Specialized Diverge 4 Comp Apex AXS vs Bombtrack Hook Ext C Apex AXS

Specialized

Diverge 4 Comp Apex AXS

Bombtrack

Hook Ext C Apex AXS

High endCarbon700c2026

High endCarbon700c2025

Close on the specs and the list price: here are their 19 differences, line by line.

Specialized Diverge 4 Comp Apex AXS, side view

SpecializedSpecialized Diverge 4 Comp Apex AXS

Bombtrack Hook Ext C Apex AXS, side view

BombtrackBombtrack Hook Ext C Apex AXS

At a glance

Differences only

Specialized Diverge 4 Comp Apex AXS is 200 g lighter than Bombtrack Hook Ext C Apex AXS (brand figures).
Specialized Diverge 4 Comp Apex AXS is the newer model (2026).

Key specs7 differences

Model year 2026 2025

Weight 9.7 kg 9.9 kg +200 g

Frame Carbon

As printed

Specialized Diverge FACT 9r carbon

Carbon

As printed

Toray T800 carbon blend

Suspension Hardtail ^{°Value not published by the brand} Rigid ^{°Value not published by the brand}

Fork model Future Shock 3.2 w/ Smooth Boot, FACT Carbon 12x100mm

As printed

Future Shock 3.2 w/ Smooth Boot, FACT Carbon 12x100mm, thru-axle

Seido MGV full carbon

Wheelset 700c · DT Swiss G540, 24mm internal width

As printed

DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h

700c · Seido Sinus i21, tubeless ready, 32H

Drivetrain 1×12 1×12

Groupset SRAM Apex AXS

As printed

Commande vitesse SRAM Apex AXS / Dérailleur arrière SRAM S1000 Eagle AXS

SRAM Apex AXS

As printed

SRAM Apex AXS 1x, 12-speed

Brake model SRAM Apex, hydraulic disc SRAM Apex flat mount hydraulic disc

As printed

Sram Apex flat mount hydraulic disc brakes

Seatpost Rigid · Roval Terra Carbon Seat Post, 20mm Offset ^{°Value not published by the brand} Rigid · Seido Yew aluminium seatpost, 27.2 mm x 350 mm ^{°Value not published by the brand}

Prices

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

Specialized Diverge 4 Comp Apex AXS

Bombtrack Hook Ext C Apex AXS

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.

Diverge 4 Comp Apex AXS · Gravel bike rather demanding, neutral handling, average gearing, rather high equipment.
Hook Ext C Apex AXS · Gravel bike all-round, neutral handling, rather 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.

Specialized Diverge 4 Comp Apex AXS9 km/h - 48 km/h

Easiest gear (climbing)Hardest gear (descending)

Specialized Diverge 4 Comp Apex AXSBombtrack Hook Ext C Apex AXSother gravel bikes

Components and specs

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

Frame and fork2 differences

Fork Carbon

As printed

FACT Carbon 12x100mm, thru-axle

Carbon

As printed

Seido MGV full carbon

Frame weight– 1,380 g

Max tyre clearance 50 mm 45 mm −5 mm

Axles Thru-axles

As printed

12x142mm thru-axle

Thru-axles

As printed

12 x 100 mm front and 12 x 142 mm rear through axles

Bottom bracket SRAM DUB BSA 68 Wide SRAM DUB T47 85.5 mm

Cable routing Internal

As printed

internal routing

Internal ^{°Value not published by the brand}

As printed

internal hub dynamo cable routing

Seatpost diameter– 27.2 mm

Drivetrain4 differences

Groupset brand SRAM

As printed

SRAM Apex AXS

SRAM

As printed

SRAM Apex AXS 1x

Shifting Electronic, wireless Electronic, wireless ^{°Value not published by the brand}

As printed

SRAM X1 Eagle AXS, clutch, long cage SRAM Apex AXS double tap 1 x 12

Chainrings 1 1

Gears at the back 12 12

Chainring teeth SRAM Apex DUB Wide, 40t SRAM Apex Wide, DUB spindle

Cassette SRAM 12-speed,10-52t SRAM NX Eagle PG-1230 12-speed, 11-50 T

Rear derailleur SRAM S1000 Eagle AXS ^{°Value not published by the brand} SRAM X1 Eagle AXS, clutch, long cage ^{°Value not published by the brand}

Shifters SRAM Apex AXS ^{°Value not published by the brand} SRAM Apex AXS double tap 1 x 12 ^{°Value not published by the brand}

