The Moose Offroad 520 FB is a top-tier sealed drive chain built for maximum durability and low friction in hard off-road use. Fine Blanking manufacturing delivers precise, strong links and long service life.
The Moose Offroad 520 FB Chain is built for riders who demand the strongest, most durable sealed chain for motocross and enduro power levels. Thanks to FB (Fine Blanking), every link is cut with exceptional precision, creating tight tolerances between plate, pin and bushing for a stronger, more accurate union and consistent performance under heavy load.
The chain uses chemically treated FB-Ring seals engineered to reduce friction while staying exceptionally durable. These rings can be impregnated with grease, helping retain lubrication where it matters most and extending chain life in mud, dust and high-torque riding conditions.