{"product_id":"mmx-performance-crank-hub-single-piece-upgrade-i-bmw-s55-i-n55","title":"MMX Performance - CRANK HUB SINGLE PIECE UPGRADE I BMW S55 I N55","description":"\u003cp style=\"text-align: left;\"\u003eIssues relating to the standard three-piece crank hub on the S55 \u0026amp; N55 engine are (unfortunately) widely known, but these are fully addressed with the installation of the MMR Performance one-piece billet Crank Hub, together with the option to add our Capture Plate for ultimate security. \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe OE crank hub unit's friction plate are known to slip, causing the timing to alter enough that piston-to-valve contact can occur and, if not totally standard and within the warranty period, leaves owners with a very expensive repair bill!\u003cbr\u003e\u003cbr\u003eWe have developed this Single-Piece Crank Hub together with our optional Capture Plate to ensure owners have complete peace of mind, whether on an untuned factory car or equally for those that wish to increase the power and torque output without ever having to worry again; MMR have engineered the most comprehensive solution on the market and at one of the most compelling price points.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: #808080;\"\u003e\u003cem\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/3206\/8967\/files\/oem-vs-mmr_51388961325_o-Quick_Preset_2729x1737_d6631e68-21ab-4969-bf9f-ff2c021ef2d4_480x480.png?v=1664208383\" alt=\"\" style=\"display: block; margin-left: auto; margin-right: auto;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/3206\/8967\/files\/oem-vs-mmr_51388961325_o-Quick_Preset_2729x1737_d6631e68-21ab-4969-bf9f-ff2c021ef2d4_480x480.png?v=1664208383\" data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: #808080;\"\u003e\u003cem data-mce-fragment=\"1\"\u003eOE Multi-Piece Crank Hub (L) compared to MMR Single Piece Crank Hub (R)\u003c\/em\u003e\u003cem data-mce-fragment=\"1\"\u003e \u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe crank hub is machined from billet EN36 steel that's been heat-treated with a 0.75mm case hardening, making it incredibly strong and durable. The one-piece design ensures the friction plates can no longer slip and with a new crank bolt tightened appropriately, this alone delivers the transformational improvement in reliability versus the OE version.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/3206\/8967\/files\/Crank_Hub-2-Quick_Preset_526x373_f2ff7fff-fa52-4e11-a989-c03680621432_480x480.png?v=1664208355\" alt=\"\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/3206\/8967\/files\/Crank_Hub-2-Quick_Preset_526x373_f2ff7fff-fa52-4e11-a989-c03680621432_480x480.png?v=1664208355\" data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem\u003eSingle-Piece Crank Hub (L) with Capture Plate (R)\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAs MMR Performance offers two versions of the Single-Piece Crank Hub, which is best for you, pinned or unpinned?  For most standard to Stage 1 tuned S55 \u0026amp; N55 engines, this\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e unpinned MMR Single-Piece Crank Hub is more than sufficient. Installation is more straightforward as the end of the crankshaft does not need to be precision drilled to mount the four locating dowels. However, for high power\/torque engines tuned beyond this level, \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003ewe \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003erecommend the upgraded pinned version of the Crank Hub that\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eincorporates\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e the 4-pin dowel drive mounting for the ultimate engine security. The 4-pin version is part number MMR20-1004.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eFinally. alongside the Crank Hub, the optional MMR Capture Plate ensures that owners have complete peace of mind. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eThis Capture Plate removes the possibility for the crank bolt to be able to loosen with the engine's vibrations or harmonics. The Capture Plate is an additional billet aluminium hat that securely bolts over the entire head of the crank bolt, making it literally impossible for the bolt to come undone. Please select from the product option below at point of ordering to include a Capture Plate with your order.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eS55 and N55 bolt torque – 100Nm initial torque plus 270 degrees.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/3206\/8967\/files\/CRANK_HUB_480x480.jpg?v=1664264345\" alt=\"\" width=\"351\" height=\"208\" style=\"display: block; margin-left: auto; margin-right: auto;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/3206\/8967\/files\/CRANK_HUB_480x480.jpg?v=1664264345\" data-mce-fragment=\"1\"\u003eFITMENT DETAILS\u003cbr\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"text-align: left;\"\u003eThis will fit all models with N55 and S55 engines. Most popular models:\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eBMW M2 F87 2015-2018\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eBMW M2 Competition F87 2018-2021\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eBMW M3 F80 - 2014-2019\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eBMW M4 F82 - 2014-2020\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eBMW M135i F2x 2011 - 2019\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eBMW M235i F2x 2013 - 2020\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eBMW 335i F3x 2011-2019\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eBMW 435i F3x 2013-2020\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"MMX Performance (Formally MMR)","offers":[{"title":"With Capture Plate","offer_id":51064425251165,"sku":"MMR20-1003FK","price":653.89,"currency_code":"GBP","in_stock":true},{"title":"without Capture Plate","offer_id":51064425283933,"sku":"MMR20-1001","price":562.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/0411\/2989\/files\/one-_piece_crank_hub_capture_plate_740x_progressive_png.jpg?v=1714832250","url":"https:\/\/nineteen72performance.co.uk\/products\/mmx-performance-crank-hub-single-piece-upgrade-i-bmw-s55-i-n55","provider":"Nineteen72 Performance","version":"1.0","type":"link"}