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BH Gravelx Evo 2.5 R GRX vs BH Gravelx Evo 3.5 R GRX Hydra

BH Gravelx Evo 2.5 R GRX, side view

BH

Gravelx Evo 2.5 R GRX

BH Gravelx Evo 3.5 R GRX Hydra, side view

BH

Gravelx Evo 3.5 R GRX Hydra

Mid-rangeRaceCarbon700c2026
Mid-rangeRaceCarbon700c2026

Two builds of the BH Gravelx line: 9 differences, mostly in the components.

BH Gravelx Evo 2.5 R GRX, side viewBHBH Gravelx Evo 2.5 R GRX
List price £2,545
BH Gravelx Evo 3.5 R GRX Hydra, side viewBHBH Gravelx Evo 3.5 R GRX Hydra
List price £2,727

At a glance

  • BH Gravelx Evo 2.5 R GRX costs £182 less than BH Gravelx Evo 3.5 R GRX Hydra (list price).
  • BH Gravelx Evo 3.5 R GRX Hydra has the higher-range groupset: Shimano GRX 820, against Shimano GRX400.
Key specs5 differences
List price £2,545 £2,727 +£182
Model yearSame for all 2026 2026
FrameSame for all Carbon
As printed

Gravel X Carbon Monocoque Racing

 Carbon
As printed

Gravel X Carbon Monocoque Racing

Wheelset 700c · Shimano RS170 Disc 700c · Shimano RS171 Disc
Drivetrain 2×10 1×12
Groupset Shimano GRX400 Shimano GRX 820 Higher range
Brake model Shimano GRX400 Shimano GRX 610 Higher range
SeatpostSame for all Rigid · BH Gravel X °Value not published by the brand Rigid · BH Gravel X °Value not published by the brand

Prices

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

BH Gravelx Evo 2.5 R GRX

BH Gravelx Evo 2.5 R GRX

BH Gravelx Evo 3.5 R GRX Hydra

BH Gravelx Evo 3.5 R GRX Hydra

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 2.5 R GRX · Gravel bike very demanding, average equipment.
  • Gravelx Evo 3.5 R GRX Hydra · Gravel bike very demanding, average equipment, equipment for the price better than 99% of other race gravel bikes.
Terrain
BH Gravelx Evo 2.5 R GRX 88%BH Gravelx Evo 3.5 R GRX Hydra 88%5 bikes1 bike4 bikes · BH Gravelx Evo 2.5 R GRX · BH Gravelx Evo 3.5 R GRX Hydra
EasyDemanding

Equipment level

0255075100£3,000£4,000£5,000£6,000£7,000List priceEquipment score
  • BH Gravelx Evo 4.5 R Apex AXS
  • BH Gravelx Evo 5.5 R GRX 820
  • Merida Mission 10k Xplr AXS
  • Merida Mission Force Xplr AXS
  • Merida Mission Grx400
  • Merida Mission Grx825 Di2
  • Merida Mission Rival Xplr AXS
  • BH Gravelx Evo 2.5 R GRX
  • BH Gravelx Evo 3.5 R GRX Hydra
  • Gravelx Evo 2.5 R GRXEquipment level 46/100 · Mid-range
  • Gravelx Evo 3.5 R GRX HydraEquipment level 59/100 · Mid-range
BH Gravelx Evo 2.5 R GRXBH Gravelx Evo 3.5 R GRX Hydraother 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 typeSame for all Race
As printed

Gravel X Carbon Monocoque Racing

 Race
As printed

Gravel X Carbon Monocoque Racing

SuspensionSame for all Rigid °Value not published by the brand Rigid °Value not published by the brand
Frame and fork
ForkSame for all Carbon °Value not published by the brand Carbon °Value not published by the brand
Frame weightSame for all 940 g 940 g
Max tyre clearanceSame for all 45 mm 45 mm
Drivetrain6 differences
Groupset brandSame for all Shimano
As printed

Shimano GRX400

 Shimano
As printed

Shimano GRX 820

ShiftingSame for all Mechanical °Value not published by the brand
As printed

Shimano GRX 400 10 sp Shimano GRX400

 Mechanical °Value not published by the brand
As printed

Shimano GRX 820 12sp Shimano GRX hydra

Chainrings 2 1 −1
Gears at the back 10 12 Best of the comparison+2
Chainring teeth Shimano GRX 400 46/30 Shimano GRX 820 Mono 40T Higher range
Cassette Shimano Deore 11/36 Shimano SLX 10/45 Higher range
Rear derailleur Shimano GRX 400 10 sp °Value not published by the brand Shimano GRX 820 12sp °Value not published by the brandHigher range
Shifters Shimano GRX400 °Value not published by the brand Shimano GRX hydra °Value not published by the brand
Brakes
BrakesSame for all Hydraulic disc °Value not published by the brand
As printed

