What is the minimum order quantity?

The minimum order quantity is 1000 pieces.

What are your payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the average lead time?

The average lead time is one month for both peak season and off-season.

High-Performance Variable Speed Crank Sprocket for Mountain Bikes

Name: High-Performance Variable Speed Crank Sprocket for Mountain Bikes
Brand: Xingtai Tianjiu Bicycle Parts Co., Ltd
SKU: 2160075865

Hebei, ChinaXingtai Tianjiu Bicycle Parts Co., Ltd

US$3.30

200-499 Pieces

US$3.00

500-999 Pieces

US$2.50

1,000+ Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

1 Year

Condition

New

Certification

CE, BSCI

Customized

Application

Kids Bike, Road Bike, Mountain Bike, Ordinary Bicycle

Chainwheel Teeth

24t-42t

Material

Steel

Crank Length

152 mm

Speed

7s 21s

Chain Ring

22t-42t

Color

ED/Cp

Crank Material

Steel

Shield

Black Plastic

Use

Mountain Bikes

Transport Package

Carton

Specification

170 mm

Trademark

tianjiu/OEM

Origin

Hebei, China

HS Code

8714939000

Production Capacity

10000 PCS/Day

Key features

Wide Speed Range: Available in 7-speed and 21-speed configurations to suit various riding needs.

Durable Steel Material: Constructed with high-quality steel for the chainring and crank for long-lasting performance.

Customizable Dimensions: Offers flexible customization options including crank length, teeth count, and color.

Comprehensive Warranty: Backed by a 1-year warranty covering mechanical defects and quality issues.

Global Certification: Certified with CE and BSCI standards ensuring safety and ethical manufacturing.

Versatile Application: Suitable for kids bikes, road bikes, mountain bikes, and ordinary bicycles.

OEM and ODM Services: Full customization available from samples, designs, or minor adjustments.

Fast Response Time: Quotations provided within 24 hours of receiving detailed requirements.

Company profile

High Repeat Buyers ChoiceExhibition ExperienceFast DeliveryQuality Assurance

Xingtai Tianjiu Bicycle Parts Co., Ltd

Hebei, China

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:When can I get the price?

We usually quote within 24 hours after getting your detailed requirements, like size and quantity. If it is an urgent order, you can call us directly.

Q:How can you guarantee quality?

We always produce a pre-production sample before mass production and conduct a final inspection before shipment.

Q:Why should I buy from you instead of other suppliers?

Our company is located in Hebei province with rich resources for stable raw materials and advanced production equipment to ensure product quality.

Q:What are your terms of delivery?

We accept FOB, CFR, CIF, EXW, etc. You can choose the most convenient way. We also offer shipping by Air and Express.

Q:Is the price on the website accurate?

Please note that the price on Made-in-China is a rough estimate. The actual price depends on raw materials, exchange rates, wages, and your order quantity.