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Product profile
Customization
AvailableAfter-sales Service
as Per SpecificationWarranty
6 MonthsModel NO.
SA-QBCondition
NewCertification
ISO9001Customized
CustomizedApplication
Kids Bike, Road Bike, Mountain Bike, Ordinary BicycleChainwheel Teeth
24-32TMaterial
AlloyItem
Bicycle CrankRaw Material
Aluminum, SteelSize
as Your RequirementTechincs
Forging, MachiningBrand Name
Shengao,OEMStandard or Nonstandard
NonstandardFactory
Over 15 Years Experience in ProducingLogo
CustomizedQuality Control
100% InspectedPrice Range
1~10USD/PCSOEM Service
YesCustom Made
YesLogo Printing
CustomizedMOQ
10-100PCSFree Sample
YesTransport Package
Plywood BoxSpecification
As your requirementTrademark
ShengaoOrigin
Weifang City, Shandong Province, ChinaHS Code
87089910Production Capacity
50000PCS/MonthKey features
Customizable Design: Supports full customization including size, logo, and material as per client requirements.
High-Strength Materials: Constructed from Aluminum Alloy + Chromium Molybdenum Steel for durability and stiffness.
Wide Compatibility: Compatible with 7/8/9/10/11/12S chains and Single/Double/Triple chainrings.
Rigorous Quality Control: 100% inspected using advanced 3D/2D instruments with detection accuracy to 0.001mm.
Competitive Pricing: Direct manufacturer pricing offering 30-50% savings versus branded equivalents.
Fast Delivery for Small Orders: Orders under 20pcs dispatched within 2 business days normally.
Proven Performance: Tested by professional cycling teams with 15% efficiency gains and reduced knee stress.
Global Export Experience: Supplying to 30+ countries with over 15 years of manufacturing experience.
Company profile
Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2010-04-06 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.28h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryWeifang Shengao Machinery Co., Ltd. is a limited company focused on mechanical parts, hardware, metal tools, CNC machine tools, and related components. It identifies as a professional technical supplier and offers 3D software design and broad customization services, including sample-, design-, full-, minor-, and flexible customization. The supplier has written procedures and records for service assessment, corrective actions, and complaint handling. Its export sales share is stated at 71%–90%, with three years of export experience. However, the supplier has nine employees, only two years of total R&D engineer experience, no new products in the past year, no ODM, SDK, or overseas service infrastructure, and no stated customer cases. Audit information is provided for a TUV Rheinland audit with a validity period from September 4, 2025 to September 3, 2026, but the evaluation result is recorded as 0 and no certification name is specified.
Supplier typeThe supplier explicitly identifies as a professional technical supplier and a limited company. Its stated business and product scope covers mechanical parts, hardware products, metal tools, CNC machine tools, functional components, forgings, and powder metallurgy products; the audit record identifies mechanical parts as the primary product.
After-Sales capabilityThe supplier has clear written procedures and followed records for corrective and preventive actions and for handling customer complaints. This directly supports an established service-response process, although the slices do not provide service performance results or response-time data.
Production capacityThe supplier reports an annual production output range, six to ten quality-control staff, on-time delivery, random production quality inspection, and its own factory. It has nine total employees, so the available evidence supports an operating production capability, while capacity beyond the stated output range cannot be determined.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also welcomes OEM and ODM requests according to its company description. These repeated statements provide direct evidence of broad customization coverage, although the separate record states that ODM is not available, creating a conflict on ODM specifically.
Product Q&A
Q:What materials are your cranksets made from?
A:
We offer a range of materials to suit different needs and budgets: Series CR-100 & CR-MTB: Made from heat-treated 6061-T6 or 7075-T6 forged aluminum alloy, offering an excellent balance of strength, stiffness, and weight. Series CR-200: Utilizes higher-grade 7075-T6 alloy for enhanced performance and reduced weight. Series CR-300: Our premium option features carbon fiber arms (often with a titanium or aluminum spindle) for maximum lightness and vibration damping.
Q:What crank arm lengths do you offer?
A:
Standard lengths include 165mm, 170mm, 172.5mm, and 175mm. Custom lengths outside this range are available for OEM/ODM orders with sufficient minimum quantities.
Q:Are your cranksets compatible with 1x, 2x, and 3x drivetrains?
A:
Yes. We provide various chainring mounting patterns (104/64mm BCD, 110mm BCD, Direct Mount) to support all configurations. Our MTB cranksets often feature Narrow-Wide chainrings optimized for 1x systems.
Q:Do you offer cranksets for electric bikes (E-Bikes)?
A:
Absolutely. Our urban/E-bike models feature reinforced construction to handle the higher torque outputs of mid-drive motor systems, ensuring long-term durability and safety.
Q:What is the weight of your cranksets?
A:
Weight varies by model and configuration: Alloy Models: ~580g - 680g Carbon Fiber Models: From ~480g Exact weights are listed in the technical specifications for each model.
Send Inquiry
*To:
Weifang Shengao Machinery Co., Ltd.
Weifang Shengao Machinery Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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