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Premium 28-52t Bicycle Crank Set for Smooth Single Speed Riding
US$1.50-2.50
100 Pieces
Sample price:US$0.00/set.Request sample
Product profile
Customization
AvailableAfter-sales Service
YesWarranty
YesModel NO.
TJ-CWCCondition
NewCertification
CE, ISO9001Customized
CustomizedApplication
Road Bike, Mountain BikeChainwheel Teeth
28-52 TMaterial
Steel/ Aluminum AlloySpeed
Single Speed/ Variable SpeedCrank Length
89/102/114/127/140/152/165/170/175mmChainwheel Piece
One Piece/ Three PiecesCover Layer
Single/DoubleCover Material
Plastic/Steel/AluminumLocation
CustomizedHole
B-Axle/D-AxleFinish
Cp/UCP/EDTransport Package
by CustomizedSpecification
28-52 TTrademark
TIANJIU/OEMOrigin
ChinaHS Code
87149620Production Capacity
300000sets/MonthKey features
Comprehensive Customization: Customizable speed, crank length, chainwheel pieces, cover layer, material, location, hole type, and finish.
Diverse Material Options: Available in Steel, Aluminum Alloy, and Plastic for various components to suit different needs.
Wide Crank Length Range: Offers 9 length options from 89mm to 175mm for optimal rider fit and performance.
Flexible Speed Configurations: Supports both Single Speed (28-52T) and Variable Speed (24-48T) chainwheel setups.
Global Certification Standards: Holds CCC, CE, SGS, and ISO9001 certifications ensuring compliance with international safety standards.
OEM and ODM Services: Full customization from samples, designs, or new concepts to meet specific brand requirements.
Sample Policy with Refund: Sample fees are refundable upon subsequent order placement, effectively making samples free.
Strict Quality Control: Rigorous inspection from raw material sourcing to final product checks ensures reliability.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤3.20h
AI-Powered supplier vetting
SummaryThe supplier is a combined company located in Hebei, China, with manufacturing, export, service, quality-control, and R&D-related capabilities listed. It offers broad customization and reports ODM and OEM experience, but is explicitly not a professional technical supplier and does not provide 3D software design or SDKs. Export activity is substantial, with 90% of total sales from exports and 10 years of export experience; stated markets include Africa, Europe, and domestic trade. Production resources include more than 10 production lines, inventory capability, and 6–10 quality-control staff, although no valid manufacturing-capacity contract with related subcontractors is reported. The supplier has quality assurance and uniformly followed finished-product inspection instructions, but lacks management-system certification, an approved-supplier list, and written corrective-action or complaint-handling procedures. Financial data for the stated periods shows zero reported operating revenue, operating cost,...
CertificationsThe supplier reports quality assurance in its quality-control processes, but its management-system certification status is NIL. Therefore, quality assurance is claimed without evidence of formal management-system certification.
After-Sales capabilityThe company describes comprehensive after-sales service and has inventory capability, but it has no overseas warehouse, overseas showroom, overseas agents or branches, and no written complaint-handling procedures or records. The positive service statement is therefore not supported by documented after-sales processes.
Financial creditThe provided financial records report zero operating revenue, operating cost, gross profit, and operating profit for 2024, with zero operating revenue also reported for 2023. These figures create a significant concern regarding demonstrated operating activity and financial credibility, although no further financial context is provided.
R&D capabilityThe supplier offers ODM services and OEM services for well-known brands, but reports no new products in the past year, no SDK availability, no 3D software design service, and only one year of total R&D engineer experience. The evidence indicates limited documented innovation capability despite design-related service offerings.
Production capacityThe supplier reports more than 10 production lines, inventory capability, standardized instructions for finished-product inspection, and one-month order fulfillment in both peak and off-peak seasons. However, it reports no valid manufacturing-capacity contract with related subcontractors, creating a documented capacity-management weakness.
Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, and also provides ODM services. These statements directly support broad customization capability.
Product Q&A
Q:Are you a factory or a trading company?
A:
We are a direct manufacturer with our own factory located in Xingtai City, Hebei Province, a well-known bicycle production hub. In addition, we work with trusted partner factories to meet various customer demands. Welcome customers to visit our factory.
Q:Do you offer OEM & ODM services?
A:
Yes, we offer both OEM (Original Equipment Manufacturing) and ODM (Original Design Manufacturing) services. We can customize products based on your specifications or work on entirely new designs to fit your brand's needs. Please feel free to contact us for more details on customization.
Q:Are samples available? Is there a charge for samples?
A:
To ensure fair cooperation, we do not provide free samples initially. If you require a sample, you will need to pay the sample fee and the shipping costs. However, the sample fee will be refunded with your subsequent order, effectively making the sample free. Once a successful partnership is established, we will provide free samples for future orders to further support our long-term cooperation.
Q:What is your shipping policy?
A:
Shipping costs depend on the weight, size, and shipping method of the package, as well as the delivery destination. We work with reliable international couriers to ensure that your orders are delivered in a timely and cost-effective manner. Please contact our customer service team for a detailed shipping quote.
Q:Do you offer product warranties?
A:
Yes, we offer a warranty on all our products to ensure customer satisfaction. If any part is damaged or defective, please send us detailed photos. We will assess the situation and send replacements based on the condition of the product.
Send Inquiry
*To:
Xingtai Tianjiu Bicycle Parts Co., Ltd
Xingtai Tianjiu Bicycle Parts Co., Ltd*Content:
Supplier replies will be sent to your registered email
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