BH GRAVELX User Manual 2026

01 Introduction

This user manual contains important information for the proper use and maintenance of your bicycle. It provides specific details for the GRAVELX RACING and GRAVELX ALL TERRAIN models. Please read the entire manual carefully. User manuals for all BH models can be found on the website: https://www.bhbikes.com/manuals. Manuals are updated regularly, so ensure you have the latest version. Additional information is also available at: https://www.bhbikes.com/es_INT/quienes-somos/manuales-descargas. For third-party parts, consult their respective official websites.

Symbols

This document uses various icons to indicate warnings related to use, maintenance, and assembly. Please read the meaning of each symbol carefully to prevent improper handling or hazardous situations that could result in serious personal injury or fatal accidents.

Safety Warnings

DANGER: Indicates a hazardous situation that, if not avoided, will lead to serious injuries or even a fatal accident.

WARNING: Indicates a hazardous situation that, if not avoided, could lead to serious injuries or even a fatal accident.

ATTENTION: Indicates a hazardous situation that, if not avoided, could cause minor or moderate injuries.

RISK OF ELECTRIC SHOCK: Indicates a hazardous situation that, if not avoided, could cause serious injuries due to electric shock or even death.

RISK OF SHORT CIRCUIT: Indicates a hazardous situation that, if not avoided, could cause short circuits in electrical components, potentially leading to damage and fire.

Tools

• [Flat Wrench]
• [Allen Key]
• [Torx Key]
• [Phillips Screwdriver]

Note: Tightening torques, indicated in Newton-meters (e.g., [10 Nm]), will be shown next to the relevant tool symbol.

Type of Assembly Compound

• [Oil]: Light lubrication for elements such as chains and cables.
• [Grease]: Assembly grease.
• [Carbon Paste]: Assembly paste used to increase the friction of carbon elements.
• [Adhesive]: Use medium strength thread lock. Apply a drop to the screw thread to prevent loosening due to vibrations. Avoid applying more than one drop to prevent difficulty in removal.

02 BH Warranty

BH BIKES is committed to offering high-quality, long-lasting bicycles. In addition to the statutory warranty, BH BIKES provides an additional coverage and warranty. This section details the types of warranty and the process for registering the "LifeTime Frame" warranty.

Statutory Warranty

The statutory warranty covers the original purchaser against manufacturing defects and non-conformities for frames and components manufactured by BH BIKES. The warranty period is determined by the current laws of the country of purchase and begins on the purchase date. During this period, manufacturing defects will be repaired or replaced free of charge, including transport expenses and any resulting losses. Conditions for warranty coverage include:

• Does not affect consumer rights under current laws.
• Faulty items are covered upon decision by BH Technical Service.
• Does not cover parts prone to wear from normal use.
• Does not cover defects or breakages due to improper use, competitions, non-original accessories, or incorrect maintenance.
• Requires that pre-delivery and periodic inspections, as documented in this manual, have been carried out and stamped by an authorized BH dealer.
• If repairs are unsatisfactory, replacement or refund may be requested.
• The warranty period is interrupted during repairs or renewed with replaced items.
• Claims expire six months after the warranty validity period ends.
• All claims must be processed through an authorized dealer.
• Geographical scope is detailed in the User Manual or at www.BHbikes.com.

Read the full terms and conditions at: https://www.bhbikes.com/es_INT/registro-garantia-vida-bh/registra-tu-bici-garantia-de-por-vida

Lifetime Frame Warranty

BH Bikes offers a commercial policy through its authorized stores, covering manufacturing defects in frames beyond the statutory warranty period. Key clauses:

1. This warranty applies only to BH frames and bikes sold through authorized BHBIKES EUROPE S.L. stores.
2. The buyer must register the LIFETIME warranty online within 30 calendar days of purchase, as shown on the invoice.
3. The warranty is non-transferable and is void upon sale to a third party. The original buyer is the one who registers the warranty at the time of purchase.
4. The bicycle must be serviced at an establishment authorized by BHBIKES EUROPE, following the user manual instructions.

