Order approval depends on the motorcycle-specified 520 chain size, final link count, sprocket condition and master-link choice.
The 520SX3 motorcycle sealed chain combines 520 size, 120L or 128L options, 38 kN ultimate strength, and fit guidance for 400-1000 cc motorcycles. Its W-shaped seals and triple oil-retention structure protect internal grease for street, touring, competition, and off-road use. Seal-safe cleaning, compatible lubrication, inspection, and correct adjustment help preserve service life.
The 520SX3 is a 520-size W-sealed final-drive chain offered in 120L and 128L versions. Supply length selection follows the motorcycle manufacturer's chain size and required finished link count.
Model and size520SX3, 520 chain size
Supply lengths120L or 128L
Resistencia máxima38 kN
Reference application400-1000 cc motorcycles on the current product reference
Starting offerFrom USD 79 per chain, EXW; PreOrder
Information Needed For A Quote
A complete quotation uses the motorcycle make, model and year, the chain size shown in the service data, required finished link count, quantity, finish, preferred master-link type and delivery country. Front and rear sprocket condition also affects the service life of a new chain.
Seals sit between the inner and outer link plates around the pin-and-bushing joint. Their job is to retain factory-applied grease inside that joint and reduce the entry of water and abrasive contamination.
Decision point
Non-sealed chain
Conventional sealed chain
520SX3 W-sealed chain
Internal grease retention
No elastomer seal around each joint
Elastomer rings retain grease at the joint
W-shaped seals use a triple oil-retention structure
Contaminant barrier
Joint is more exposed to water and grit
Seal helps limit entry around the joint
W profile creates multiple sealing contacts around retained grease
Routine care
Frequent cleaning, lubrication and adjustment
External cleaning, lubrication and adjustment remain necessary
Seal-compatible products, correct slack and accurate alignment remain necessary
Selection basis
Fit, duty, care interval and budget
Fit, seal design, rated strength and application
Verified 520 fit, 120L/128L length, environment and order requirements
The W-seal does not replace external care, correct adjustment or sprocket inspection. Final selection follows the motorcycle service information rather than seal name alone.
Secure the motorcycle according to its service manual. Inspect the chain for damaged or missing seals, stiff links, corrosion, abnormal noise and uneven adjustment. Check both sprockets for hooked, worn or damaged teeth.
2. Clean And Dry
Apply a cleaner identified as safe for sealed motorcycle chains and use a soft brush. Avoid aggressive solvents, wire brushes and directing high-pressure spray at the seals. Remove residue and allow the chain to dry.
3. Lubricate, Adjust And Recheck
Apply a compatible motorcycle-chain lubricant as directed by its manufacturer and allow it to set before riding. Measure slack at the specified point, adjust both sides evenly and verify wheel alignment and fastener torque against the motorcycle service manual.
520SX3 Specifications
The model, chain size and length options establish the order baseline, while final motorcycle fit remains subject to the service specification.
120 links or 128 links; final length follows the motorcycle specification
Resistencia máxima
38 kN
Construction
Heat-treated alloy steel components, W-shaped elastomer seals and factory-applied grease
Reference application
400-1000 cc motorcycles; model-specific fit remains subject to service data
Applicable standard reference
ISO 606 / ANSI B29.1 dimensional requirements when stated on the order
Traceability
Model, link count, finish and batch or packing label recorded on order documents
Packing unit
1 chain per labeled anti-rust bag and export carton
Performance And Fit Conditions
Published reference values support comparison, but final service life depends on installation, alignment, lubrication, adjustment, load and riding conditions.
38 kNResistencia máxima
>=7.0 kNReference fatigue load
7 millionReference cycles without breakage
30,000 kmReference service-life claim
Drive fitUse with compatible 520 front and rear sprockets
Cleaning and lubricationUse seal-compatible products; avoid aggressive solvents and direct high-pressure spray at seals
Slack and alignmentFollow the motorcycle manufacturer service specification and torque values
Installation limitVerify final link count, sprocket wear, wheel alignment and master-link type before riding
Price, MOQ And Delivery
The published starting offer covers one standard 520SX3 chain. The final quotation confirms link count, finish, master link, quantity, packing, Incoterm and freight.
MOQ100 chains per model and finish
Sample policy1-3 paid sample chains; credit subject to quotation
Sample lead time7-10 working days
Bulk lead time25-35 working days after order approval
Starting price and availabilityFrom USD 79.00 per chain, EXW; PreOrder.
PackagingIndividual anti-rust bag and labeled carton; pallet consolidation for bulk orders
Payment termsT/T: 30% deposit and 70% balance before shipment
Shipping supportCourier, air or sea freight quoted to the destination
Manufacturer And Order Support
The legal manufacturer identity supplied for this project is used consistently in the page and Product structured data.
Hangzhou Zhizheng Technology Co., Ltd.
Located in Hangzhou, Zhejiang, China, Hangzhou Zhizheng Technology Co., Ltd. supports motorcycle-chain orders with model and finish confirmation, production coordination, inspection records, export packing and shipment documentation.
520SX3 model, link-count and finish review before quotation
Chain production and inspection coordination
Individual packing and pallet consolidation for export orders
Courier, air and sea-freight documentation support
Send Your Motorcycle, Length And Quantity
Phone: +86-0571-88620207
Correo electrónico: motomax@sfrchain.com
WhatsApp: +86-18857878411
Address: No. 271, Shuyun Road, Cangqian Street, Yuhang District, Hangzhou City, Zhejiang Province, People's Republic of China
520SX3 Ordering Options
No separate related-product URL and image pair was supplied. This list therefore shows only the verified length options for the current 520SX3 model.
120L
520SX3-120L
The 120-link supply length requires a motorcycle-specified finished link count and matching master-link type.
Motomaxsfr
