{"title":"Cassette Cog","description":"\u003cp\u003eRear wheel gears. We stock cassette sprockets and single speed cogs. Compatible with Shimano, Gevenalle, and others.\u003c\/p\u003e","products":[{"product_id":"ec-wi-freewheel","title":"WHITE INDUSTRIES FreeWheel Freewheel Cog 16T-19T White Industries","description":"\u003cp\u003eWhen you think of White Industries, you think of high-performance freewheels, a popular component.\u003cbr\u003eWith a machined body and high-performance bearings, their durability is outstanding.\u003cbr\u003eThe standard model has 36 engagement points, while the trials model has 72.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOnly the 16T size has blue sides.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e[000000000902:ec-wi-freewheel]\u003c\/p\u003e","brand":"grumpy","offers":[{"title":"16T \/ -","offer_id":40584058110136,"sku":"ec-wi-freewheel-1-1","price":17600.0,"currency_code":"JPY","in_stock":false},{"title":"17T \/ -","offer_id":40584058142904,"sku":"ec-wi-freewheel-2-1","price":17600.0,"currency_code":"JPY","in_stock":false},{"title":"18T \/ -","offer_id":40584058175672,"sku":"ec-wi-freewheel-3-1","price":17600.0,"currency_code":"JPY","in_stock":false},{"title":"19T \/ -","offer_id":40584058208440,"sku":"ec-wi-freewheel-4-1","price":17600.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/000000000902.jpg?v=1653732888"},{"product_id":"ec-su000000001528","title":"Surly TRACK COGS 1\/8 Thick (13-16T) Surly","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eSurly's fixed gear cogs are machined from SCM415 chromoly and hardened for wear resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThey have also been redesigned to increase the contact surface with the hub body, thereby increasing the threaded area.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThreaded to ISO standard (1.375\" x 24tpi), they are compatible with most hubs, including Surly's fixed gear hubs.\u003c\/span\u003e \u003cbr\u003e\u003cbr\u003e[000000001528:ec-su000000001528]\u003c\/p\u003e","brand":"モトクロスインターナショナル","offers":[{"title":"13t","offer_id":40584083996856,"sku":"ec-su000000001528-1","price":6578.0,"currency_code":"JPY","in_stock":true},{"title":"14 tons","offer_id":40584084029624,"sku":"ec-su000000001528-2","price":6578.0,"currency_code":"JPY","in_stock":true},{"title":"15 metric tons","offer_id":40584084062392,"sku":"ec-su000000001528-3","price":6578.0,"currency_code":"JPY","in_stock":true},{"title":"16 tons","offer_id":40584084095160,"sku":"ec-su000000001528-4","price":6578.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/000000001528_1.jpg?v=1650220862"},{"product_id":"ec-su000000001531","title":"Surly TRACK COGS 1\/8 Thick Tooth (17-22T) Surly","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSurly's fixed gear cogs are machined from SCM415 chromoly and hardened for wear resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe design has also been revamped to increase the contact area with the hub body, thus increasing the threaded surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThreaded to ISO standards (1.375\" x 24tpi), these cogs fit most hubs, including Surly's fixed gear hubs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e[000000001531:ec-su000000001531]","brand":"モトクロスインターナショナル","offers":[{"title":"17t","offer_id":40584084193464,"sku":"ec-su000000001531-1","price":6578.0,"currency_code":"JPY","in_stock":true},{"title":"18t","offer_id":40584084226232,"sku":"ec-su000000001531-2","price":6578.0,"currency_code":"JPY","in_stock":false},{"title":"19th","offer_id":40584084259000,"sku":"ec-su000000001531-3","price":6578.0,"currency_code":"JPY","in_stock":false},{"title":"20 tons","offer_id":40584084291768,"sku":"ec-su000000001531-4","price":6578.0,"currency_code":"JPY","in_stock":false},{"title":"21 tonnes","offer_id":40584084324536,"sku":"ec-su000000001531-5","price":6578.0,"currency_code":"JPY","in_stock":false},{"title":"22 tons","offer_id":40584084357304,"sku":"ec-su000000001531-6","price":6578.