1. Introduction
This manual provides essential information for the proper assembly, use, maintenance, and care of your Lexon GFE Carbon Gravel Frame. Please read this manual thoroughly before attempting any assembly or use to ensure your safety and the longevity of your product. The Lexon GFE is a high-performance carbon gravel frameset designed for off-road and road cycling, offering a balanced ride with precise handling and maximum control.
Image 1: Lexon GFE Carbon Gravel Frame in a striking red/orange gradient, showcasing its sleek design and 'Gravel From The Ground Up' philosophy.
2. Critical Safety Warnings
Failure to follow these warnings can result in serious injury or death.
- Torque Wrench is Mandatory: You MUST use a calibrated torque wrench for all components (stem, seatpost, derailleur, bottle cages). Over-tightening can cause immediate or progressive carbon fiber failure. Never exceed the maximum torque values printed on the frame.
- Verify Compatibility Before Installation: Installing incompatible parts can damage the frame.
- No Modifications: Do NOT drill, cut, sand, or attempt to repair any part of the carbon frame. This voids the warranty and compromises structural integrity.
- Post-Crash Inspection: After any crash, impact, or hard drop, the frame must be inspected by a professional. Internal damage may not be visible. Stop using the bike immediately if you find any cracks, deep scratches, creaking sounds, or visual deformation.
FOR YOUR SAFETY, THE INITIAL BUILD AND ANY MAJOR SERVICE SHOULD BE PERFORMED BY A CERTIFIED BICYCLE MECHANIC FAMILIAR WITH MODERN CARBON FIBER FRAMES.
3. Specifications
The Lexon GFE Carbon Gravel Frame is engineered with high-quality materials and precise design for optimal performance.
| Feature | Detail |
|---|---|
| Brand | Lexon |
| Model | GFE |
| Frame Material | HMX SL Carbon Disc Mainframe (T800 and T1000) |
| Fork Material | HMX SL Carbon fork for Disc Brake |
| Frame Weight (54CM) | 1020g ± 30g |
| Fork Weight | 390g ± 10g |
| Seatpost Weight | 265g ± 5g |
| Cable Routing | Full Inner Cable |
| Frame Sizes Available | XS (490), S (520), M (540), ML (560), L (590) |
| Brake Type | Flat mount (140/160mm rotors) |
| Bottom Bracket | BB86 |
| Seatpost | AERO Carbon Seatpost |
| Max Tire Clearance | 700C × 47C / 27.5 × 1.95" |
| Max Chain Ring | 53/39T (2X), 42T (1X) |
| Axle Spacing | Front: 12 × 100mm, Rear: 12 × 142mm |
| Groupset Compatibility | Mechanical / Electronic (eTap / Campy EPS). Fully internal for electronic groupset only. |
| Headset | 52/52MM |
| Surface Processing Mode | Gloss |
| Origin | Mainland China |
Optional LEXON UNOX Integrated Gravel Handlebar Specifications:
| Feature | Detail |
|---|---|
| Material | Full Carbon T1000, Carbon UD, Superlight Layup |
| Width (W) | 380/400/420/440mm |
| Weight | 372 ± 15g (420*120mm) |
| Range of Use | ROAD |
| Steerer Diameter | 1-1/8" |
| Reach (R) | 80mm |
| Drop (D) | 125mm |
| Stem Lengths (N) | 80/90/100/110/120mm |
| Clamp Diameter | IC (Integrated Cockpit) |
Image 2: Important characteristics of the Lexon GFE frame, including material, weights, and dimensions.
Image 3: Specifications for the optional Lexon UNOX Integrated Gravel Handlebar.
4. Components Included
Your Lexon GFE Carbon Gravel Frameset package typically includes:
- Frame
- Fork
- AERO Carbon Seatpost
- Seatpost Clamp
- Integrated Headset
- Expander for Carbon Steertube
- Lexon ROAD plug-in thru axle
- Derailleur Hangers
- Cable Routing Grommets
Note: The LEXON UNOX Integrated Gravel Handlebar is optional and may be purchased separately.
5. Setup & Assembly
Proper assembly is crucial for safety and performance. We highly recommend professional assembly by a certified bicycle mechanic.
5.1. Preparation
- Clean all contact surfaces thoroughly before assembly.
- Apply a carbon fiber assembly paste to the seatpost, stem clamp area (if carbon), and bottom bracket shell threads (if threaded) to prevent slippage and creaking.
5.2. Headset/Bearing Press-Fit
- Use a proper bearing press tool and correct-sized adapters for headset installation.
- Pressing bearings in at an angle can damage the carbon head tube.
- The headset is 52/52MM.
5.3. Bottom Bracket Installation
- The frame uses a BB86 bottom bracket. Ensure your crankset spindle type (24mm or 29mm) matches the frame's BB standard.
- Use a proper bearing press tool and correct-sized adapters. Pressing bearings in at an angle can damage the carbon bottom bracket shell.
Image 4: Detailed view of the headset and bottom bracket areas, highlighting the 52/52MM headset and BB86 bottom bracket for optimal performance and durability.
5.4. Component Mounting
- Seatpost: Insert the AERO Carbon Seatpost to at least the minimum insertion mark. Use the frame's specified clamp and torque to secure it.
- Derailleur Hanger: Install the correct model-specific hanger and torque gently (usually 5-8 N·m).
- Wheels: Ensure hub width (Front: 12x100mm, Rear: 12x142mm) and type (thru-axle) are correct.
