Bike Chain Aluminum Forging Wheel Chain Ring Folding Bicycle Hollow Crank Set

• Customization: Available
• After-sales Service: as Specification
• Warranty: as Specification
• Model NO.: JF-QB
• Condition: New
• Certification: CE, BSCI, EEC, ISO9001
• Customized: Customized
• Application: Kids Bike, Road Bike, Mountain Bike, Ordinary Bicycle
• Chainwheel Teeth: 44-52T
• Material: Alloy
• Item: Bicycle Chainwheel Crank
• Technics: Forging
• Part Type: Bicycle Crank
• Weight: as Per UR Requirements
• Export Markets: Global
• Shipping Port: Qingdao,Ningbo, Shanghai
• Surface Treatment: Spraying/Polishing/Galvanized/Electroplating
• Packing: Wooden Cases or Carton
• Place of Origin: China
• Transport: by Sea or Air
• OEM Service: Yes
• Custom Made: Yes
• Logo Printing: Customized
• MOQ: 10-100PCS
• Free Sample: Yes
• Transport Package: Plywood
• Specification: SGS
• Trademark: JF
• Origin: Weifang City, Shandong Province, China
• HS Code: 7326199000
• Production Capacity: 10000PCS/Month
• Package Size: 120.00cm * 110.00cm * 120.00cm
• Package Gross Weight: 30.000kg

Product Description

Bike Chain Aluminum Forging Wheel Chain Ring Folding Bicycle Hollow Crank Set

Product Description

 

Crank Construction: 2 pieces solid crank
Cassette compatability:8 speed; 9 speed
Chainring numbers:42-32-22T
Bolt Circle Diameter:104/64mm
Color:Black
Crank Arm material:Aluminum Alloy
Crank Arm Length:170mm
Bottom bracket: fits standard 68mm and 73mm shell.

Tolerance	± 0.02mm
Surface Treatment	Chrome Plating, Zinc Plating, Nickel plating, Electrophoresis, Anodization, Polishing, Powder coating, Sandblasting, Passivation, Spray painting, Etc.
QualityAssurance	ISO9001:2015 Certified, SGS Certification
QualityGuarantee	Two years
Inspection	1.Foundry in-house: 100% inspection on critical dimension; 100% on appearance. 2.Third Party inspection available upon requirement
Mainly Testing Facility	Three-dimensional measuring instrument, Salt spray test box, Dynamic balance detector, Pneumatic detection
Payment term	T/T, L/C
Lead time	Usually 20 days after order confirmed
Features & Advantage	1.High machining accuracy, the flatness within 0.1mm. 2.High strength and not easy to deform, has good electrical and thermal conductivity. 3.High finish appearance, smooth surface roughness is Ra1.6 after machining.

     Color:Seven colors
     Weight: 276g [Gear ratio] 11-28T (11-13-15-17-19-21-23-25-28T)
    *Road cassette type 9-speed variable speed bicycle flywheel, compatible with the variable speed
      systems of major mountain brands.
    *Made of high-strength steel, using quenching and tempering hardening technology. Therefore, it has
      high strength, durability and strong wear resistance. Strong oxidation resistance, not easy to rust, and
      long service life. Due to the unique design of the car sprocket, the shift function can be well controlled.
    *Using hollow design, the weight is reduced. The surface is made of vacuum colorful electroplating
      process. No fading phenomenonon the electroplated surface. The surface is more beautiful, giving
      a luxurious feeling.

Our Advantages

 

Sample

1) sample fee:The sample fee just the cost price , the sample fee is refundable if you place a big order later
2) freight: we usually send samples through Express such as UPS, DHL, Fedex, etc. or on your own requirement
3) sample time: 7-10 days
Service

1)Your inquiry will be replied within 6 hours.
2)Well-traind&experienced sales can reply your inquiries in English.
3)During working time,E-mail will be replied to you within 1 hours.
4)OEM&ODM projects are highly welcomed.
5)The order will be produced exactly according to order details and proofed samples,our QC will submit inspection report before shipment.
6)Your business relationship with us will be confidential to any third party.
7)Good after-sale service.

 Here are some of our other best-selling products for you to choose from

* NARROW WIDE TOOTH DESIGN:The new narrow-wide teeth design increases chain retention, ensures
   ultimate chain retention,increases wear life,and reduces friction and noise.
* SINGLE CHAINRING:Through the modification single speed chainrings, reduced the transmission system
   greatly ,completely abandoned the complex variable speed system,reduce the bike weight at least 1kg,
   looks more compact and simple, and also greatly improve your speed.
* SPROCKET RING: The narrow wide tooth design increasing the contact area with the chain greatly, so
   that each of the teeth can be fully inserted into the chain, increase the grasp force, make you no longer
   worried about the chain dorpped, easy to pass through bumpy road.

Packaging & Shipping

 

FAQ

 

1. Q: What are your terms of delivery?
    A: EXW, FOB, CIF, DAP
2. Q: How about your delivery time?
    A: Generally, it will take 10 to 30 days after receiving your advance payment The specific delivery time depends  on the items and the quantity of your order.
3. Q: Can you produce according to the samples?
    A: Yes, we can produce by your samples or technical drawings. We can build themolds and fixtures.
4. Q: What is your sample policy?
    A: We can supply the sample if we have ready parts in stock, but the customer shall to pay the sample cost and the courier cost.
5.Q: Do you test all your goods before delivery?
   A: Yes, we have 100% test before delivery.
6. Q: How do you make our business long-term and the good relationship?
    A: 1. We keep good quality and competitive price to ensure our customers benefit.
    2. We respect every customer as our friend and we sincerely do business andmake friends with them, no matter where they come from.

   Quality First, Price Best, Service Foremost! 
   We assure you of our best services at all times! 

   If you are interested in product,please click " SEND " for more details.