BH Gravelx Evo 4.5 R vs Bombtrack Hook Ext C Apex AXS

Gravelx Evo 4.5 R

Bombtrack

Hook Ext C Apex AXS

High endRaceCarbon700c2026

High endCarbon700c2025

Close on the specs and the list price: here are their 13 differences, line by line.

BHBH Gravelx Evo 4.5 R

Bombtrack Hook Ext C Apex AXS, side view

BombtrackBombtrack Hook Ext C Apex AXS

At a glance

Differences only

BH Gravelx Evo 4.5 R is the newer model (2026).

Key specs4 differences

List price £3,363 –

Model year 2026 2025

Frame Carbon

As printed

Gravel X Carbon Monocoque Racing

Carbon

As printed

Toray T800 carbon blend

Wheelset 700c · Vision Team TC30 XDR Disc 700c · Seido Sinus i21, tubeless ready, 32H

Drivetrain 1×12 1×12

Groupset SRAM Apex AXS SRAM Apex AXS

As printed

SRAM Apex AXS 1x, 12-speed

Brake model SRAM Apex SRAM Apex flat mount hydraulic disc

As printed

Sram Apex flat mount hydraulic disc brakes

Seatpost Rigid · BH Gravel X ^{°Value not published by the brand} Rigid · Seido Yew aluminium seatpost, 27.2 mm x 350 mm ^{°Value not published by the brand}

Weight– 9.9 kg

Fork model– Seido MGV full carbon

Prices

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

BH Gravelx Evo 4.5 R

Bombtrack Hook Ext C Apex AXS

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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.

Gravelx Evo 4.5 R · Gravel bike rather for smooth ground, very stable, rather high equipment.
Hook Ext C Apex AXS · Gravel bike all-round, neutral handling, rather high equipment.

Terrain

EasyDemanding

Handling

NimbleStable

Equipment level

Gravelx Evo 4.5 REquipment level 67/100 · High end
Hook Ext C Apex AXSEquipment level 67/100 · High end

BH Gravelx Evo 4.5 RBombtrack Hook Ext C Apex AXSother race gravel 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 Race

As printed

Gravel X Carbon Monocoque Racing

–

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

Frame and fork1 difference

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

As printed

Seido MGV full carbon

Frame weight 940 g 1,380 g +440 g

Max tyre clearance 45 mm 45 mm

Axles– Thru-axles

As printed

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

Bottom bracket– SRAM DUB T47 85.5 mm

Cable 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 ^{°Value not published by the brand}

As printed

SRAM Apex AXS SRAM Apex AXS

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 40T SRAM Apex Wide, DUB spindle

Cassette SRAM Apex 10/44 SRAM NX Eagle PG-1230 12-speed, 11-50 T

Rear derailleur SRAM Apex 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 ^{°Value not published by the brand}

As printed

SRAM Apex Disque hydraulique

Hydraulic disc

As printed

Sram Apex flat mount hydraulic disc brakes

Front rotor– 180 mm

Rear rotor– 160 mm

Wheels and tyres1 difference

Wheel size 700c / 29"

As printed

Pirelli Cinturato Gravel 700x40

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}

Tubeless ready– yes

Tyres Pirelli Cinturato Gravel 700x40 WTB Venture TCS Light 40-622, tubeless ready

Tyre width fitted 40 mm 40 mm

Cockpit and seatpost3 differences

Handlebar width 400 mm ^{°Value not published by the brand}–

Handlebar FSA NS Gravel, X, Handlebar, FSA NS Gravel, XS 400mm, SM 420mm, MD 420mm, LA 440mm, XL 440mm ^{°Value not published by the brand} Seido Tackle drop bar, 31.8 mm, 16° flare ^{°Value not published by the brand}

Stem FSA NS SMR, X, Stem, FSA NS SMR, XS 90mm, SM 100mm, MD 100mm, LA 110mm, XL 110mm ^{°Value not published by the brand} Seido Scatter forged aluminium stem, -7° ^{°Value not published by the brand}

Seatpost model BH Gravel X ^{°Value not published by the brand} Seido Yew aluminium seatpost, 27.2 mm x 350 mm ^{°Value not published by the brand}

Weight

Weighed in size– M

As printed

9.9 kg (size M)

Max total weight– 115 kg

Mounts and storage

Rack mounts– yes

Mudguard mounts– 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 Gravelx Evo 4.5 R

Size of Hook Ext C Apex AXS

Differences measured from

Gravelx Evo 4.5 R · XS
Hook Ext C Apex AXS · S

Stack and reach

Gravelx Evo 4.5 R · XS Gravelx Evo 4.5 R · XS — Reach (mm) 366 · Stack (mm) 510
Hook Ext C Apex AXS · S Hook Ext C Apex AXS · S — Reach (mm) 384 · Stack (mm) 564

Geometry15 differences

Size XS S

Reach 366 mm 384 mm +18 mm

Stack 510 mm 564 mm +54 mm

Top tube (effective) 503 mm 541 mm +38 mm

Seat tube 478 mm 500 mm +22 mm

Head tube 100 mm 130 mm +30 mm

Head angle 69.5° 70.5° +1°

Seat angle 75° 74.5° −0.5°

Chainstays 426 mm 425 mm −1 mm

Wheelbase 1,000 mm 1,034 mm +34 mm

Front centre 584 mm 619 mm +35 mm

BB drop 67 mm 72 mm +5 mm

BB height 282 mm 277 mm −5 mm

Fork offset 45 mm 53 mm +8 mm

Trail 82 mm 69 mm −13 mm

Standover– 773 mm

Where to buy them

BH Gravelx Evo 4.5 R
List price £3,363
Its full spec sheet Compare the whole BH Gravelx range
Bombtrack Hook Ext C Apex AXS
Its full spec sheet Compare the whole Bombtrack Hook range

Compare the whole BH Gravelx range Compare the whole Bombtrack Hook range

Frequently asked questions

What groupset do BH Gravelx Evo 4.5 R and Bombtrack Hook Ext C Apex AXS come with?

BH Gravelx Evo 4.5 R: SRAM Apex AXS. Bombtrack Hook Ext C Apex AXS: SRAM Apex AXS.

How do BH Gravelx Evo 4.5 R and Bombtrack Hook Ext C Apex AXS compare on geometry?

In size XS, BH Gravelx Evo 4.5 R has a stack of 510 mm for a reach of 366 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

BH Gravelx Evo 4.5 R vs Bombtrack Hook Ext C Apex AXS

At a glance

Prices

Character

Equipment level

Components and specs

Geometry

Stack and reach

Where to buy them

Frequently asked questions

Other comparisons