{"product_id":"round-boost-aero-for-sram-8-bolts-mtb","title":"Round Boost AERO for SRAM 8-bolts MTB (T-Type)","description":"\u003cstrong\u003eThe original design ALUGEAR chainring “AERO MTB”\u003c\/strong\u003e\n\n\u003ch4\u003e\u003cstrong\u003eTECHNICAL SPECIFICATIONS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOffset:\u003c\/strong\u003e BOOST; 26T-38T 3,0mm\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChainline:\u003c\/strong\u003e 26T-38T 55,0mm with WIDE crank\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight: \u003c\/strong\u003e26T- 54g; 28T- 59g; 30T- 64g; 32T- 68g; 34T- 76g; 36T- 83g; 38T- 89g\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter: \u003c\/strong\u003e26T- 115mm; 28T- 124mm; 30T- 131,5mm; 32T- 138,6mm; 34T- 148mm; 36T- 154,2mm; 38T- 161,3mm\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial: \u003c\/strong\u003e7075-T6 aluminum\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade: \u003c\/strong\u003eCNC milling\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface coating: \u003c\/strong\u003eAnodizing\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eCOMPATIBILITY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\nFor cranks MTB SRAM 8 bolts Direct Mount, BB spindle interface: DUB\n\u003c\/li\u003e\n\u003cli\u003e\nIn the case of using the 3mm offset chainring with MTB Standard axle type cranks, the chain line will be 52mm (the hub spacing (O.L.D.) is 148mm)\nIn the case of using the 3mm offset chainring with MTB WIDE axle type cranks, the chain line will be 55mm (the hub spacing (O.L.D.) is 148mm)\n\u003c\/li\u003e\n\u003cli\u003e\nCompatible with SRAM T-Type Transmission\n\u003c\/li\u003e\n\u003cli\u003e\nWe have designed universal teeth that work with other chains as well: SRAM chains - 11sp, 12sp Eagle, 12sp T-Type; Shimano chains - 11sp, 12sp HG+\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eINFORMATION\u003c\/strong\u003e\u003c\/h4\u003e\nALUGEAR is specialized in the production of high-quality bicycle components. We are one of the first who starts to produce 8-bolts MTB chainrings\nMost have used a 3-bolts design for direct mount chainrings. But now the 8-bolts standard has come to be used for DUB MTB cranks and Power Meters more\nWe offer Оval and Round chainrings for 8-bolts cranks in several designs: AERO, \u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/chainrings-1x\/253-13239-round-boost-for-sram-8-bolts-mtb.html#\/26-size-26t\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eBeach Ball\u003c\/a\u003e\u003c\/span\u003e, \u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/chainrings-1x\/223-11271-round-boost-for-sram-8-bolts-mtb.html#\/26-size-26t\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eELM\u003c\/a\u003e\u003c\/span\u003e, the large range tooth count of 26T-38T, and 8 color options\nALUGEAR chainrings are some of the lightest chainrings on the market. Using our experience and vigorous testing, we tweaked the arm design and strategically machined the chainrings so that only minimal sacrifices were made in impact strength in exchange for large gains in weight reduction\nThe chainrings are CNC machined from 7075 T6 aluminum and hard coat industrially anodized to provide protection from mechanical impacts, a good look, and an excellent tactile feel to each of the chainrings that lasts a long time\u003cbr\u003eA unique tooth profile eliminates chain noise, reduces wear, and provides smooth operation on the entire system of all the most common combinations, such as 10, 11, and 12-speed drives. The Narrow Wide teeth guide the chain reliably\nThe tooth profile is specially designed for use with MTB chains\nALUGEAR chainrings are the best choice if you are looking for a technologically sound chainring with a unique design\n\u003cspan\u003eQuality Manufacturing - proudly made in Poland\u003c\/span\u003e\n\n\u003ch4\u003e\u003cstrong\u003eRECOMMENDATIONS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\nUse the \u003cspan\u003e\u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/home\/392-screw-set-m4x8-mm-for-8-bolts-direct-mount-chainrings.html\" rel=\"noreferrer noopener\" target=\"_blank\"\u003escrew set M4x8mm\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e to mount on the crank\n\u003c\/li\u003e\n\u003cli\u003e\nWe recommend the use of a clutch system rear derailleur for the best chain security\n\u003c\/li\u003e\n\u003cli\u003e\nIt is also a good idea to use a new chain with your new ALUGEAR chainring\n\u003c\/li\u003e\n\u003cli\u003e\nIt