Engineered for urban transit fleets and commercial micro-mobility deployment, this compact folding bike combines high-tensile 6061-T6 aluminum architecture with a patented dual-safety hinge locking mechanism. Designed for high-frequency folding cycles (tested to 50,000 actuations), the platform supports municipal rental schemes, corporate commuter fleets, and retail brand customization.

Key Product Features

01/

Dual-Safety Hinge System: Primary quick-release clamp paired with a secondary spring-loaded security pin prevents accidental unfolding during operation.

02/

Integrated Cable Routing: Internal routing through the main frame tube protects control lines from weather corrosion and mechanical snagging during transit.

03/

Telescopic Handlebar Post: Adjustable height range accommodates 155 cm to 190 cm rider profiles without tools.

04/

Anti-Drop Chain Guide: Prevents chain derailment during rough folding handling and urban pavement impacts.

Technical Specifications

Parameter	Specification
Folded Dimensions	680 x 350 x 620 mm
Unfolded Wheelbase	1020 mm
Net Weight	11.5 kg (excluding accessories)
Max Rider Load	110 kg (ISO 4210 static load tested at 150 kg)
Frame Material	Hydroformed 6061-T6 Aluminum Alloy
Fork Material	High-tensile chromoly steel (4130)
Wheel Size	20 inch (406 x 1.75)
Transmission	Shimano Altus 7-speed / Internal 3-speed hub options
Brake System	Mechanical disc brakes (160 mm rotors)
Tires	CST puncture-resistant urban tread with reflective sidewall

Frame & Structural Design

Hydroforming Technology: The main frame tube utilizes variable-thickness hydroforming to optimize stress distribution at high-load bending zones while reducing overall mass.

TIG Welding Precision: Robotic TIG welding ensures uniform bead penetration and structural integrity, verified by ultrasonic weld inspection.

Surface Treatment: T6 heat treatment followed by automated multi-stage acid pickling, zinc-phosphate priming, and electrostatic powder coating (80–120 um film thickness). Salt spray corrosion resistance exceeds 500 hours (ASTM B117).

Components & Configuration

Headset:

Integrated sealed cartridge bearing (1-1/8 inch) for steering stability.

Crankset:

Forged aluminum 6061 arms (170 mm) with 52T chainring and CNC-machined dual-side aluminum chain guard.

Seatpost:

Oversized 33.9 mm x 580 mm anodized aluminum with laser-etched height insertion markers and anti-slip surface texture.

Pedals:

Glass-fiber reinforced nylon body with foldable cage and Cr-Mo spindle.

Applications

Micro-Mobility Fleets: Urban dockless and station-based bike-sharing networks requiring low maintenance and high structural durability.

Last-Mile Logistics: Integrated commuter equipment for courier personnel utilizing public transit systems.

Marine & RV Equipment: Compact onboard transport for yachts, recreational vehicles, and commercial transport vessels.

Corporate Commuter Programs: Branded internal mobility assets for large industrial campuses and logistics hubs.

Customization Options

Color Matching:

Custom RAL powder coating or liquid paint matching for frame, fork, and rims.

Branding Elements:

Laser-etched headtube logos, custom PVC frame badges, and screen-printed chain guard graphics.

Component Tiering:

Powertrain configurations adjustable between Shimano, SRAM, or proprietary internal gear hubs based on target retail price points.

Accessory Integration:

Optional front cargo block, rear rack (25 kg load capacity), integrated USB dynamo hub lighting, and customized mudguards.

OEM & ODM Manufacturing

Tooling Capability: In-house CNC machining center supports rapid prototype generation and custom frame geometry modifications within 30 days.

Production Capacity: Three dedicated assembly lines operating on a single-shift model yield an output capacity of 8,000 units per month.

BOM Transparency: Complete Bills of Materials provided for OEM partners, including raw material mill test certificates (MTC) and component manufacturer traceability.

Quality Control

Incoming Material Inspection: Spectral analysis verifies elemental composition of aluminum billets before extrusion; tensile testing machines confirm yield strength thresholds.

In-Process Testing: Torque-controlled pneumatic assembly tools record tightening data for critical fasteners (handlebar stem, seatpost clamp, axle nuts).

Finished Goods Testing:
• Frame fatigue test: 100,000 pedal load cycles per ISO 4210-6 standards.
• Hinge durability test: 50,000 fold/unfold cycles under load.
• Brake efficiency test: Roller bench dyno testing for stopping distance and lever force.

Certificates: ISO 9001:2015 quality management system, ISO 4210 bicycle safety compliance.

Packaging & Shipping

Export Packaging: Single unit packed in a 5-layer double-wall corrugated export carton (820 x 370 x 670 mm). Internal expanded EPE foam immobilization prevents transit vibration damage.

SKD/CKD Options:
• SKD 85%: Handlebar, front wheel, pedals, and saddle disassembled; 240 units per 40ft high-cube container.
• CKD: Bulk packed frames and components for local assembly lines; 520 units equivalent per 40ft high-cube container.

Palletization: Fumigation-free plywood pallets available upon request for automated warehouse handling.

MOQ & Lead Time

Standard Specification (OEM Branding):

MOQ 100 units per color/model; production lead time 35 to 40 days upon deposit receipt.

Custom Frame Geometry (ODM):

MOQ 500 units; tooling and sample validation phase requires 60 to 75 days prior to mass production.

Spare Parts Support:

3% critical spare parts (hinge sets, cables, derailleur hangers) supplied gratis with bulk orders.

FAQ

Q: What is the expected lifecycle of the folding hinge mechanism under commercial fleet usage?

A: The dual-safety hinge mechanism utilizes hardened stainless steel pivot pins and forged aluminum locking plates, tested to withstand 50,000 continuous folding cycles without structural play or loss of clamping force. Maintenance involves periodic inspection and lithium grease application at 6-month intervals.

Q: Can the frame geometry be modified for specific market anthropometrics?

A: Yes. As an ODM manufacturer, we adjust top tube length, seat tube angle, and stem reach based on regional rider sizing data, supported by finite element analysis (FEA) stress testing before mold fabrication.

Q: What documentation is provided to verify regulatory compliance for import?

A: Each shipment includes ISO 4210 test reports issued by accredited third-party laboratories (such as SGS or TÜV), material certificates of origin, commercial invoices, packing lists, and Certificate of Conformity (CoC).

Q: How are the aluminum frames protected against marine or high-humidity environments?

A: Frames undergo multi-stage chemical conversion coating prior to electrostatic powder deposition. Internal tube surfaces are treated with an anti-corrosion wax rust inhibitor injected via frame vent holes to prevent internal oxidation.

Q: What are the standard payment terms for bulk OEM manufacturing?

A: Standard commercial terms require a 30% telegraphic transfer (T/T) deposit upon contract signing, with the remaining 70% balance paid against presentation of the bill of lading copy and final inspection report. Letter of Credit (L/C) at sight is acceptable for orders exceeding $100,000 USD.

Q: How do you handle quality discrepancies or defective units upon delivery?

A: We maintain a strict warranty policy covering structural frame defects for 3 years and mechanical components for 1 year. Defective parts identified during receiving inspection or field operation are replaced free of charge in subsequent shipments based on photographic and serial number documentation.