{"id":236805,"date":"2025-11-03T11:45:38","date_gmt":"2025-11-03T11:45:38","guid":{"rendered":"https:\/\/innteck.it\/innteck-usa\/?post_type=product&p=236805"},"modified":"2026-10-06T07:13:40","modified_gmt":"2026-10-06T07:13:40","slug":"inner-fork-bushing-external-ptfe-kayaba-48-mm-athena","status":"publish","type":"product","link":"https:\/\/innteck.it\/innteck-usa\/product\/motorcycle\/suspensions\/fork-bushings\/inner-fork-bushing-external-ptfe-kayaba-48-mm-athena\/","title":{"rendered":"Inner Fork Bushing External PTFE \u2013 Kayaba 48 mm Athena"},"content":{"rendered":"

The Athena S41TE48K Inner Fork Bushing External PTFE<\/strong> is a replacement sliding bushing designed for compatible Kayaba \/ KYB 48 mm motorcycle front forks<\/strong>.<\/p>\n

Developed for professional suspension servicing and rebuilding, the bushing uses a high-strength steel body<\/strong> engineered to withstand the repeated tensile, compressive, and sliding loads generated during fork operation.<\/p>\n

The external working surface is coated with PTFE (polytetrafluoroethylene)<\/strong>. This low-friction coating reduces sliding resistance between moving suspension components and helps minimize wear as the fork repeatedly compresses and rebounds.<\/p>\n

The inner surface features a copper coating<\/strong>, selected for its thermal conductivity and resistance to corrosion. The copper layer helps distribute heat generated during suspension operation while providing additional protection against oxidation.<\/p>\n

The combination of steel, PTFE, and copper is designed to provide smooth fork movement, consistent suspension response, and increased durability under demanding off-road and competition use.<\/p>\n

Each package contains one bushing<\/strong>, suitable for servicing one fork leg<\/strong>. For a complete overhaul of both fork legs, a second identical S41TE48K bushing is required together with the corresponding internally PTFE-coated bushings used by the specific KYB fork assembly.<\/p>\n

<\/h3>\n

<\/h3>\n

Key Features<\/h3>\n
    \n
  • High-strength steel construction designed to withstand repeated suspension loads<\/strong><\/li>\n
  • External PTFE coating reduces sliding friction and helps minimize fork bushing wear<\/strong><\/li>\n
  • Internal copper coating promotes heat dissipation and provides additional corrosion resistance<\/strong><\/li>\n
  • Designed for compatible Kayaba \/ KYB 48 mm motorcycle front forks<\/strong><\/li>\n
  • Supplied individually, with one bushing required for each fork leg<\/strong><\/li>\n<\/ul>\n

    <\/h3>\n

    <\/h3>\n

    Technical Specifications<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Specification<\/th>\nDetails<\/th>\n<\/tr>\n
    Manufacturer<\/strong><\/td>\nAthena S.p.A.<\/td>\n<\/tr>\n
    Part Number \/ SKU<\/strong><\/td>\nS41TE48K<\/td>\n<\/tr>\n
    Product Type<\/strong><\/td>\nFront Fork Sliding Bushing<\/td>\n<\/tr>\n
    Fork Manufacturer<\/strong><\/td>\nKayaba \/ KYB<\/td>\n<\/tr>\n
    Fork Diameter<\/strong><\/td>\n48 mm<\/td>\n<\/tr>\n
    Bushing Type<\/strong><\/td>\nExternal PTFE<\/td>\n<\/tr>\n
    Body Material<\/strong><\/td>\nSteel<\/td>\n<\/tr>\n
    External Coating<\/strong><\/td>\nPTFE<\/td>\n<\/tr>\n
    Internal Coating<\/strong><\/td>\nCopper<\/td>\n<\/tr>\n
    Dimensions<\/strong><\/td>\n47 \u00d7 49 \u00d7 20 mm<\/td>\n<\/tr>\n
    Inner Diameter<\/strong><\/td>\n47 mm<\/td>\n<\/tr>\n
    Outer Diameter<\/strong><\/td>\n49 mm<\/td>\n<\/tr>\n
    Width \/ Height<\/strong><\/td>\n20 mm<\/td>\n<\/tr>\n
    Quantity<\/strong><\/td>\n1 bushing<\/td>\n<\/tr>\n
    Service Coverage<\/strong><\/td>\n1 fork leg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    The 47 \u00d7 49 \u00d7 20 mm<\/strong> specification is consistently published for Athena S41TE48K by specialist distributors.<\/p>\n

