Category

Gravel

Frame Weight

990 g (raw, size M)

Fork Weight

395 g (cut to fit size M)

Sizes

S / M / L / XL

Climbing

Aero

Comfort

Gravel

Trail

Calmly gliding over bumpy ground at immense speed. Superhero feeling. A bike that emulates how Eero Hämäläinen became a rally legend.

The Eero is built to be fast on tarmac but best on gravel. With aerodynamic tube shapes, cables hidden from the wind, a lightweight frame and the ability to run double chainrings, this bike does not hold you back on paved roads. You can comfortably join that weekly road group ride on the Eero without your friends realizing that you are on a bike that is even better elsewhere.

Designing the frame specifically with the latest gravel groupsets in mind allowed us to create space for tires up to 700c x 50. And you cannot defy physics, as soon as the ground gets bumpy or soft, wide tires are faster. We designed the geometry to increase confidence in challenging terrain without losing the sharpness, responsivity and quick handling we love about drop bar bikes. Thin, lowered seat stays and a layup refined by the use of FEA simulation software absorb vibrations and hits coming from the ground, while sturdy chainstays make sure no energy is lost. All this combined means you will fly along gravel roads like Eero, leaving your competition in the dust.

But Eero was also a nature lover and bon vivant who liked to explore. We are sure he would have made good use of the multiple storage options and rack mounts, loading up his bike to disappear into the wilderness between races. We placed two bottle cages low in the frame to leave enough room for a frame bag. Additional mounts on the top tube and below the down tube let you carry your essentials, and if that is not enough there are mounts for a rear carrier.

Your weekly diet of riding includes a ride to work? With fender mounts you will arrive dry even on wet days despite having the fastest commuter bike in the streets.

Features

Tire Clearance

Wider tires provide additional comfort and grip. To maximize your off-road capabilities, the Eero can accommodate tires up to 700C x 50.

BSA BB

We are willing to sacrifice a few grams of weight savings for a creak-free, threaded bottom bracket.

Fender and Rack Mounts

If you plan to use the Eero for commuting, it features fender mounts and offers the option to mount a rack.

Layup Optimization

Thanks to the use of specialized draping and FEM programs, which are rarely used in the bicycle industry, we were able to fully exploit the potential of each individual fiber. By using a mix of high-quality materials and fiber orientations, we were able to achieve the best balance between low weight and optimal stiffness

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Front Derailleur Mount

With the Eero, all options are open: whether it's a one-by or two-by drivetrain, thanks to a front derailleur mount, you can find the optimal setup for you.

Offset Seatstays

By lowering the seat stays, we can improve vertical compliance without sacrificing lateral stiffness. This means more comfort and traction while maintaining efficient pedaling.

Aerodynamic Tube Shapes

All relevant tubes are aerodynamically optimized to reduce air resistance while maintaining the same stiffness.
The surfaces facing the wind are following NACA profiles, without any edges creating turbulences. A sharp transition into a flat backside cheats the wind into creating a virtual tear drop profile, shielding the components behind the tube from the wind.

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Additional mounts

Are your jersey pockets overflowing? The Eero provides mounting points on the top tube for an additional bag, keeping everything within easy reach.

FIDLOCK ready

Our Eero is FIDLOCK ready. If you already own a FIDLOCK water bottle, you can simply clip it to the base and off you go!

