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Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v vs Wilier Filante SLR S50 Dura-ace Di2

Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v, side view

Argon 18

Sum Pro Shimano Dura-ace Di2 R9250 12v

Wilier Filante SLR S50 Dura-ace Di2, side view

Wilier

Filante SLR S50 Dura-ace Di2

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 Dura-ace Di2 R9250 12v, side viewArgon 18Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v
Wilier Filante SLR S50 Dura-ace Di2, side viewWilierWilier Filante SLR S50 Dura-ace Di2

At a glance

  • Wilier Filante SLR S50 Dura-ace Di2 has the shorter lowest gear: 12 km/h at 90 rpm, against 14 km/h.
Key specs3 differences
Model yearSame for all 2026 2026
Weight 6.41 kg –Not given
FrameSame for all Carbon
As printed

optimize frame topology and carbon layup

 Carbon
As printed

FILANTE SLR - CARBON MONOCOQUE HUS MOD + LIQUID CRYSTAL POLYMER

Wheelset 700c · Scope Artech A4 700c · MICHE S 50 CARBON °Value not published by the brand
DrivetrainSame for all 2×12 2×12
GroupsetSame for all Shimano Dura-Ace Di2
As printed

Rear Derailleur: Shimano Dura-Ace Di2 R9250

 Shimano Dura-Ace Di2
As printed

SHIMANO DURA ACE Di2 2x12 R9270

Brake model Shimano Dura-Ace Di2 R9270 Higher range SHIMANO DURA-ACE BR-R9270 °Value not published by the brand
Seatpost SUM specific (included with frameset) WILIER FILANTE CARBON CUSTOM MADE -15 mm

Prices

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

Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v

Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v

Wilier Filante SLR S50 Dura-ace Di2

Wilier Filante SLR S50 Dura-ace Di2

Character

  • Sum Pro Shimano Dura-ace Di2 R9250 12v · Road bike average gearing, very high equipment.
  • Filante SLR S50 Dura-ace Di2 · Road bike short gearing, very high 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 Dura-ace Di2 R9250 12v14 km/h - 54 km/h
  • Wilier Filante SLR S50 Dura-ace Di212 km/h - 52 km/h
Easiest gear (climbing)Hardest gear (descending)
Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12vWilier Filante SLR S50 Dura-ace Di2

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

Filante SLR is an extremely lightweight aerodynamic bicycle

Frame and fork2 differences
Fork–Not given Carbon °Value not published by the brand
Frame weight–Not given 870 g
Max tyre clearance 32 mm Best of the comparison 30 mm −2 mm
Bottom bracket CeramicSpeed BB86 Shimano Coated MICHE INTEGRALE PRESSFIT 86.5X41 °Value not published by the brand
Cable routing Fully integrated
As printed

Integrated Cables: Yes

–Not given
Drivetrain4 differences
Groupset brandSame for all Shimano
As printed

Shimano Dura-Ace Di2 R9250

 Shimano
As printed

SHIMANO DURA ACE Di2 2x12 R9270

ShiftingSame for all Electronic, wired
As printed

Shifters: Shimano Dura-Ace Di2 R9270

 Electronic, wired
As printed

SHIMANO DURA ACE Di2 R9270

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 Dura-Ace R9200 52/36 Shimano Dura-Ace 50-34T
As printed

SHIMANO DURA-ACE FC-R9200 50-34T

Cassette Shimano Dura Ace CS-R9200 11-30 Shimano Dura-Ace 11-34T
As printed

SHIMANO DURA-ACE CS-R9200-12 11-34T

Rear derailleur Shimano Dura-Ace Di2 R9250 °Value not published by the brand SHIMANO DURA-ACE Di2 FD-R9250 °Value not published by the brand
Shifters Shimano Dura-Ace Di2 R9270 °Value not published by the brand SHIMANO DURA-ACE Di2 ST-R9270 °Value not published by the brand
Brakes
BrakesSame for all Hydraulic disc °Value not published by the brand
As printed

Shimano Dura-Ace Disque hydraulique

 Hydraulic disc °Value not published by the brand
As printed

Shimano Dura-Ace Disque hydraulique

Front rotor 160 mm –Not given
Rear rotor 140 mm –Not given
Wheels and tyres1 difference
Wheel sizeSame for all 700c / 29" °Value not published by the brand 700c / 29" °Value not published by the brand
RimsSame for all Carbon °Value not published by the brand Carbon °Value not published by the brand
Tyres Challenge Criterium RS TLR 28c Black VITTORIA CORSA PRO 700X28c °Value not published by the brand
Tyre width fittedSame for all 28 mm 28 mm °Value not published by the brand
Cockpit and seatpost2 differences
Handlebar Ciclovation LEATHER TOUCH Tornado Gloss °Value not published by the brand F BAR INTEGRATED CARBON CUSTOM MADE °Value not published by the brand
Seatpost model SUM specific (included with frameset) °Value not published by the brand WILIER FILANTE CARBON CUSTOM MADE -15 mm °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 Wilier Filante range

Frequently asked questions

What groupset do Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v and Wilier Filante SLR S50 Dura-ace Di2 come with?

Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v: Shimano Dura-Ace Di2. Wilier Filante SLR S50 Dura-ace Di2: Shimano Dura-Ace Di2.

Other comparisons

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