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/0000000015312_4ZMvR7Z.jpg?v=1650220865"},{"product_id":"ec-10002607","title":"Gevenalle HOUP Ti Cassette Cog","description":"These are titanium cassette cogs with a CNC aluminum body in 21-24-27T (for 10s) and 23-25-28T (for 11s combinations).\u003cbr\u003e\nYou can reasonably lighten your 105 or ULTEGRA cassette by replacing the large cog block with this.\u003cbr\u003e\nReplacing the 105 (5700) cassette with this cassette brings the weight within 7g of the DA7900 10s cassette cog. It's the best solution for reasonable weight reduction, and when combined with the separately sold HOUP, it further protects your rear derailleur.\u003cbr\u003e\u003cbr\u003e\nWeight Comparison (for 10-speed)\u003cbr\u003e\n5700 Normal Cassette 11-28 = 250g\u003cbr\u003e\n6700 Normal Cassette 11-28 = 234g\u003cbr\u003e\n5700 with HOUP = 237g\u003cbr\u003e\n6700 with HOUP = 229g\u003cbr\u003e\n5700 with HOUP Ti = 195g\u003cbr\u003e\n6700 with HOUP Ti = 192g\u003cbr\u003e\nDura Ace 7900 10-speed Cassette 188g\u003cbr\u003e\n*The 105 cassette + HOUP Ti combination comes within just 7g of the 7900.\u003cbr\u003e\u003cbr\u003e\nCompatible Cassettes\u003cbr\u003e\nFor 10-speed\u003cbr\u003e\nShimano 5700\u003cbr\u003e\nShimano 6700\u003cbr\u003e\u003cbr\u003e\nFor 11-speed\u003cbr\u003e\nShimano 5800\u003cbr\u003e\nShimano 6800\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\u003cbr\u003e[000000002291:ec-10002607]","brand":"grumpy","offers":[{"title":"For 10-speed","offer_id":40584113553592,"sku":"ec-10002607-1","price":9900.0,"currency_code":"JPY","in_stock":false},{"title":"For 11-speed","offer_id":40584113586360,"sku":"ec-10002607-2","price":9900.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/files\/2023-10-1316.29.54.png?v=1697182238"},{"product_id":"ec-201902091726","title":"EURO ASIA Gold Medal Pro Track Cog Fixed Gear","description":"These are top-of-the-line cogs for fixed-gear bikes.\u003cbr\u003e\n\u003cp\u003eAs the name \"GOLD MEDAL\" suggests, they gleam golden and are incredibly beautiful.\u003cbr\u003e They feature a titanium coating on the surface, offering exceptional chain release and precision.\u003cbr\u003e Serious riders almost invariably use these Made in U.S.A. cogs.\u003cbr\u003e They are highly durable, and while the initial investment may seem high, they are well worth it when considering their longevity.\u003cbr\u003e Experience the quality that American fixed-gear riders swear by!\u003cbr\u003e Available tooth counts are 13, 14, 15, 16, 17, and 18t.\u003cbr\u003e The 13t is yellow, 14t is blue, 15t is red, 16t is green, 17t is black, and 18t is white on the side.\u003cbr\u003e Chain standard is 1\/2 × 1\/8.\u003c\/p\u003e\n\u003cbr\u003e[[000000002979--1001:ec-201902091726]]","brand":"grumpy","offers":[{"title":"13T","offer_id":40584144978104,"sku":"ec-201902091726-1","price":31120.0,"currency_code":"JPY","in_stock":false},{"title":"14T","offer_id":40584145010872,"sku":"ec-201902091726-2","price":31120.0,"currency_code":"JPY","in_stock":false},{"title":"15 tons","offer_id":40584145043640,"sku":"ec-201902091726-3","price":31120.0,"currency_code":"JPY","in_stock":false},{"title":"16T","offer_id":40584145076408,"sku":"ec-201902091726-4","price":31120.0,"currency_code":"JPY","in_stock":false},{"title":"17T","offer_id":40584145109176,"sku":"ec-201902091726-5","price":31120.0,"currency_code":"JPY","in_stock":false},{"title":"18T","offer_id":40584145141944,"sku":"ec-201902091726-6","price":31120.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/1_000000002979_b4d150b9-e269-4b85-adcf-293270aaecc9.jpg?v=1632616544"},{"product_id":"ec-201902101703","title":"Phil Wood Track Cog (1\/8) Track Cog Phil Wood Cog Fixed Gear Bike Parts","description":"This is a cog for Phil Wood track hubs.\u003cbr\u003e Its precision is undeniable, so it can be used with hubs from other manufacturers, not just Phil Wood.\u003cbr\u003e Please use this cog with Phil Wood hubs.\u003cbr\u003e Using a different cog will void the warranty.