Merida Reacto 10k AXS vs Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v

Merida

Reacto 10k AXS

Argon 18

Sum Pro Shimano Dura-ace Di2 R9250 12v

Top of the rangeAeroCarbon700c2027

Top of the rangeAeroCarbon700c2026

Close on the specs and the list price: here are their 16 differences, line by line.

MeridaMerida Reacto 10k AXS

List price £9,500

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

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

At a glance

Differences only

Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v is 790 g lighter than Merida Reacto 10k AXS (brand figures).
Merida Reacto 10k AXS has the higher-range groupset: SRAM Red AXS, against Shimano Dura-Ace Di2.
Merida Reacto 10k AXS has the shorter lowest gear: 12 km/h at 90 rpm, against 14 km/h.
Merida Reacto 10k AXS is the newer model (2027).

Key specs6 differences

List price £9,500 –

Model year 2027 2026

Weight 7.2 kg 6.41 kg −790 g

Frame Carbon

As printed

cadre REACTO CF5 V, carbone

Carbon

As printed

optimize frame topology and carbon layup

Wheelset 700c · Reynolds BL 60 Pro

As printed

Reynolds BL 60 Pro, carbon

700c · Scope Artech A4

Drivetrain 2×12 2×12

Groupset SRAM Red AXS Higher range

As printed

Sram Red AXS, electronic, 12 speed

Shimano Dura-Ace Di2

As printed

Rear Derailleur: Shimano Dura-Ace Di2 R9250

Brake model SRAM Red AXS, 2 pistons, hydrauliques Higher range Shimano Dura-Ace Di2 R9270

Seatpost MERIDA REACTO V S-FLEX SUM specific (included with frameset)

Prices

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

Merida Reacto 10k AXS

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

Character

The bike at a glance: the ground it is made for, how it handles, its gears and its equipment, beside the other bikes of its kind.

Reacto 10k AXS · Road bike rather for smooth ground, rather nimble, long gearing, very high equipment.
Sum Pro Shimano Dura-ace Di2 R9250 12v · Road bike average gearing, very high equipment.

Terrain

EasyDemanding

Handling

NimbleStable

Gearing

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

Merida Reacto 10k AXS12 km/h - 58 km/h
Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v14 km/h - 54 km/h

Easiest gear (climbing)Hardest gear (descending)

Merida Reacto 10k AXSArgon 18 Sum Pro Shimano Dura-ace Di2 R9250 12vother aero road bikes

Components and specs

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

Ride type

Ride type Aero ^{°Value not published by the brand} Aero

As printed

Pro Lightweight Aero Race Bike

Frame and fork1 difference

Fork Carbon

As printed

fourche MERIDA REACTO CF5 V DISC, carbone

–

Frame weight 950 g –

Max tyre clearance 32 mm 32 mm

Bottom bracket Pressfit 86.5 CeramicSpeed BB86 Shimano Coated

Cable routing– Fully integrated

As printed

Integrated Cables: Yes

Drivetrain6 differences

Groupset brand SRAM

As printed

Sram Red AXS

Shimano

As printed

Shimano Dura-Ace Di2 R9250

Shifting Electronic, wireless Electronic, wired

As printed

Shifters: Shimano Dura-Ace Di2 R9270

Chainrings 2 ^{°Value not published by the brand} 2 ^{°Value not published by the brand}

Gears at the back 12 12 ^{°Value not published by the brand}

Chainring teeth SRAM Red, 50-37, Power Meter Higher range

As printed

Sram Red, 50-37 teeth, Power Meter

Shimano Dura-Ace R9200 52/36

Cassette SRAM Red XG-1290, 10-36 Higher range

As printed

Sram Red XG-1290, 10-36 teeth, 12 speed

Shimano Dura Ace CS-R9200 11-30

Rear derailleur Sram Red AXS Higher range Shimano Dura-Ace Di2 R9250 ^{°Value not published by the brand}

Shifters Sram Red AXS Higher range Shimano Dura-Ace Di2 R9270 ^{°Value not published by the brand}

Power meter fitted yes –

Brakes1 difference

Brakes Hydraulic disc

As printed

Sram Red / Sram Red AXS, 2 piston, hydraulic

Hydraulic disc ^{°Value not published by the brand}

As printed

Shimano Dura-Ace Disque hydraulique

Front rotor 160 mm 160 mm

Rear rotor 160 mm 140 mm −20 mm

Wheels and tyres1 difference

Wheel size 700c / 29" 700c / 29" ^{°Value not published by the brand}

Rims Carbon Carbon ^{°Value not published by the brand}

Rim depth 60 mm –

Rim inner width 21 mm –

Tubeless ready yes –

Tyres Continental Grand Prix 5000S TR 700x28C

As printed

Continental Grand Prix 5000S TR, 700x28C, fold

Challenge Criterium RS TLR 28c Black

Tyre width fitted 28 mm 28 mm

Cockpit and seatpost2 differences

Handlebar width 400 mm –

Handlebar MERIDA TEAM CW 1P ^{°Value not published by the brand} Ciclovation LEATHER TOUCH Tornado Gloss ^{°Value not published by the brand}

Stem MERIDA TEAM CW AERO ^{°Value not published by the brand}–

Seatpost model MERIDA REACTO V S-FLEX SUM specific (included with frameset) ^{°Value not published by the brand}

° Value not published by the brand

Geometry

A size per bike (the nearest to the first one's at first), the differences measured from the reference bike.

Size of Reacto 10k AXS

Differences measured from

Reacto 10k AXS · M

Stack and reach

Reacto 10k AXS · M Reacto 10k AXS · M — Reach (mm) 395 · Stack (mm) 557

Geometry

Size M –

Reach 395 mm –

Stack 557 mm –

Top tube (effective) 560 mm –

Seat tube 540 mm –

Head tube 140 mm –

Head angle 73.5° –

Seat angle 73.5° –

Chainstays 410 mm –

Wheelbase 992 mm –

Standover 810 mm –

BB drop 66 mm –

Fork offset 45 mm –

Where to buy them

Merida Reacto 10k AXS
List price £9,500
Its full spec sheet Compare the whole Merida Reacto range
Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v
Its full spec sheet Compare the whole Argon 18 Sum range

Compare the whole Merida Reacto range Compare the whole Argon 18 Sum range

Frequently asked questions

Which is lighter, Merida Reacto 10k AXS or Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v?

Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v weighs 6.41 kg, Merida Reacto 10k AXS 7.2 kg, as their brands give them.

What groupset do Merida Reacto 10k AXS and Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v come with?

Merida Reacto 10k AXS: SRAM Red AXS. Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v: Shimano Dura-Ace Di2.

Compare other models

Merida Reacto 10k AXS vs Argon 18 Sum Pro Shimano Dura-ace Di2 R9250 12v

At a glance

Prices

Character

Gearing

Components and specs

Geometry

Stack and reach

Where to buy them

Frequently asked questions

Other comparisons