    <\/h3>\n

    <\/h3>\n

    OEM Cross References<\/h3>\n

    Published cross references for S41TE48K<\/strong> include:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
    Manufacturer<\/th>\nOEM Reference<\/th>\n<\/tr>\n
    Beta<\/strong><\/td>\n037340220000<\/td>\n<\/tr>\n
    Beta<\/strong><\/td>\n037.34.022.00.00<\/td>\n<\/tr>\n
    Honda<\/strong><\/td>\n51415-MEN-A31<\/td>\n<\/tr>\n
    Kawasaki<\/strong><\/td>\n44065-0022<\/td>\n<\/tr>\n
    Kawasaki<\/strong><\/td>\n44065-1140<\/td>\n<\/tr>\n
    Suzuki<\/strong><\/td>\nK44065-1140<\/td>\n<\/tr>\n
    Suzuki<\/strong><\/td>\n51127-49HE0<\/td>\n<\/tr>\n
    Yamaha<\/strong><\/td>\n5XE-23171-L0<\/td>\n<\/tr>\n
    Triumph<\/strong><\/td>\nT2045320<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Cross-reference availability can vary by catalog source and model year.<\/p>\n

    <\/h3>\n

    <\/h3>\n

    PTFE Low-Friction Surface<\/h3>\n

    The external PTFE coating creates the primary low-friction sliding surface of the bushing.<\/p>\n

    Reducing friction at this interface helps:<\/p>\n

      \n
    • promote smoother fork compression and rebound;<\/li>\n
    • reduce sliding resistance;<\/li>\n
    • minimize wear between moving components;<\/li>\n
    • improve suspension sensitivity;<\/li>\n
    • maintain more consistent fork action over time.<\/li>\n<\/ul>\n

      This is particularly important on high-performance KYB forks, where excessive friction can negatively affect small-bump sensitivity and overall suspension response.<\/p>\n

      <\/h3>\n

      <\/h3>\n

      Copper-Coated Inner Surface<\/h3>\n

      The inside of the Athena bushing is coated with copper.<\/p>\n

      Copper provides good thermal conductivity, helping distribute heat generated during repeated fork movement.<\/p>\n

      It also provides additional protection against oxidation and corrosion, contributing to long-term component durability under demanding environmental and riding conditions.<\/p>\n

      <\/h3>\n

      <\/h3>\n

      Service Quantity<\/h3>\n

      Each package contains:<\/p>\n

      1 \u00d7 Athena S41TE48K Fork Bushing<\/strong><\/p>\n

      One bushing services one fork leg<\/strong>.<\/p>\n

      For a complete two-leg fork overhaul, Athena specifies the need for:<\/p>\n

        \n
      • 2 \u00d7 S41TE48K external-PTFE bushings<\/strong><\/li>\n
      • 2 \u00d7 corresponding internal-PTFE fork bushings<\/strong><\/li>\n<\/ul>\n

        The complementary internally coated bushing must be selected according to the exact KYB fork configuration.<\/p>\n

        <\/h3>\n

        <\/h3>\n

        Application & Compatibility<\/h3>\n

        The S41TE48K<\/strong> is designed for compatible Kayaba \/ KYB 48 mm front forks<\/strong> using the corresponding 47 \u00d7 49 \u00d7 20 mm<\/strong> bushing specification.<\/p>\n

        This bushing is used across a wide range of off-road, motocross, Enduro, and competition motorcycles from several manufacturers.<\/p>\n

        Compatibility should always be verified against the actual fork fitted to the motorcycle, especially where suspension components have previously been replaced or modified.<\/p>\n","protected":false},"excerpt":{"rendered":"

        Athena high-slide replacement fork bushing for Kayaba \/ KYB 48 mm front forks, featuring a high-strength steel body, external PTFE low-friction coating, and internal copper coating for smooth suspension movement, wear resistance, and long service life.<\/p>\n","protected":false},"featured_media":236796,"template":"","meta":[],"product_brand":[267],"product_cat":[107],"product_tag":[],"class_list":["post-236805","product","type-product","status-publish","has-post-thumbnail","product_brand-athena","product_cat-fork-bushings","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/innteck.it\/innteck-usa\/wp-json\/wp\/v2\/product\/236805","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innteck.it\/innteck-usa\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/innteck.it\/innteck-usa\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/innteck.it\/innteck-usa\/wp-json\/wp\/v2\/media?parent=236805"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/innteck.it\/innteck-usa\/wp-json\/wp\/v2\/product_brand?post=236805"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/innteck.it\/innteck-usa\/wp-json\/wp\/v2\/product_cat?post=236805"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/innteck.it\/innteck-usa\/wp-json\/wp\/v2\/product_tag?post=236805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}