Brakes

Brakes Hydraulic disc

As printed

SRAM Apex, hydraulic disc

Hydraulic disc

As printed

Sram Apex flat mount hydraulic disc brakes

Front rotor– 180 mm

Rear rotor– 160 mm

Wheels and tyres2 differences

Wheel size 700c / 29"

As printed

Tracer TLR All Terrain Gravel Tire 700x45

700c / 29"

As printed

WTB Venture TCS Light 40-622

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

Rim inner width 24 mm –

Tubeless ready yes yes

Tyres Tracer TLR All Terrain Gravel Tire 700x45, Tubeless Ready

As printed

Tracer TLR All Terrain Gravel Tire 700x45, Tan Sidewall, Tubeless Ready

WTB Venture TCS Light 40-622, tubeless ready

Tyre width fitted 45 mm 40 mm −5 mm

Cockpit and seatpost3 differences

Handlebar Specialized Adventure Gear Hover, 103mm drop x 70mm reach x 12º flare ^{°Value not published by the brand} Seido Tackle drop bar, 31.8 mm, 16° flare ^{°Value not published by the brand}

Stem Future Stem, Comp ^{°Value not published by the brand} Seido Scatter forged aluminium stem, -7° ^{°Value not published by the brand}

Seatpost model Roval Terra Carbon Seat Post, 20mm Offset ^{°Value not published by the brand} Seido Yew aluminium seatpost, 27.2 mm x 350 mm ^{°Value not published by the brand}

Weight1 difference

Weighed in size 56

As printed

Poids Taille 56

As printed

9.9 kg (size M)

Max total weight– 115 kg

Mounts and storage

Rack mounts– yes

Mudguard mounts– yes

In-frame storage yes –

° 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 Diverge 4 Comp Apex AXS

Size of Hook Ext C Apex AXS

Differences measured from

Diverge 4 Comp Apex AXS · 49CM
Hook Ext C Apex AXS · S

Stack and reach

Diverge 4 Comp Apex AXS · 49CM Diverge 4 Comp Apex AXS · 49CM — Reach (mm) 365 · Stack (mm) 563
Hook Ext C Apex AXS · S Hook Ext C Apex AXS · S — Reach (mm) 384 · Stack (mm) 564

Geometry15 differences

Size 49CM S

Reach 365 mm 384 mm +19 mm

Stack 563 mm 564 mm +1 mm

Top tube (effective) 521 mm 541 mm +20 mm

Seat tube 400 mm 500 mm +100 mm

Head tube 90 mm 130 mm +40 mm

Head angle 70° 70.5° +0.5°

Seat angle 74.5° 74.5°

Chainstays 430 mm 425 mm −5 mm

Wheelbase 1,019 mm 1,034 mm +15 mm

Front centre 604 mm 619 mm +15 mm

Standover 700 mm 773 mm +73 mm

BB drop 85 mm 72 mm −13 mm

BB height 264 mm 277 mm +13 mm

Fork offset 55 mm 53 mm −2 mm

Trail 72 mm 69 mm −3 mm

Stem 60 mm –

Handlebar width 380 mm –

Crank length 165 mm –

Where to buy them

Specialized Diverge 4 Comp Apex AXS
Its full spec sheet
Bombtrack Hook Ext C Apex AXS
Its full spec sheet Compare the whole Bombtrack Hook range

Compare the whole Bombtrack Hook range

Frequently asked questions

Which is lighter, Specialized Diverge 4 Comp Apex AXS or Bombtrack Hook Ext C Apex AXS?

Specialized Diverge 4 Comp Apex AXS weighs 9.7 kg, Bombtrack Hook Ext C Apex AXS 9.9 kg, as their brands give them.

What groupset do Specialized Diverge 4 Comp Apex AXS and Bombtrack Hook Ext C Apex AXS come with?

Specialized Diverge 4 Comp Apex AXS: SRAM Apex AXS. Bombtrack Hook Ext C Apex AXS: SRAM Apex AXS.

How do Specialized Diverge 4 Comp Apex AXS and Bombtrack Hook Ext C Apex AXS compare on geometry?

In size 49CM, Specialized Diverge 4 Comp Apex AXS has a stack of 563 mm for a reach of 365 mm; in size S, Bombtrack Hook Ext C Apex AXS has 564 mm for 384 mm. More stack for the reach means a more upright position.

Compare other models

Specialized Diverge 4 Comp Apex AXS vs Bombtrack Hook Ext C Apex AXS

At a glance

Prices

Character

Gearing

Components and specs

Geometry

Stack and reach

Where to buy them

Frequently asked questions

Other comparisons