Build specs & prices

GRX DI2 2x12

€6,299

Colors

Frame ARC8 Eero Carbon

Fork ARC8 Eero Carbon

Seat Post Faserwerk Wuthocker 0mm Offset, 400mm

Headset ARC8

Axle M12xP1.5; 100mm & 142mm

Stem ICH Stem

Handlebars Alloy handlebar with flare

Bar Tape Faserwerk Handschmeichler

Saddle Selle Italia Novus Boost

Shift Lever Shimano GRX 825

Front Rotor Shimano RT800; 160mm

Rear Rotor Shimano RT800; 160mm

Crankset Shimano GRX 820 48-31T

Bottom Bracket Shimano SMBBR60

Cassette Shimano CSR8100 11-34T

Chain Shimano CNM8100

Front Derailleur Shimano GRX 825

Rear Derailleur Shimano GRX 825

Battery Shimano BRDN300

Cable Shimano SD300 700mm / Shimano SD300 1200mm

Front Wheel ARC8 Carbon 36mm & DT 350 Hub & DT Aero Comp

Rear Wheel ARC8 Carbon 36mm & DT 350 Hub & DT Aero Comp

Front Tire Pirelli Cinturato Gravel H 40-622

Rear Tire Pirelli Cinturato Gravel H 40-622

Tube Tubeless

Weight (Size M) 8.4

FORCE WIDE AXS ETAP 1x12

€5,499

Colors

Frame ARC8 Eero Carbon

Fork ARC8 Eero Carbon

Seat Post Faserwerk Wuthocker 0mm Offset, 400mm

Headset ARC8

Axle M12xP1.5; 100mm & 142mm

Stem ICH Stem

Handlebars Alloy handlebar with flare

Bar Tape Faserwerk Handschmeichler

Saddle Selle Italia Novus Boost

Shift Lever Sram Force eTap AXS D2; 12 Speed

Front Rotor Sram Paceline; 160mm

Rear Rotor Sram Paceline; 160mm

Crankset Sram Force 1x Wide 40T

Bottom Bracket Sram DUB BSA 68 Road Wide

Cassette Sram XG 1271 10-44T

Chain Sram Force Chain

Front Derailleur -

Rear Derailleur Sram Force Xplor AXS; 12 Speed

Battery Sram Powerpack / incl. Charger

Cable -

Front Wheel DT SWISS GR 1600 Spline

Rear Wheel DT SWISS GR 1600 Spline

Front Tire Pirelli Cinturato Gravel H 40-622

Rear Tire Pirelli Cinturato Gravel H 40-622

Tube Tubeless

Weight (Size M) -

GRX 2x12

€4,499

Colors

Frame ARC8 Eero Carbon

Fork ARC8 Eero Carbon

Seat Post Faserwerk Wuthocker 0mm Offset, 400mm

Headset ARC8

Axle M12xP15; 100mm & 142mm

Stem ICH Stem

Handlebars Alloy handlebar with flare

Bar Tape Faserwerk Handschmeichler

Saddle Selle Italia Novus Boost

Shift Lever Shimano GRX 820; 12 Speed

Front Rotor Shimano RTMT800; 160mm

Rear Rotor Shimano RTMT800; 160mm

Crankset Shimano GRX 810 48/31T

Bottom Bracket Shimano SMBBR60

Cassette Shimano CSR8100 11-34T

Chain Shimano CNM8100

Front Derailleur Shimano GRX 820 12 Speed

Rear Derailleur Shimano GRX 820 12 Speed

Battery -

Cable -

Front Wheel DT SWISS G 1800 Spline

Rear Wheel DT SWISS G 1800 Spline

Front Tire Pirelli Cinturato Gravel H 40-622

Rear Tire Pirelli Cinturato Gravel H 40-622

Tube Tubeless

Weight (Size M) 8.7 kg

GRX 1x12

€4,499

Colors

Frame ARC8 Eero Carbon

Fork ARC8 Eero Carbon

Seat Post Faserwerk Wuthocker 0mm Offset, 400mm

Headset ARC8

Axle M12xP15; 100mm & 142mm

Stem ICH Stem

Handlebars Alloy handlebar with flare

Bar Tape Faserwerk Handschmeichler

Saddle Selle Italia Novus Boost

Shift Lever Shimano GRX 820; 12 Speed

Front Rotor Shimano RTMT800; 160mm

Rear Rotor Shimano RTMT800; 160mm

Crankset Shimano GRX 820 42T

Bottom Bracket Shimano SMBBR60

Cassette Shimano CSM8100 10-51T

Chain Shimano CNM8100

Front Derailleur -

Rear Derailleur Shimano GRX 822 12 Speed

Battery -

Cable -

Front Wheel DT SWISS G 1800 Spline

Rear Wheel DT SWISS G 1800 Spline

Front Tire Pirelli Cinturato Gravel H 40-622

Rear Tire Pirelli Cinturato Gravel H 40-622

Tube Tubeless

Weight (Size M) 8.4 kg

