{"product_id":"ohlins-bmw-f80-f82-f87-7-5n-mm-front-and-rear-helper-spring-m2-m2-competition-m3-m4","title":"Öhlins 05173-12 Helper\/Tender\/Keeper Coilover Spring 61mm ID 7.5 N\/mm for BMW F87 M2\/M2 Competition, F80 M3, F82\/F83 M4 | Road \u0026 Track DFV | Front\/Rear Replacement Droop Spring 73mm Length 60mm Stroke","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003eÖhlins 05173-12 Helper Coil Spring - 61 mm ID - 7.5 N\/mm - BMW F87 M2, F80 M3, F82 F83 M4 - R\u0026amp;T DFV\u003c\/h2\u003e\n\n  \u003cp\u003eUnlock consistent grip and quiet, precise suspension behaviour with the genuine Öhlins 05173-12 helper coil spring. This tender or keeper spring is the correct 61 mm internal diameter unit used on Öhlins Road and Track DFV kits for the BMW F87 M2 and M2 Competition, F80 M3, and F82 F83 M4. Rated at 7.5 N\/mm, it maintains main spring tension through full droop, stabilises the chassis, reduces noises from unseated coils, and keeps the tyre in contact with the tarmac for sharper turn-in and traction on both road and track.\u003c\/p\u003e\n\n  \u003cp\u003eWe choose this Öhlins helper spring for our own builds and customer cars at MJ Modifications, and the feedback is consistently positive: better balance, more predictable handling and smoother operation from quality hardware that just works.\u003c\/p\u003e\n\n  \u003ch3\u003eWhy this Öhlins helper spring is a smart upgrade\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eGenuine Öhlins service part for R\u0026amp;T DFV applications on BMW F-series M cars\u003c\/li\u003e\n    \u003cli\u003eKeeps the main spring seated at full extension for quiet, controlled suspension travel\u003c\/li\u003e\n    \u003cli\u003eImproves traction, steering response and cornering consistency on B-roads and circuit\u003c\/li\u003e\n    \u003cli\u003eHelps maintain accurate ride height, alignment and corner-weighting settings\u003c\/li\u003e\n    \u003cli\u003eDirect-fit 61 mm ID specification used by Öhlins for seamless integration\u003c\/li\u003e\n    \u003cli\u003eIdeal refresh for worn or sagged helper coils or to complete an Öhlins coilover kit\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTechnical details\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePart number: Öhlins 05173-12\u003c\/li\u003e\n    \u003cli\u003eSpring rate: 7.5 N\/mm\u003c\/li\u003e\n    \u003cli\u003eInner diameter: 61 mm\u003c\/li\u003e\n    \u003cli\u003eFree length: 73 mm\u003c\/li\u003e\n    \u003cli\u003eStroke: 60 mm\u003c\/li\u003e\n    \u003cli\u003eAxle position: front or rear\u003c\/li\u003e\n    \u003cli\u003eSold individually - price is for one helper spring\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eVehicle compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW F87 2 Series\n      \u003cul\u003e\n        \u003cli\u003eM2 and M2 Competition\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003eBMW F80 3 Series\n      \u003cul\u003e\n        \u003cli\u003eM3, M3 Competition, M3 CS\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003eBMW F82 F83 4 Series\n      \u003cul\u003e\n        \u003cli\u003eM4, M4 Competition\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003eDesigned for use with Öhlins Road and Track DFV coilovers\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat you receive\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Öhlins helper spring 7.5 N\/mm, 61 mm ID - part number 05173-12\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eManufacturer and warranty\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBrand: Öhlins\u003c\/li\u003e\n    \u003cli\u003eWarranty: Öhlins one-year warranty\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eProfessional fitting\u003c\/h3\u003e\n  \u003cp\u003eWant it installed, aligned and corner-weighted correctly the first time? Book expert fitting with MJ Modifications in Warwickshire. Request a quote at \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eSearch phrases our customers use\u003c\/h3\u003e\n  \u003cp\u003eBMW M2 coilover helper spring, F80 M3 tender spring, F82 M4 keeper spring, Öhlins DFV helper coil 61 mm ID, 7.5 N\/mm helper spring BMW, Öhlins Road and Track DFV helper, BMW F87 helper coil front, BMW F83 helper coil rear, Öhlins 05173 12, 73 mm helper spring, 60 mm stroke helper spring, coilover droop spring BMW M2 M3 M4, replacement helper spring for Öhlins R\u0026amp;T, BMW F-series M chassis suspension upgrade, handling improvement spring BMW M car.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ohlins","offers":[{"title":"Default Title","offer_id":56005699305858,"sku":null,"price":88.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/OhlinsBMWF80F82F87FrontHelperSpring_M2_M2Competition_M3_M4_-1_1946x_82c79156-f273-4e22-b152-87f6a3b8b989.jpg?v=1764021648","url":"https:\/\/mjmodifications.co.uk\/products\/ohlins-bmw-f80-f82-f87-7-5n-mm-front-and-rear-helper-spring-m2-m2-competition-m3-m4","provider":"MJ Modifications","version":"1.0","type":"link"}