This is the top of the linethe strongest, most durable sealed chain Moose Racing offers
FB = Fine Blanking, an incredibly precise manufacturing process that yields perfectly cut links. Tight tolerances make the plate, pin, and bushing union accurate and strong
Due to the accuracy of the cuts and the use of stronger alloyed steel the FB has our highest tensile strength rating, nearly 8,000 lb.
Special sealing rings are chemically treated to gain strength and reduce friction. The FB treatment allows the O-rings to be impregnated with grease. FB rings are stronger and more durable than X-rings, with significantly less friction
Gold links and rollers, silver inner plates, pins and bushings
Clip-type connecting link included
Replacement connecting link available
Specifications| Color/Finish | Gold |
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| Material | Steel |
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| Product Name | Drive Chain |
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| Tensile Strength | 7937 lb / 35.3 kN |
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| Chain Size | 520 |
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| Chain Type | 520 FB |
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| Model | FB Series |
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| Seal Type | FB-Ring |
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| Maximum Engine Displacement (Offroad) | 750 cc |
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| Number of Links | 120 |
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| Type | Chain |
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| Master Link Connector Type | Clip |
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