{"product_id":"sp-s4-suspension-seat-post","title":"SP-S4 Suspension Seatpost 27.2\/30.9\/31.6mm 350mm 50mm Travel Adjustable","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\" style=\"text-align: left;\"\u003eSP-S4 Suspension Seat Post\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003eUpgrade your riding comfort with the SP-S4 Suspension Seat Post. Designed with a mechanical linkage suspension system and an internal stainless-steel spring, it helps absorb road vibration and impacts from uneven surfaces for a smoother and more comfortable riding experience.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eAvailable in three common seatpost diameters — \u003cstrong\u003e27.2 mm, 30.9 mm and 31.6 mm\u003c\/strong\u003e — the SP-S4 is suitable for a wide range of bicycles and e-bikes.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003eKey Features\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e50 mm suspension travel\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eAdjustable suspension stiffness\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eAluminum alloy construction\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eInternal stainless-steel suspension spring\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e350 mm seatpost length\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThree diameter options: 27.2 \/ 30.9 \/ 31.6 mm\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eAdjustable saddle position\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eClearly marked minimum insertion line\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eSuitable for bicycles and e-bikes\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eDesigned for commuting, touring and everyday riding\u003c\/p\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\" style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/2_S7ad033408b3b43abaf14a8d7008cb9713.jpg_2K_20260923171709.jpg?v=1790155269\" alt=\"\"\u003e\u003c\/h1\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\" style=\"text-align: left;\"\u003e50 mm Suspension Travel\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp style=\"text-align: left;\"\u003eThe SP-S4 suspension structure provides up to \u003cstrong\u003e50 mm of shock-absorbing travel\u003c\/strong\u003e, helping reduce impacts transmitted from rough roads, small bumps and uneven surfaces to the rider.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe linkage suspension design allows the saddle to move in a controlled way when encountering road vibration, helping improve comfort during longer rides.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eIdeal for:\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003eUrban commuting\u003c\/li\u003e\n\u003cli\u003eBike paths\u003c\/li\u003e\n\u003cli\u003eTouring\u003c\/li\u003e\n\u003cli\u003eE-bike riding\u003c\/li\u003e\n\u003cli\u003eGravel and uneven roads\u003c\/li\u003e\n\u003cli\u003eDaily recreational cycling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/1_S99d84459376241559d5c69cb9942a5dfZ.jpg_2K_20260923172029.jpg?v=1790155276\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\" style=\"text-align: left;\"\u003eAdjustable Suspension Stiffness\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp style=\"text-align: left;\"\u003eThe suspension preload can be adjusted according to rider weight, road conditions and personal riding preference.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eUse a \u003cstrong\u003e6 mm hex wrench\u003c\/strong\u003e at the bottom of the seatpost to adjust the spring preload.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eTurn toward:\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003e“+” → Firmer suspension\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003e“–” → Softer suspension\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThis allows riders to customize the suspension response for a more comfortable and controlled riding experience.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/16_S8a984e9c451c4d9bbfa5dca26eed7ff9o.jpg_2K_20260922233222.jpg?v=1790091173\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\" style=\"text-align: left;\"\u003eStainless-Steel Suspension Spring\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp style=\"text-align: left;\"\u003eThe SP-S4 uses an internal stainless-steel spring as part of its suspension system.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe spring works together with the linkage structure to help absorb vibration and impacts while maintaining stable support during riding.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003eStable suspension response\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eReduced road vibration\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eLow-noise operation\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eDurable internal structure\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eSuitable for repeated everyday use\u003c\/li\u003e\n\u003cli\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\" style=\"text-align: left;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/13_Scab02c4f39b6439f90c885d82327f229T.jpg_2K_20260923171929.jpg?v=1790155275\" alt=\"\"\u003eAluminum Alloy Construction\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp style=\"text-align: left;\"\u003eThe main seatpost body is manufactured from aluminum alloy with a matte surface finish.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eIt provides a balance between structural strength, durability and everyday riding performance.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003eAluminum alloy construction\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eCNC-machined components\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eMatte surface finish\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eWear resistant\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eCorrosion resistant\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eDesigned for long-term bicycle use\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/4_Sf6dd6ddfba324918ab210ba9ccbd0685J.jpg_2K_20260923171822.jpg?v=1790155275\" alt=\"\"\u003eAvailable Sizes\n\u003cp style=\"text-align: left;\"\u003eThe SP-S4 is available in three seatpost diameters:\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003e27.2 mm × 350 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003e30.9 mm × 350 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003e31.6 mm × 350 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003ePlease check the diameter marking on your original seatpost or measure the \u003cstrong\u003einside diameter of the bicycle seat tube \/ outside diameter of the existing seatpost\u003c\/strong\u003e before ordering.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eChoosing the correct diameter is essential for safe installation.