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While changing the front sprocket it’s always recommended to inspect the countershaft oil seal that’s right behind the sprocket. Positioned on the high loaded countershaft and always in contact with dirt and water the oil seal can easily start leaking. ProX has developed a wide range of countershaft seal kits. These kits are an easy and complete replacement offering all the needed components and at the same time it is an upgrade kit resulting in improved durability against the OEM parts.
4MX Racing
4MX Racing Products is a Portuguese brand that is dedicated to sell and development of specific products for mx, sx, enduro and dirt bikes.
Quadracing
Quad Racing is a brand specialized in the development and manufacture of high quality products for Quads. Pioneers in the manufacture of aluminum nerfbars and bumpers in Portugal, since 2003.
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