegra Di2 R8150 come with?

Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v: Shimano Ultegra Di2. Orbea Orca Aero M20ILTD Ultegra Di2 R8150: Shimano Ultegra Di2.

Other comparisons

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