Shimano GRX 400 Disque hydraulique

 Hydraulic disc °Value not published by the brand
As printed

Shimano GRX 600 Disque hydraulique

Wheels and tyres
Wheel sizeSame for all 700c / 29"
As printed

Pirelli Cinturato Gravel 700x40

 700c / 29"
As printed

Pirelli Cinturato Gravel 700x40

RimsSame for all Aluminium °Value not published by the brand Aluminium °Value not published by the brand
TyresSame for all Pirelli Cinturato Gravel 700x40 Pirelli Cinturato Gravel 700x40
Tyre width fittedSame for all 40 mm 40 mm
Cockpit and seatpost
Handlebar widthSame for all 400 mm °Value not published by the brand 400 mm °Value not published by the brand
HandlebarSame for all FSA NS Gravel, X, Handlebar, FSA NS Gravel, XS 400mm, SM 420mm, MD 420mm, LA 440mm, XL 440mm °Value not published by the brand FSA NS Gravel, X, Handlebar, FSA NS Gravel, XS 400mm, SM 420mm, MD 420mm, LA 440mm, XL 440mm °Value not published by the brand
StemSame for all FSA NS SMR, X, Stem, FSA NS SMR, XS 90mm, SM 100mm, MD 100mm, LA 110mm, XL 110mm °Value not published by the brand FSA NS SMR, X, Stem, FSA NS SMR, XS 90mm, SM 100mm, MD 100mm, LA 110mm, XL 110mm °Value not published by the brand
Seatpost modelSame for all BH Gravel X °Value not published by the brand BH Gravel X °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.

Gravelx Evo 2.5 R GRX · MGravelx Evo 3.5 R GRX Hydra · M
  • Gravelx Evo 2.5 R GRX · M
  • Gravelx Evo 3.5 R GRX Hydra · M

Stack and reach

520530540550560570580590340350360370380390400410↖ UprightAggressive ↘Reach (mm)Stack (mm)Gravelx Evo 2.5 R GRX · M — Reach (mm) 377 · Stack (mm) 556Gravelx Evo 3.5 R GRX Hydra · M — Reach (mm) 377 · Stack (mm) 556
  • Gravelx Evo 2.5 R GRX · M Gravelx Evo 2.5 R GRX · M — Reach (mm) 377 · Stack (mm) 556
  • Gravelx Evo 3.5 R GRX Hydra · M Gravelx Evo 3.5 R GRX Hydra · M — Reach (mm) 377 · Stack (mm) 556
Geometry
SizeSame for all M M
ReachSame for all 377 mm 377 mm
StackSame for all 556 mm 556 mm
Top tube (effective)Same for all 548 mm 548 mm
Seat tubeSame for all 520 mm 520 mm
Head tubeSame for all 140 mm 140 mm
Head angleSame for all 71° 71°
Seat angleSame for all 73° 73°
ChainstaysSame for all 426 mm 426 mm
WheelbaseSame for all 1,019 mm 1,019 mm
Front centreSame for all 602 mm 602 mm
BB dropSame for all 73 mm 73 mm
BB heightSame for all 276 mm 276 mm
Fork offsetSame for all 53 mm 53 mm
TrailSame for all 64 mm 64 mm

Where to buy them

Compare the whole BH Gravelx range

Frequently asked questions

Which is cheaper, BH Gravelx Evo 2.5 R GRX or BH Gravelx Evo 3.5 R GRX Hydra?

BH Gravelx Evo 2.5 R GRX has the lower list price: £2,545, against £2,727 for BH Gravelx Evo 3.5 R GRX Hydra. Today's prices by frame size are in the prices section.

What groupset do BH Gravelx Evo 2.5 R GRX and BH Gravelx Evo 3.5 R GRX Hydra come with?

BH Gravelx Evo 2.5 R GRX: Shimano GRX400. BH Gravelx Evo 3.5 R GRX Hydra: Shimano GRX 820.

How do BH Gravelx Evo 2.5 R GRX and BH Gravelx Evo 3.5 R GRX Hydra compare on geometry?

In size M, BH Gravelx Evo 2.5 R GRX has a stack of 556 mm for a reach of 377 mm; in size M, BH Gravelx Evo 3.5 R GRX Hydra has 556 mm for 377 mm. More stack for the reach means a more upright position.

Other comparisons

Compare other models