Gravel electric tandem bike

From

€7,899

  • 21% VAT included, shipment costs not included
  • OLI Edge-SH 90Nm motor with integrated and removable 630Wh battery
  • Base components pack + assembly
  • Any opaque RAL colour for the frame and black or white contrasting logos
  • “Bikefitting” geometry design

The eGR is the ideal electric tandem gravel bike. It is designed to travel kilometers on gravel terrain with maximum efficiency. Thanks to its light and robust aluminium frame, combined with a specific geometry for gravel, and the battery integrated in the central and lower part of the frame, it guarantees optimal efficiency, stability and maneuverability. 

Designed for ultimate comfort and performance, it features a powerful 250W and 90Nm motor, with a maximum speed of 25 km/h, and a 600Wh battery (can be improved to 725Wh battery or Bosch electric system with 800Wh battery). 

At Campmajó all our tandems are customised, from geometry, to components to painting. Contact us to build your own! And enjoy components from our partners including FSA, DT Swiss, SRAM, FOX and Ergon amongst others.

Interested in gravel but with flat handlebars? No problem! At Campmajó all our tandems are customised, contact us, let us know and we will provide a price accordingly. 

CREATE YOURS

Click to start your own customization form

Electric system options

Included in the base price with 630Wh battery

OLI eBike Systems is a leading Italian brand with a global vision, committed to innovation and top-tier performance. Our Gurugú base mount features the OLI Edge motor, delivering 90Nm of torque for smooth and powerful assistance. Paired with a 630Wh battery, it delivers consistent and dependable performance. 

DRIVE UNIT

90Nm carefully distributed to deliver a natural pedalling feeling in any circumstance. Perfect match for limitless eMTB

  • Max torque: 90Nm
  • Max assistance until 25km/h
  • Rated continuous output: 250W
  • Weight: aprox. 3kg

Edge-SH

DISPLAY AND CONTROL UNITS

High-definition TFT display packed in a slim and elegant design. It integrates with any handlebar.

  • 2″ color screen
  • Motor power output
  • Rider power
  • Gorilla-glass anti reflective
  • Handlebar button controller

High Vision

BATTERY OPTIONS

Additional cost of +€1,090 to the OLI base price, including BOSCH electric system with 800Wh battery

BOSCH is the most renowned name in the e-bike world. And now our Gurugú features its latest launch, BOSCH Performance Line CX motor, launched on October 24 with the latest tech and Smart System software updates. Gurugu will also be equipped with the new PowerTube 800Wh battery, BOSCH’s most powerful and energy-packed model yet. 

DRIVE UNIT

The latest eMTB model from BOSCH. Precise and controlled power. The ultimate uphill flow.

  • Max torque: 85Nm
  • Max assistance until 25km/h
  • Rated continuous output: 250W
  • Maximum power: 600W
  • Weight: aprox. 2.8kg

Performance Line CX

DISPLAY AND CONTROL UNITS

Intuitively controlled via the control units. Compact and protected against water splash and dust. Ideal for sporty adventures and demanding rides.

  • 2″ color screen
  • eBike Flow App updates
  • Activity tracking
  • Navigation function
  • eBike lock by removing the display

Kiox 300, System Controller and Mini Remote

BATTERY OPTIONS

Drivetrain specs and options

BACK

1 – Cassette

  • 11/51 – 12s
  • HG spline

2 –  Rear derailleur

  • 12s derailleur
  • Mechanical or AXS
  • Sram UDH
  • T-type ready

3 – Chain

  • KMC
  • eBike 12s

MIDDLE

4 – Mono chainring

  • FSA MEGATOOTH 38t – 42t 
  • “Direct mount” BOSCH spline
  • Chain line: 47,5mm

5 – Rear timing chainring

  • Miranda 34t
  • BCD104 / 4b

6 – Stoker crankset

  • Miranda – Delta R2 Crankset ISIS 165mm
  • Spider: Miranda BCD104 / 4b

FRONT

7 – Chain tensioner

  • Campmajó ISCG system
  • 14t pulley
  • Protects chainring

8 – Front timing chainring

  • Miranda 34t
  • BCD104 / 4b

9 – Captain crankset

  • BSA 73mm
  • FSA – COMET 170mm
  • Spider: Campmajó simple BCD104 / 4b

RECOMMENDED OPTIONS

  • RX610
  • 11/51 – 12s
  • Mechanical
  • +€0
  • RX820
  • 11/51 – 12s
  • Mechanical
  • +€104
  • XPLR
  • 11/51 – 12s
  • Electronic
  • +€289

Wheels options

GRAVEL

  • 29″ or 27,5″
  • Aluminium
  • 24mm inner width
  • 28 spokes
  • 100x12mm / 12x142mm
  • Center Lock
  • HG spline
  • +€0

