{"product_id":"130-bcd-gravel-cx-road-chainrings","title":"130 BCD Gravel \/ CX \/ Road Chainrings","description":"\u003cp\u003eWolf Tooth was first to market with cyclocross 1x specific chainrings because we saw cyclocross as the perfect use for our Drop-Stop\u003csup\u003e®\u003c\/sup\u003e technology. Since their release, the uses for these rings has expanded beyond cyclocross to commuting, gravel riding, and even full on-road applications with the giant 52t rings. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFits 130 BCD 5 arm cranksets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDrop-Stop technology. On Wolf Tooth’s patented wide\/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris which reduces friction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAlternating wide\/narrow tooth pattern prevents chain derailment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThese rings are for use with 130 BCD 5 arm cranksets. \u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDo NOT fit on the cranksets for Shimano DA 9000 \/ Ultegra 6800\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eNot compatible with Campy CX10\/11.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSRAM Exogram cranksets with inset nut must use stock fifth bolt + spacer(s). The Force CX1 bolt features a fifth bolt with 1x specific shoulder. This kit can be found online. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e38T important note: The chain may contact the spider arm slightly when using the 38T chainring (see last photo in the product images).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWe recommend filing a small chamfer on the spider arm but you can also just install it and let the chain do the work. This is only an issue with the 38T as the 130 BCD was designed for 39T smallest ring.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eStock 2x bolts will not work.  You will need bolts like our\u003ca href=\"https:\/\/www.wolftoothcomponents.com\/collections\/chainring-bolts\/products\/set-of-5-chainring-bolts-nuts-for-1x\"\u003e 6mm bolts\u003c\/a\u003e which are optimized for single ring mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eThis 1x chainring and can be mounted in either the inner or outer ring position of a double crankset but can not be used in a 2x setup.\u003c\/li\u003e\n\u003cli\u003eChainline - The most common mounting is in the outer ring position because of chainstay clearance. The ring centerline is ~2mm from the ring's mounting face so they usually sit about 2mm closer to the frame than the stock big ring (depends on the stock ring) \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"PdpSqImgLinks\"\u003e\n\u003ca href=\"https:\/\/www.wolftoothcomponents.com\/pages\/how-to-measure-bolt-circle-diameter-bcd\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/0230\/9291\/files\/BCDmeasurementGuide_compact_a0845f3a-7496-4df4-a34a-fed3ac9931ea_compact.png?v=1548116045\"\u003e\u003c\/a\u003e  \u003ca style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 1.4em;\" title=\"Chain compatibility by chainring tooth profile\" href=\"https:\/\/www.wolftoothcomponents.com\/pages\/chain-compatibility-by-chainring-tooth-profile\" data-mce-style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 1.4em;\"\u003e\u003cimg height=\"159\" width=\"159\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0230\/9291\/files\/ChainCompatibility_480x480.jpg?v=1592260735\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch2\u003eRecommendations\u003c\/h2\u003e\n\u003cp\u003eIf you plan to ride in very muddy conditions, we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur. Without these precautions, you may experience chaindrops and\/or chainsuck.\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eRelated Products\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.wolftoothcomponents.com\/collections\/chainring-bolts\"\u003eChainring bolts\u003c\/a\u003e - \u003cspan\u003estock 2x bolts will not work. \u003c\/span\u003e6mm bolts\u003cspan\u003e are needed for single ring mounting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.wolftoothcomponents.com\/collections\/cassette-cogs\/products\/tanpan\"\u003eTanpan\u003c\/a\u003e - allows Shimano mountain bike rear derailleurs to be used with Shimano road shifters\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.wolftoothcomponents.com\/collections\/cassette-cogs\/products\/roadlink\"\u003eRoadLink\u003c\/a\u003e - allows for wide range cassettes to be used with Shimano road rear derailleurs\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eTech Specs\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 38t • 52g  \u003cstrong\u003e|\u003c\/strong\u003e  40t • 60g  \u003cstrong\u003e|\u003c\/strong\u003e  42t • 62g  \u003cstrong\u003e|\u003c\/strong\u003e  44t • 79g  \u003cstrong\u003e|\u003c\/strong\u003e  52t • 132g\u003cbr\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 7075-T6 aluminum\u003cbr\u003e\u003cstrong\u003eMade in the USA\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.wolftoothcomponents.com\/pages\/wolf-tooth-patents-and-trademarks\"\u003ePatent and trademark information\u003c\/a\u003e\u003c\/p\u003e","brand":"Wolf Tooth Components","offers":[{"title":"38T \/ Drop-Stop B","offer_id":44724477755426,"sku":"13038-FT","price":84.95,"currency_code":"USD","in_stock":true},{"title":"40T \/ Drop-Stop B","offer_id":44724477788194,"sku":"13040-FT","price":84.95,"currency_code":"USD","in_stock":false},{"title":"42T \/ Drop-Stop B","offer_id":44724477820962,"sku":"13042-FT","price":84.95,"currency_code":"USD","in_stock":false},{"title":"44T \/ Drop-Stop B","offer_id":44724477853730,"sku":"13044-FT","price":89.95,"currency_code":"USD","in_stock":true},{"title":"46T \/ Drop-Stop B","offer_id":44724477886498,"sku":"13046-FT","price":89.95,"currency_code":"USD","in_stock":true},{"title":"48T \/ Drop-Stop B","offer_id":44724477919266,"sku":"13048-FT","price":94.95,"currency_code":"USD","in_stock":true},{"title":"50T \/ Drop-Stop B","offer_id":44724477952034,"sku":"13050-FT","price":94.95,"currency_code":"USD","in_stock":true},{"title":"52T \/ Drop-Stop B","offer_id":44724477984802,"sku":"13052-FT","price":94.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/7940\/8674\/files\/WT-130-BCD-50T-Black-02.jpg?v=1767989793","url":"https:\/\/www.tonkacycleandski.com\/products\/130-bcd-gravel-cx-road-chainrings","provider":"Tonka Cycles and Skis","version":"1.0","type":"link"}