This aluminum folding bike platform utilizes a hydroformed 6061-T6 aluminum alloy frame paired with CNC-machined locking hinge joints. Designed for private-label brands and fleet operators, the architecture balances structural load distribution with a total dry weight of 11.8 kg. Automated robotic TIG welding and post-weld T6 heat treatment ensure consistent mechanical strength across high-stress headtube and bottom bracket junctions.
Key Product Features
CNC-Machined Folding Latches: Dual-stage locking levers equipped with secondary spring pins prevent accidental unlatching under vertical load and high-torque pedaling.
Hydroformed Main Tube: Variable-cross-section down tube resists torsional flex, maintaining frame alignment during out-of-the-saddle acceleration.
Internal Cable Routing: Ported frame entries route shift and brake lines internally, protecting housing from environmental debris and reducing snag risks during folding cycles.
Telescopic Steering Column: Height-adjustable handlebar mast utilizes a quick-release collar clamp to accommodate diverse rider ergonomics without sacrificing steering rigidity.
Technical Specifications
|
Parameter |
Standard Configuration |
Customizable Options |
|
Frame Material |
6061-T6 Aluminum Alloy |
7005 Series Alloy |
|
Wheel Size |
20 inches |
16 inches / 24 inches |
|
Folded Dimensions |
82 x 35 x 68 cm |
Dependent on wheel spec |
|
Bike Weight |
11.8 kg (excluding pedals) |
+/- 0.5 kg component-dependent |
|
Max Load Capacity |
110 kg |
Up to 125 kg (reinforced seatpost) |
|
Brake System |
Mechanical Disc (160 mm rotors) |
Hydraulic Disc / V-Brakes |
|
Drivetrain |
Shimano Altus 8-Speed External |
Single-speed / Internal Gear Hub |
|
Surface Finish |
Matte Powder Coat / Anodized |
Custom Pantone Color Matching |
Frame & Structural Design
Robotic TIG Welding: Automated welding cells deliver uniform penetration beads, eliminating manual operator variance along structural joints.
Post-Weld Heat Treatment: Controlled T6 thermal cycling relieves residual stresses induced by welding, restoring tensile strength across the aluminum matrix.
Fatigue Testing Compliance: Frame samples undergo 100,000 vertical drop cycles and 200,000 pedal-force rotation cycles per ISO 4210 testing protocols prior to batch release.
Components & Configuration
Sealed cartridge bearing headset paired with a forged aluminum folding stem.
Solid aluminum pillar (33.9 mm outer diameter) featuring laser-etched insertion depth limit indicators.
52T forged aluminum chainring with dual-side polycarbonate chain guard.
20" x 1.75" urban tread featuring a puncture-resistant Kevlar belt layer and reflective sidewall strip.
Applications
Urban Commuter Fleets: Integration into municipal bike-share programs and corporate transit pools.
Retail Distribution: Private-label production for regional bicycle brands and sporting goods importers.
Recreational Transit: Compact trunk storage for RV owners, marine vessels, and multi-modal transit commuters.
Customization Options
Geometry Adjustments: Frame tube angles and wheelbase dimensions modified to meet regional ergonomic standards.
Branding Execution: Laser-etched headtube insignia, under-lacquer water-transfer decals, and custom-molded saddle embossing.
Accessory Integration: Factory-installed rear cargo racks, full-coverage fenders, and integrated front/rear LED hub-dynamo lighting systems.
OEM & ODM Manufacturing
Production Capacity: 15,000 units monthly output operating across two dedicated frame-building assembly lines.
Tooling Management: In-house CNC toolroom executes prototype sampling for proprietary frame geometries within 25 business days.
Batch Traceability: Laser-engraved serial numbers on every bottom bracket shell link directly to raw material mill test certificates and QA shift logs.
Quality Control
Incoming Material Inspection: Spectral analysis verifies elemental composition of incoming aluminum billet rods and sheet stock.
CMM Dimensional Audit: Coordinate Measuring Machines verify frame alignment, drop-out parallelism, and hinge tolerance within +/- 0.1 mm.
Corrosion Resistance Testing: Fasteners and surface treatments undergo 48-hour ASTM B117 salt fog exposure evaluations.
Packaging & Shipping
5-layer double-wall corrugated cardboard boxes (85 x 38 x 70 cm).
High-density EPE foam modular inserts secure the handlebar assembly, fork, and wheels against transit shock and abrasion.
A 20-foot dry container accommodates approximately 180 units (pedals detached); a 40-foot high-cube container accommodates 420 units.
MOQ & Lead Time
Minimum Order Quantity (MOQ): 100 units per model/colorway for standard configurations; 300 units for custom frame geometry OEM programs.
Production Lead Time: 35 to 45 calendar days following deposit receipt and pre-production sample sign-off.
Sample Availability: Functional prototypes available for lab testing within 14 days of specification confirmation.
Frequently Asked Questions
Q: What international safety standards do these folding bikes meet?
A: Production models comply with ISO 4210 safety standards for city and trekking bicycles. Test reports issued by TUV and SGS are available upon request for customs import clearance.
Q: How is hinge wear compensated for over long-term usage?
A: The folding mechanism utilizes adjustable brass shims and a spring-loaded retention bolt. Technicians can manually adjust the clamping tension to compensate for minor mechanical wear over years of folding cycles without replacing components.
Q: Can the bicycle be shipped fully assembled in bulk?
A: Bikes are shipped 95% pre-assembled to reduce dealer assembly time. Handlebars, pedals, and the front wheel require final tightening using standard hex keys included in each carton.
Q: What is the salt-corrosion resistance rating of the aluminum frame?
A: Aluminum 6061 naturally forms a protective oxide layer. Finished frames receive an additional protective clear coat over the anodized or powder-coated surface, passing a minimum 500-hour humidity and salt-spray corrosion resistance test.
Q: How do you handle custom paint matching and branding?
A: Clients provide Pantone color codes and vector logo files (AI or EPS format). Color sample spray-outs are shipped via courier for physical approval before mass painting begins.
Q: What is the warranty policy for manufacturing defects?
A: Frames carry a 5-year structural replacement warranty against weld failures and material defects. Mechanical components (drivetrain, brakes, seatpost) carry a 1-year replacement warranty from the date of port arrival.
Request a Quote
To receive a formal quotation including CIF/FOB shipping terms and volume tier pricing, submit your technical requirements and target order volume to our engineering sales desk.
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