Hybrid Gravel HG 1800

  • 29″ or 27,5″
  • Aluminium
  • 25mm inner width
  • 28 spokes
  • 100x12mm / 12x142mm
  • Center Lock
  • HG spline
  • +€60

GR24

  • 29″ or 27,5″
  • Aluminium
  • 24mm inner width
  • 28 spokes
  • 100x15mm / 12x143mm
  • Center Lock
  • HG spline
  • +€260

Fork options

RIGID

Carbon Fork for Gravel & Road Tandems. Lightweight and strong, reinforced with aluminum in key areas for tandem-ready durability. Front rack compatible and color-matched to the frame for a clean, integrated look.

  • +€0

WITH 100mm SUSPENSION

For riding on dirt roads and added comfort, a 100 mm suspension fork can be installed. We use short-travel XC models, more robust than gravel forks and suitable for tandem use.

  • JUDY SILVER  +€110
  • SID SL SELECT CHARGER  +€569

Seat posts options

RIGID SEATPOST

COMET – simple and reliable. Our standard option, included in the base price. Lightweight, low-maintenance, and ideal for riders who don’t need on-the-fly height adjustments.

  • Ø30.9mm
  • +€0

MECHANICAL DROPPER POST

Dropper SHOT – practical and versatile. Adjust saddle height quickly and easily with a cable-actuated system. A solid upgrade for more dynamic riding on changing terrain.

  • Ø30.9mm
  • +€85 per unit

SUSPENSION SEATPOST

EESILK+ – smooth and comfortable. Designed to absorb bumps and vibrations on rough terrain, its elastomer-based system provides enhanced comfort for a smoother ride.

  • Ø30.9mm
  • +€220 per unit

ELECTRONIC DROPPER POST

Reverb AXS – latest technology and high-performance. High-end wireless system for fast, precise saddle height adjustments at the touch of a button. Clean setup, minimal maintenance, and top-tier performance.

  • Ø30.9mm
  • +€1064 per unit

Stoker stem options

SIMPLE ADJUSTMENT

Our simplest adjustable stoker stem. Designed for tandems with standard seatposts that will remain in a fixed position over time, with minimal changes to the stoker handlebar or the captain seat.

  • Vertical adjustment via clamp on the captain’s seatpost
  • Horizontal adjustment through the stem itself
  • Seatpost clamp: Ø31.6mm
  • Handlebar clamp: Ø31.8mm
  • +€0

SIMPLE ADJUSTMENT FRAME CLAMP

This model is the same as the first but features our double-diameter clamp system. The same stem clamp secures the captain’s seatpost, allowing seat position adjustments without affecting the stoker handlebar position. It is also ideal for dropper seatposts.

  • Diagonal adjustment
  • Campmajó double-diameter seat tube clamp system
  • Seat tube clamp: Ø34.9mm (lower) and Ø31.6mm (upper)
  • Handlebar clamp: Ø31.8mm
  • Includes threaded holes for one bottle cage
  • +€48.4

DOUBLE ADJUSTMENT FRAME CLAMP

In this model, an angular adjustment is added to the longitudinal adjustment. This system allows the handlebars to be positioned almost anywhere in space, ensuring maximum comfort and flexibility for the stoker, whether for personal fit or to accommodate different riders.

  • Longitudinal and angular adjustment
  • Campmajó double-diameter seat tube clamp system
  • Seat tube clamp: Ø34.9mm (lower) and Ø31.6mm (upper)
  • Handlebar clamp: Ø31.8mm
  • Includes threaded holes for two bottle cages
  • +€108.9

Frame-only options

To ensure the optimal operation of the our e-tandem frames’ drivetrain and to avoid any potential compatibility problems, we only sell electric frames including the electric system and timing drivetrain components. 

Gravel electric tandem frame

  • Aluminuim frame and primary drivetrain
  • OLI Edge-SH 90Nm or BOSCH PowerLine CX 85Nm motor with integrated and removable 630, 725 or 800Wh battery 
  • “Bikefitting” geometry design
  • Any opaque RAL colour for the frame and black or white contrasting logos

From

€5,199

21% VAT included, shipment costs not included

Gravel double battery tandem frame

  • Aluminuim frame and primary drivetrain
  • OLI Edge-SH 90Nm or BOSCH PowerLine CX 85Nm motor with integrated and removable 630, 725 or 600Wh batteries
  • “Bikefitting” geometry design
  • Any opaque RAL colour for the frame and black or white contrasting logos

From

€6,175

21% VAT included, shipment costs not included

Fill out the form, and we will send you a detailed preliminary quote along with the design of your tandem — completely non-binding!

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