FRAME SET

€2,699 →

Colors

Frame ARC8 Eero Carbon

Fork ARC8 Eero Carbon

Seat Post Faserwerk Wuthocker 0mm Offset, 400mm

Headset ARC8

Axle M12xP1.5; 100mm & 142mm

Stem ICH Stem

Handlebars Alloy handlebar with flare

Weight (Size M) -

You can’t find your desired specification? We can change that! ARC8 stands for custom builds—whether it’s the spec or the frame color. If you have specific requests, feel free to contact your dealer. They can arrange variations of the listed bikes or even complete custom builds for you.

Geometry

		S	M	L	XL
	Rider Height	170-176	175-181	180-187	>187
A	Reach	364	376	388	400
B	Stack	545	568	593	618
C	Top Tube Length	525	545	564	583
D	Seat Tube Length	510	550	570	600
E	Seat Tube Angle	73.5	73.5	73.5	73.5
F	Head Tube Angle	70	71	71	71
G	Head Tube Length	137	157	170	197
H	Fork Offset	50	50	50	50
I	Fork Length	395	395	395	395
J	Chain Stay Length	420	420	420	420
K	Wheelbase	1002	1012	1032	1053
L	BB Drop	75	75	75	75
	Stand Over Height	774	809	830	858

Technical details

Component	Specification	Comment
Front Derailleur	braze-on
Shifting Systems	Mechanical, Di2, Etap
Brakes	Flat Mount	160 mm rotors, 180 mm with adaptor. Rear mount height 25 mm
Tires	700C x 50 max.	700Cx50 tires are only compatible with an Oneby drivetrain. The size of the knobs might have an influence on tire clearance. 650b compatible.
	700C x 45	For Twoby drivetrains only 700Cx45 tires are possible. The size of the knobs might have an influence on tire clearance.
Axles	12 x 142 / 12 x 100	Following Shimano standard
Seatpost	ø27.2
Seatpost clamp	ø30.9
Headset	ICH	integrated system
BB	BSA 68
Max. chainring size	Shimano GRX 1x and 2x	all available
	Sram Force Wide	max. 40T
	Easton	47.6 chainline 40T maximum; 51.6 chainline: 50T
	Campagnolo	Ekar 38 T maximum
Fenders		Mounts for regular fenders on frame and fork
Storage	3x bottle cage; top tube bag; rear carrier

→ Download Assembly Instruction

Frequently asked questions

On the Eero, you can ride tires up to 50mm width (700Cx50), when you're using a Oneby drivetrain. However, please note that the tire width may vary depending on the inner rim width of the wheel.

On the Eero, we install a handlebar with a 12-degree flare. If you prefer a handlebar with more flare, we can also offer you a handlebar with a 30-degree flare.

The Eero has mounts for full fenders and a rear rack. Additionally, you find mounts on the top tubes and under the down tube for more storage.

The maximum load weight for a luggage carrier on the Eero is 10 kg. We recommend an even load and avoiding one-sided loading (e.g. mounting the entire weight on one side only).

Unfortunately, the Eero is not fully compatible with a road bike groupset. A standard road bike drivetrain from Shimano, for example, is not compatible with the Eero. However, if this is exactly what you are looking for, then it would be possible to use a FSA or Easton crank (in combination with Shimano) or a SRAM Wide groupset.

Eero

Features

Tire Clearance

BSA BB

Fender and Rack Mounts

Layup Optimization

Front Derailleur Mount

Offset Seatstays

Aerodynamic Tube Shapes

Additional mounts

FIDLOCK ready

Build specs & prices

Geometry

Technical details

Background stories

BIKE NEWS · May 22, 2024

GRX Di2 goes 2x12sp

BIKE NEWS · Sep 5, 2023

Eero meets new Shimano GRX

INSIGHTS · May 23, 2022

Who is Eero?

Frequently asked questions