The LIFETIME warranty does not cover:

• Rear swingarms of double suspension models, forks, kids' bikes, paint defects/fading, or rust due to natural deterioration.
• Defects or breakages from accidents or improper/negligent use.
• Installation of non-intended or incompatible components/accessories.
• Defects from improper handling.
• Scratches, discoloration, or stains from abrasive fluids, sharp items, clamps, or prolonged exposure to sunlight/weather.
• Normal wear and tear, including material fatigue. Users are responsible for regular inspection.
• Improper use and/or maintenance.
• Frames used in competitions, demos, or rentals.

Read the full terms and conditions at: https://www.bhbikes.com/es_INT/registro-garantia-vida-bh/registra-tu-bici-garantia-de-por-vida

Registering the Lifetime Frame Warranty

To activate the LIFETIME FRAME extended warranty, register your bicycle within 30 days of purchase. Follow these steps:

• Register on the BH BIKES website: https://www.bhbikes.com/es_INT/registro-garantia-vida-bh/registra-tu-bici-garantia-de-por-vida
• Watch the instructional video: https://youtu.be/47aLVgUI248

The serial number is located on the bottom of the bicycle, on the seat tube, above the bottom bracket.

Submitting a Warranty Claim

All warranty claims must be processed through an official BH dealer. The dealer will assess the claim, submit it to BH, and communicate BH's decision to the customer. Claims must be processed by the dealer from whom the bicycle was purchased. If this is not possible, contact BH for assistance in finding an authorized dealer: https://www.bhbikes.com/es_INT/quienes-somos/contacto.

03 Maintenance

This section provides important information for the GRAVELX RACING and GRAVELX ALL TERRAIN models. Refer to https://www.bhbikes.com/manuals for general model manuals and https://www.bhbikes.com/manuals for additional information. Check third-party part websites for their specific recommendations.

Inspect the Bicycle Before Use

Bicycles undergo inspections during manufacturing and final checks. Before each ride, perform the following checks, as transport or modifications may affect operation:

• FRAME: Check for cracks, damage, or strange noises.
• CHAIN: Ensure it is lubricated and the transmission system operates quietly.
• BRAKES: Verify proper function. Press brake levers firmly when stopped to ensure they do not reach the handlebars.
• TYRES: Check correct pressure and inspect for cuts on the tread and sides. Ensure wear levels do not exceed recommendations.
• WHEELS: Ensure wheels rotate freely and are centered. Check brake lining-to-rim clearance and frame-to-tyre clearance.
• STEERING: Confirm smooth operation without strange noises.
• SWINGARM ROTATION POINTS: When weight is applied, suspension should function as expected without strange noises. Play or improper function may indicate incorrect torque or worn bearings.
• BEARINGS: Ensure bearings operate smoothly. Replace worn bearings to prevent damage to other components.
• ELECTRICAL SYSTEM: If applicable, check electrical assistance mode, motor, display, assistance mode changes, and speed sensor. If no assistance is present, verify connections and check for damage.

Do not ride if any of these points are not met, as a faulty bicycle can cause serious accidents. If unsure, contact your nearest BH workshop.

Warning: Failure to check tightening torques as per recommendations can lead to accidents and death. Dynamic loads subject bicycle parts to stress, causing fatigue and wear. Regularly check for signs of wear, scratches, bends, finish wear, or cracks. Parts may fail after their service life; have them replaced by an authorized BH workshop.

Keep the Bicycle Clean

Follow these basic prevention measures for optimal bicycle condition. Failure to do so can lead to premature wear or breakages:

• Clean dust and mud with a damp sponge and a mild, neutral cleaning product.
• Wash plastic parts with soapy water only.
• Wash tyres with a sponge or brush and soapy water.
• Dry the bicycle thoroughly with a soft cloth after cleaning.
• Lubricate transmission elements after each cleaning.

Caution: Dirt can cause damage leading to accidents or death. Never use pressure washers or steam cleaners.