5.5. Cable Routing
- The GFE frame features full inner cable routing for a clean aesthetic and protection.
- Use foam sleeves or guide kits to prevent rattling and protect the inner walls of the frame.
- For electronic groupsets, the cable routing is fully internal.
Image 5: Illustration of the full inner cable routing system and integrated aero spacer sets for a clean and aerodynamic setup.
6. Operation
The Lexon GFE frame is designed for versatility across various terrains.
6.1. Tire Clearance
The GFE frame offers generous tire clearance, supporting up to 700C x 47C or 27.5 x 1.95" tires. This allows for optimal speed and efficiency on dirt roads, or increased traction and comfort with high-volume tires for challenging gravel conditions.
Image 6: Details on maximum tire clearance (700C x 45C / 27.5" x 1.95") and brake rotor compatibility (160mm front, 140mm rear flat mount).
6.2. Smart Mounts
The frame features multiple smart mounts, providing convenient locations to store food, water bottles, gear, and other accessories for long rides.
6.3. Handlebar Features (Optional UNOX Integrated Handlebar)
If using the optional Lexon UNOX Integrated Gravel Handlebar, note its specific features:
- 50mm Flare: The handlebar drops feature a 50mm flare, providing enhanced control and confidence in various riding situations.
- Non-Slip Coating: An anti-skid design on the handlebar ensures a secure grip and prevents potential safety hazards during riding.
- Unique Speed Meter Bracket Design: A beautifully integrated bracket supports Garmin & Bryton speedometers, and includes mounts for a camera and flashlight.
- Aero Spacers: Perfectly fit with the handlebar to maintain a neat and clean cockpit. Various sizes (5mm, 7mm, 10mm, 15mm) and specific top caps for full inner cable (10mm) or regular inner cable (8mm) are available.
Image 7: Visual representation of the 50mm handlebar flare and various aero spacer options for a customized fit.
Image 8: Diagram illustrating the unique speed meter bracket design supporting Garmin & Bryton devices, camera/flashlight mounts, and the cable routing map for the integrated handlebar.
Image 9: Close-up of the non-slip coating on the handlebar for improved grip and safety.
7. Care & Maintenance
Regular care and maintenance will extend the life of your carbon frame.
7.1. Cleaning
- Use a soft cloth, mild soap, and water to clean the frame.
- Do not use a high-pressure washer, steam cleaner, or harsh solvents, as these can damage the carbon finish and integrity.
- Avoid directing water into bearing areas or internal ports.
7.2. Storage
- Store the frame in a cool, dry place away from direct sunlight and sources of extreme heat (e.g., car trunk in summer).
7.3. Regular Inspection
Perform a visual and tactile check before important rides. Key areas to inspect include:
- Stress points: Around all dropouts, bottom bracket shell, head tube junctions, and seat cluster.
- Clamp areas: Where the stem, seatpost, and bottle cages contact the frame.
- Look for any cracks, chips, discoloration, or fraying carbon fibers.
7.4. Professional Service
We recommend a full safety inspection by a qualified bicycle mechanic at least once a year or after every 5,000 km of riding.
8. Troubleshooting
8.1. Post-Crash Inspection
After any crash, impact, or hard drop, the frame must be inspected by a professional. Internal damage may not be visible. Stop using the bike immediately if you find any cracks, deep scratches, creaking sounds, or visual deformation. Continuing to ride a damaged carbon frame can lead to catastrophic failure.
9. User Tips
- Build Quality: The Lexon GFE frame utilizes "Inner Mold Core Smooth Technology." This means the frame's inner walls are completely smooth and carbon fibers are tightly layered, ensuring consistent frame rigidity, small tolerances, and excellent build quality.
- Customization: The frame is customizable. If you desire a specific finish or no logo, please inquire with Lexon customer service regarding options.
Image 10: Diagram explaining Lexon's Inner Mold Core Smooth Technology, which ensures a high-quality internal finish and consistent carbon fiber layering.
10. Warranty & Support
10.1. Warranty Information
The Lexon GFE Carbon Gravel Frame comes with a 2-YEAR (24 months) warranty from the date of purchase. This warranty covers any breaks or fractures that might occur in any area during the correct use of the frame.
The warranty does NOT cover:
- Collision, accidents, strong impacts, or falls on the frame.
- Damage resulting from improper use, negligence, or improper assembly.
In situations where the damage caused is not covered by the guarantee, Lexon also offers lifetime crash replacements. Note that shipping costs and possible taxes for after-sale services will be borne by the buyer.
Image 11: Detailed information regarding the 2-year warranty and conditions for coverage.
10.2. Additional Resources
For a comprehensive guide and additional documents, please refer to the official user manual PDF available from Lexon. You can typically find this on the product page or by contacting Lexon customer service.
For any questions or support, please contact Lexon customer service.
11. Frequently Asked Questions (FAQ)
- Q: What is the build quality of the frame? What does the inside of the frame look like on the head tube, bottom bracket and seat post?
- A: The Lexon GFE frame boasts excellent build quality, utilizing "Inner Mold Core Smooth Technology." This advanced manufacturing process ensures that the internal surfaces of the frame, including the head tube, bottom bracket, and seat post area, are completely smooth. This results in tightly layered carbon fibers, contributing to consistent frame rigidity, small tolerances, and overall structural integrity.
- Q: Could I get the frame just black with no logo?
- A: Yes, the product is listed as 'is_customized: Yes'. Please contact Lexon customer service directly to discuss customization options, including specific colors or the absence of logos.