is recommended to use a well-lubricated chain on every ride\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eINSTALLATION INSTRUCTIONS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/img\/cms\/Round%20Alugear%20Chainring%20Installation%20.png\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eThe chainring installation scheme\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/img\/cms\/mount%208bolts.png\" rel=\"noreferrer noopener\" target=\"_blank\"\u003e\u003cspan\u003eInstallation of 8 bolts chainring\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\n\u003cstrong\u003eOPTIONS OF DIRECT MOUNT CRANKS\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\nMost MTB cranksets have traditionally used a 3-bolts mounting, but the 8-bolts mounting has been used on the Quarq Power Meter cranks. Now some non-power meter SRAM MTB cranks use the 8-bolts mounting\n\n\u003ch4\u003e\n\u003cstrong\u003eCHAIN LINE\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\nChainline is measured from the axis of the centerline of the frame to the center of the tooth of the chainring\nA correct chain line is when the middle of the front chainring and the middle of the cassette should be at the same distance from the axis that goes along the middle of the bicycle frame from the front to the back. That means the chain will run completely straight. However, sometimes we have to reduce the offset of large (\u003cspan\u003e\u003cstrong\u003e\u0026gt;\u003c\/strong\u003e \u003c\/span\u003e36T) chainrings for MTB so that it fits into the frame and do not touch the chainstay\nThe hub spacing is measured from the outside faces of the end caps, where they come into contact with the frame's dropouts. The spacing dimension is commonly referred to as the \"O.L.D.\" (Over-Lock-nut Distance) Now the frame manufacturers produce Boost (148mm O.L.D.) spacing mountain bikes with a 55mm chain line (like the Scott Spark)\n\n\u003ch4\u003e\u003cstrong\u003eOFFSET\u003c\/strong\u003e\u003c\/h4\u003e\n\nOffset is the distance from the chainring mounting surface to the outer edge of the wide tooth on the chainring.","brand":"alugear","offers":[{"title":"26T \/ Black","offer_id":52808267858258,"sku":"5908374249924","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"26T \/ Silver","offer_id":52808267923794,"sku":"5908374249931","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"26T \/ Red","offer_id":52808267956562,"sku":"5908374249948","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"26T \/ Blue","offer_id":52808267989330,"sku":"5908374249955","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"26T \/ Orange","offer_id":52808268022098,"sku":"5908374249962","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"26T \/ Green","offer_id":52808268054866,"sku":"5908374249979","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"26T \/ Gold","offer_id":52808268087634,"sku":"5908374249986","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"26T \/ Purple","offer_id":52808268120402,"sku":"5908374259589","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"28T \/ Black","offer_id":52808268153170,"sku":"5908374249993","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"28T \/ Silver","offer_id":52808268185938,"sku":"5908374250005","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"28T \/ Red","offer_id":52808268218706,"sku":"5908374250012","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"28T \/ Blue","offer_id":52808268251474,"sku":"5908374250029","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"28T \/ Orange","offer_id":52808268284242,"sku":"5908374250036","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"28T \/ Green","offer_id":52808268317010,"sku":"5908374250043","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"28T \/ Gold","offer_id":52808268349778,"sku":"5908374250050","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"28T \/ Purple","offer_id":52808268382546,"sku":"5908374259596","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"30T \/ Black","offer_id":52808268415314,"sku":"5908374250067","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"30T \/ Silver","offer_id":52808268448082,"sku":"5908374250074","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"30T \/ Red","offer_id":52808268480850,"sku":"5908374250081","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"30T \/ Blue","offer_id":52808268513618,"sku":"5908374250098","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"30T \/ Orange","offer_id":52808268546386,"sku":"5908374250104","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"30T \/ Green","offer_id":52808268579154,"sku":"5908374250111","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"30T \/ Gold","offer_id":52808268611922,"sku":"5908374250128","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"30T \/ Purple","offer_id":52808268644690,"sku":"5908374259602","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"32T \/ Black","offer_id":52808268677458,"sku":"5908374250135","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"32T \/ Silver","offer_id":52808268710226,"sku":"5908374250142","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"32T \/ Red","offer_id":52808268742994,"sku":"5908374250159","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"32T \/ Blue","offer_id":52808268775762,"sku":"5908374250166","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"32T \/ Orange","offer_id":52808268808530,"sku":"5908374250173","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"32T \/ Green","offer_id":52808268841298,"sku":"5908374250180","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"32T \/ Gold","offer_id":52808268874066,"sku":"5908374250197","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"32T \/ Purple","offer_id":52808268906834,"sku":"5908374259619","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"34T \/ Black","offer_id":52808268939602,"sku":"5908374250203","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"34T \/ Silver","offer_id":52808268972370,"sku":"5908374250210","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"34T \/ Red","offer_id":52808269005138,"sku":"5908374250227","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"34T \/ Blue","offer_id":52808269037906,"sku":"5908374250234","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"34T \/ Orange","offer_id":52808269070674,"sku":"5908374250241","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"34T \/ Green","offer_id":52808269103442,"sku":"5908374250258","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"34T \/ Gold","offer_id":52808269136210,"sku":"5908374250265","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"34T \/ Purple","offer_id":52808269168978,"sku":"5908374259626","price":79.0,"currency_code":"EUR","in_stock":true},{"title":"36T \/ Black","offer_id":52808269201746,"sku":"5908374250272","price":82.0,"currency_code":"EUR","in_stock":true},{"title":"36T \/ Silver","offer_id":52808269234514,"sku":"5908374250289","price":82.0,"currency_code":"EUR","in_stock":true},{"title":"36T \/ Red","offer_id":52808269267282,"sku":"5908374250296","price":82.0,"currency_code":"EUR","in_stock":true},{"title":"36T \/ Blue","offer_id":52808269300050,"sku":"5908374250302","price":82.0,"currency_code":"EUR","in_stock":true},{"title":"36T \/ Orange","offer_id":52808269332818,"sku":"5908374250319","price":82.0,"currency_code":"EUR","in_stock":true},{"title":"36T \/ Green","offer_id":52808269365586,"sku":"5908374250326","price":82.0,"currency_code":"EUR","in_stock":true},{"title":"36T \/ Gold","offer_id":52808269398354,"sku":"5908374250333","price":82.0,"currency_code":"EUR","in_stock":true},{"title":"36T \/ Purple","offer_id":52808269431122,"sku":"5908374259633","price":82.0,"currency_code":"EUR","in_stock":true},{"title":"38T \/ Black","offer_id":52808269463890,"sku":"5908374250340","price":89.0,"currency_code":"EUR","in_stock":true},{"title":"38T \/ Silver","offer_id":52808269496658,"sku":"5908374250357","price":89.0,"currency_code":"EUR","in_stock":true},{"title":"38T \/ Red","offer_id":52808269529426,"sku":"5908374250364","price":89.0,"currency_code":"EUR","in_stock":true},{"title":"38T \/ Blue","offer_id":52808269562194,"sku":"5908374250371","price":89.0,"currency_code":"EUR","in_stock":true},{"title":"38T \/ Orange","offer_id":52808269594962,"sku":"5908374250388","price":89.0,"currency_code":"EUR","in_stock":true},{"title":"38T \/ Green","offer_id":52808269627730,"sku":"5908374250395","price":89.0,"currency_code":"EUR","in_stock":true},{"title":"38T \/ Gold","offer_id":52808269660498,"sku":"5908374250401","price":89.0,"currency_code":"EUR","in_stock":true},{"title":"38T \/ Purple","offer_id":52808269693266,"sku":"5908374259640","price":89.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/2605\/1666\/files\/image-1_963fdbf8-e613-4b8c-8499-8f0a2d8a74f0.jpg?v=1772108176","url":"https:\/\/alugear.com\/en-eu\/products\/round-boost-aero-for-sram-8-bolts-mtb","provider":"alugear","version":"1.0","type":"link"}