Keep the Transmission Lubricated at All Times

Washing can remove chain lubrication. Inspect and lubricate chain links as needed. Excess lubrication attracts dirt, causing premature wear and system malfunction. Never use pressure washers or steam cleaners.

Part Maintenance

Regular maintenance and inspections are crucial. Maintenance frequency depends on usage (leisure, road, mountain) and conditions.

Part Maintenance Calendar

Spare Parts

Use original parts for optimal performance and safety. Failure to do so may result in damage not covered by warranty. Common spare parts include tyres, inner tubes, brake pads, disc brakes, rims, headlights, position lights, batteries, and accumulators.

• TYRES: Replace with equivalent ETRTO standard tyres. Ensure sufficient clearance (at least 6mm) between the tyre and frame/fork to prevent accidents.
• INNER TUBES: Use suitable types according to the tyre's ETRTO standard.
• DISC BRAKES AND BRAKE PADS: Follow manufacturer instructions.
• HEADLIGHTS AND POSITION LIGHTS: Replace bulbs with the same type.
• CHAIN, COG AND CHAIN RINGS: Follow manufacturer instructions.
• BATTERIES AND ACCUMULATORS: Replace with the same type.

Warning: Using non-original parts may cause damage not covered by warranty.

After a Fall, Blow or Impact

If you experience a fall, blow, or impact, first ensure you are okay to continue. Do not ride if injured; seek medical assistance if needed. If able to continue, inspect the bicycle thoroughly:

• Wheels: Ensure they are securely fastened and centered. Check wheel rotation and brake clearance. If the gap is too small, adjust brakes.
• Handlebars/Frame: Check for twists or breaks. Ensure the front is firmly seated on the fork.
• Chain: Verify correct fitment. If the bicycle fell on the transmission side, check its operation. Ensure proper clearance between the largest cog and spokes. Bent gears or brackets can cause the chain to snag on spokes, leading to falls. Check the derailleur; if shifted, the chain may come off.
• Frame/Saddle/Bottom Bracket: Inspect for defects.
• Bolts: Lift the bicycle and drop it gently. Listen for noises indicating loose bolts.
• General Inspection: Re-check the entire bicycle for bent areas, worn finish, or cracks.

Ride cautiously after inspection. Avoid sudden braking or acceleration, and pedaling uphill. If unsure, seek assistance. Inspect again at home. If still uncertain, contact a BH workshop.

Note: Bent aluminum parts must not be straightened; they must be replaced due to the high risk of breakage.

04 Warnings on Use

Maximum Tyre Size

If installing a different tyre size, ensure at least 6 mm of clearance between the tyre and frame/fork parts.

Minimum and Maximum Insertion Length of the Seat Post

Failure to adhere to the specified seat post insertion dimensions can create a lever effect on the frame, potentially causing damage and serious accidents. Such damage is not covered by warranty.

Maximum Fork Length (Axle-to-Crown)

Observe the maximum axle-to-crown length for the fork. Exceeding this limit can damage the frame due to excessive load, leading to serious accidents.

Maximum Number of Steering Spacers

Adhere to the maximum number of steering spacers specified for fitting under the stem. Exceeding this limit can damage materials due to excessive load, leading to serious accidents.

Position of the Spindle Inside the Fork Tube

No steering spacers should be fitted above the stem, as this can damage materials due to excessive load, leading to serious accidents.

Intended Use

Each bicycle is designed for a specific purpose. The models in this manual are intended for use on asphalt roads, with wheels always maintaining contact with the running surface.

05 Sizes and Dimensions

Refer to the tables below for detailed dimensions.

GRAVELX R (LG656 / LG556 / LG456 / LG356 / LG356 MODELS)

GRAVELX AT (LG606 / LG506 / LG406 / LG306 / LG206 MODELS)

06 Technical Specifications

Detailed technical specifications for the BH GRAVELX models are provided below.

Dimensions of the Steering Tube

Diagram illustrating the dimensions of the steering tube for all models. The diagram shows a conical tube with specific measurements for diameter and angles.

07 Assembly and Spare Parts

Headset Assembly

Diagram showing the components and assembly order for the headset. Includes parts like compressor, bearings, washer, and expander.