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/3_S3b96cb4a13534d1d83b2a6c20e54c382b.jpg_2K_20260923171955.jpg?v=1790155275\" alt=\"\"\u003e\u003cbr\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eProduct Dimensions\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch3\u003e27.2 mm Version\u003c\/h3\u003e\n\u003cp\u003eDiameter: \u003cstrong\u003e27.2 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLength: \u003cstrong\u003e350 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLower Tube Length: \u003cstrong\u003e240 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuspension Head Height: Approx. \u003cstrong\u003e80 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWeight: Approx. \u003cstrong\u003e850 g\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e30.9 mm Version\u003c\/h3\u003e\n\u003cp\u003eDiameter: \u003cstrong\u003e30.9 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLength: \u003cstrong\u003e350 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLower Tube Length: \u003cstrong\u003e240 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuspension Head Height: Approx. \u003cstrong\u003e80 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWeight: Approx. \u003cstrong\u003e923 g\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e31.6 mm Version\u003c\/h3\u003e\n\u003cp\u003eDiameter: \u003cstrong\u003e31.6 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLength: \u003cstrong\u003e350 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLower Tube Length: \u003cstrong\u003e240 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuspension Head Height: Approx. \u003cstrong\u003e80 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWeight: Approx. \u003cstrong\u003e942 g\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eMeasurements and weight may have small production tolerances.\u003c\/em\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/3_S3b96cb4a13534d1d83b2a6c20e54c382b.jpg_2K_20260923171955.jpg?v=1790155275\" alt=\"\"\u003e\u003cbr\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eSafe Installation Range\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eFor safe installation, always observe the \u003cstrong\u003eMINIMUM INSERT\u003c\/strong\u003e mark printed on the seatpost.\u003c\/p\u003e\n\u003cp\u003eThe seatpost must be inserted into the bicycle frame beyond the minimum insertion line.\u003c\/p\u003e\n\u003cp\u003eDo not install the seatpost above the permitted minimum insertion marking.\u003c\/p\u003e\n\u003ch3\u003eReference Dimensions\u003c\/h3\u003e\n\u003cp\u003eAdjustment \/ exposed range: approximately \u003cstrong\u003e140 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMinimum insertion section: approximately \u003cstrong\u003e75 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlways confirm that the seatpost is securely clamped before riding.\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/6_Sa13e45bf21ec4036bb85b0ff25b13fe0X.jpg_2K_20260923171648.jpg?v=1790155269\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eAdjustable Saddle Position\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThe upper saddle clamp allows the saddle position and angle to be adjusted to suit the rider's preferred riding posture.\u003c\/p\u003e\n\u003cp\u003eBefore riding, make sure all saddle clamp bolts are correctly tightened.\u003c\/p\u003e\n\u003cp\u003eThe saddle clamp shown on the product is compatible with standard bicycle saddle rails.\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/20_S79d78309ab484df8b9f4e5849fa9b6b6S.jpg_2K_20260923171854.jpg?v=1790155276\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eSuspension Linkage Design\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThe multi-link suspension structure allows the seatpost head to move under load while keeping the seatpost body securely installed inside the bicycle frame.\u003c\/p\u003e\n\u003cp\u003eMultiple pivot points help guide the movement of the suspension system and provide controlled shock absorption.\u003c\/p\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eProduct Specifications\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e SP-S4\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Bicycle Suspension Seat Post\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum Alloy\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuspension:\u003c\/strong\u003e Mechanical Spring Suspension\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpring Material:\u003c\/strong\u003e Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuspension Travel:\u003c\/strong\u003e Approx. 50 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeatpost Length:\u003c\/strong\u003e 350 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTube Length:\u003c\/strong\u003e Approx. 240 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuspension Head Height:\u003c\/strong\u003e Approx. 80 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable Diameters:\u003c\/strong\u003e 27.2 mm \/ 30.9 mm \/ 31.6 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdjustment Tool:\u003c\/strong\u003e 6 mm Hex Wrench\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e27.2 mm Weight:\u003c\/strong\u003e Approx. 850 g\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e30.9 mm Weight:\u003c\/strong\u003e Approx. 923 g\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e31.6 mm Weight:\u003c\/strong\u003e Approx. 942 g\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Bicycle \/ E-Bike \/ Commuter Bike \/ Touring Bike\u003c\/p\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eImportant Size Notice\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003ePlease confirm your bicycle seatpost diameter before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e27.2 mm, 30.9 mm and 31.6 mm are different sizes and are not interchangeable without a suitable adapter.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCheck the diameter printed on your existing seatpost whenever possible.\u003c\/p\u003e\n\u003cp\u003eDo not select a size based only on the bicycle brand, wheel diameter or appearance.\u003c\/p\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eInstallation \u0026amp; Safety Notes\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003col\u003e\n\u003cli\u003eConfirm the correct seatpost diameter before installation.\u003c\/li\u003e\n\u003cli\u003eInsert the seatpost beyond the \u003cstrong\u003eMINIMUM INSERT\u003c\/strong\u003e line.\u003c\/li\u003e\n\u003cli\u003eSecurely tighten the bicycle seatpost clamp before riding.\u003c\/li\u003e\n\u003cli\u003eSecurely tighten the saddle clamp bolts.\u003c\/li\u003e\n\u003cli\u003eAdjust spring preload using a 6 mm hex wrench when necessary.\u003c\/li\u003e\n\u003cli\u003eCheck all bolts periodically, especially after the first few rides.\u003c\/li\u003e\n\u003cli\u003eStop using the product if abnormal movement, looseness or damage is detected.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003ePackage Includes\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e1 × SP-S4 Suspension Seat Post\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eBicycle saddle and installation tools are not included unless specifically stated in the selected package.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"INGIMO","offers":[{"title":"27.2 mm","offer_id":52819034308890,"sku":null,"price":34.42,"currency_code":"USD","in_stock":true},{"title":"30.9 mm","offer_id":52819034341658,"sku":null,"price":34.42,"currency_code":"USD","in_stock":true},{"title":"31.6 mm","offer_id":52819034374426,"sku":null,"price":34.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1006\/8993\/6666\/files\/6fb53c51539b47559cf0d122a832cf63_01f461c1-4917-4614-8ff8-f63097003805.png?v=1788948010","url":"https:\/\/indigoebike.com\/products\/sp-s4-suspension-seat-post","provider":"INDIGO VEHICLE","version":"1.0","type":"link"}