Important Note: Carbon forks must never be mounted with a spindle. The spindle may exert pressure beyond the fork's design limits, potentially causing breakage and accidents. Always mount the fork with an expander.

ACR Stem

Diagram illustrating the assembly of the ACR Stem, showing components like stem, covers, and screws.

Front Axle Mounting

Diagram showing the front axle mounting process. Warning: Tightening the axle without the wheel in place may cause the carbon to break behind the housing. It is advisable to avoid tightening the axle for bicycle transport.

Hanger

Diagram showing the bicycle hanger and its mounting hardware.

Mounting the Built-in Lock on the Saddle's Seat Post

Diagram illustrating the mounting of the built-in lock on the seat post, including the shim and bolt.

Derailleur Bracket

Diagram showing the derailleur bracket and its screws.

Flexible Join Mounting

Diagram illustrating the mounting of the flexible join for LG606 / LG506 / LG406 / LG306 / LG206 models, showing sleeve, bearing, and axle.

Rear Light

Diagram showing the rear light assembly, including the light, bolt, magnetic coupling, and frame coupling.

Toolbox

Diagram showing the integrated toolbox on the bicycle frame.

Bottle Holder

Diagram illustrating the mounting of the bottle holder with screws.

Mounting the Shimano Di2 in Bottom Bracket Shell

Diagram showing the installation of the Shimano Di2 components within the bottom bracket shell for LG656 / LG606 models.

Di2 Shimano

Mounting of the Shimano Di2 on the Seat Post

Step-by-step instructions for mounting the Di2 battery on the bottom bracket:

1. INSERT DI2 THROUGH THE STEERER TUBE INTO THE DIAGONAL TUBE.
2. PULL THE END OF THE BATTERY OUT OF THE BOTTOM BRACKET SHELL HOLE.
3. ATTACH THE PLASTIC PARTS TO THE BATTERY.
4. INSERT THE PLASTIC PARTS INTO THE HOLE UNTIL THE ASSEMBLY IS FIXED.

Diagram showing the Di2 seatpost mount and Di2 Shimano components.

Built-in Pocket

Diagram illustrating the built-in pocket assembly for LG606 / LG506 / LG406 / LG306 / LG206 models, showing covers, screws, and base components.

Cabling of the Mechanical Parts

Diagrams illustrating the routing of mechanical cables (front brake, rear brake, front derailleur, rear derailleur) for different model series.

Models LG656 / LG606 / LG556 / LG506 / LG256 / LG206

Diagram shows cable routing for front brake, rear brake, front derailleur, and rear derailleur.

Models LG456 / LG406 / LG356 / LG306

Diagram shows cable routing for front brake, rear brake, and rear derailleur.

08 Declaration of Conformity

BH BIKES EUROPE, SL declares that the specified bicycle products (including various Mountain, Racing, City, Trekking, and Young Children/Adults models, and specifically the GRAVELX series) manufactured in 2025 and 2026 comply with relevant requirements of RD 339/2014 and harmonized standards such as ISO 4210, ISO 8098, and EN 16054. Production control is managed by an ISO 9001 certified Quality Management System. Technical documentation is filed at BH BIKES EUROPE, SL, Vitoria, Spain. The document is prepared and reviewed by the BH Quality Department.

09 Help and Additional Resources

Technical Resources

Find resources for fine-tuning your bicycle on the BH Bikes website, including user manuals, apps, warranties, and update files: https://www.bhbikes.com/manuals. Access step-by-step tutorials on maintenance and fine-tuning on the specialized YouTube channel: https://www.youtube.com/user/ServicioTecnicoBH.

Contact Us

Authorized dealers are available for assistance. Find your nearest store via the store locator: https://www.bhbikes.com/es_INT/tiendas/buscador-de-tiendas.

For direct contact:

• Tel: +34 945 13 52 02
• Email: info@bhbikes.com
• Address: P.I. Jundiz- Perretagana 10, 01015 Vitoria, Alava (Spain)

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