\u003cbr\u003e Chain standard: 1\/2 × 1\/8\u003cbr\u003e \u003cbr\u003e \u003cbr\u003e \u003cbr\u003e\u003cbr\u003e[000000002985:ec-201902101703]","brand":"grumpy","offers":[{"title":"15 tons","offer_id":40584145535160,"sku":"ec-201902101703-4","price":14520.0,"currency_code":"JPY","in_stock":false},{"title":"16 tons","offer_id":40584145567928,"sku":"ec-201902101703-5","price":14520.0,"currency_code":"JPY","in_stock":false},{"title":"17 tons","offer_id":40584145600696,"sku":"ec-201902101703-6","price":14520.0,"currency_code":"JPY","in_stock":false},{"title":"18th","offer_id":40584145633464,"sku":"ec-201902101703-7","price":14520.0,"currency_code":"JPY","in_stock":false},{"title":"19t","offer_id":40584145666232,"sku":"ec-201902101703-8","price":14520.0,"currency_code":"JPY","in_stock":false},{"title":"20 tons","offer_id":40584145699000,"sku":"ec-201902101703-9","price":14520.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/DSC02260.jpg?v=1675062595"},{"product_id":"ec-ch000000003012","title":"ChrisKing Stainless Steel Cog","description":"Chris King Stainless Steel Cog for Single Speed\u003cbr\u003eCompatible with Chris King single speed hubs and SHIMANO HG freehubs\u003cbr\u003eMaterial: Stainless Steel\u003cbr\u003eSizes: 11T, 12T, 13T, 14T, 15T, 16T, 17T, 18T, 19T, 20T\u003cbr\u003e\u003cbr\u003e[000000003012:ec-ch000000003012]","brand":"grumpy","offers":[{"title":"Stainless Steel \/ 12T","offer_id":40584148648120,"sku":"ec-ch000000003012-1-1","price":9020.0,"currency_code":"JPY","in_stock":false},{"title":"Stainless Steel \/ 13T","offer_id":40584148680888,"sku":"ec-ch000000003012-1-2","price":9020.0,"currency_code":"JPY","in_stock":false},{"title":"Stainless Steel \/ 14T","offer_id":40584148713656,"sku":"ec-ch000000003012-1-3","price":9020.0,"currency_code":"JPY","in_stock":false},{"title":"Stainless Steel \/ 15 tons","offer_id":40584148746424,"sku":"ec-ch000000003012-1-4","price":9020.0,"currency_code":"JPY","in_stock":false},{"title":"Stainless Steel \/ 16T","offer_id":40584148779192,"sku":"ec-ch000000003012-1-5","price":9020.0,"currency_code":"JPY","in_stock":false},{"title":"Stainless Steel \/ 17T","offer_id":40584148811960,"sku":"ec-ch000000003012-1-6","price":9020.0,"currency_code":"JPY","in_stock":false},{"title":"Stainless Steel \/ 18T","offer_id":40584148844728,"sku":"ec-ch000000003012-1-7","price":9020.0,"currency_code":"JPY","in_stock":false},{"title":"Stainless Steel \/ 19T","offer_id":40584148877496,"sku":"ec-ch000000003012-1-8","price":9020.0,"currency_code":"JPY","in_stock":false},{"title":"Stainless Steel \/ 20 tons","offer_id":40584148910264,"sku":"ec-ch000000003012-1-9","price":9020.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/10_000000003012.jpg?v=1650222577"},{"product_id":"ec-201902201752","title":"EURO ASIA Deluxe Steel Track Cog (13T-16T) Fixed Gear","description":"\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\n\n\n\n\u003cp\u003eEURO ASIA steel cog for track bikes, famous for its GOLD MEDAL COG.\u003cbr\u003e\nThis is an accessible and high-quality cog.\u003cbr\u003e\nIf you can't quite get your hands on a Gold Medal Cog but want to try Euro Asia, then this cog is for you!\u003cbr\u003e\nSPEC\u003cbr\u003e\nStandard: 1\/2\"x1\/8\" (thick teeth)\u003cbr\u003e\nCOLOR\u003cbr\u003e\nBlack\u003c\/p\u003e\n\n\n\n\n\n\n\n\u003cbr\u003e[[000000003024--1001:ec-201902201752]]","brand":"grumpy","offers":[{"title":"13T","offer_id":40584149598392,"sku":"ec-201902201752-1","price":9350.0,"currency_code":"JPY","in_stock":false},{"title":"14T","offer_id":40584149631160,"sku":"ec-201902201752-2","price":9350.0,"currency_code":"JPY","in_stock":false},{"title":"15t","offer_id":40584149663928,"sku":"ec-201902201752-3","price":9350.0,"currency_code":"JPY","in_stock":false},{"title":"16T","offer_id":40584149696696,"sku":"ec-201902201752-4","price":9350.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/0000000030242_H5xdOzQ_ed5decb9-7d61-4f04-9226-dfa78167289c.jpg?v=1653801417"},{"product_id":"ec-201902201807","title":"EURO ASIA Delux Steel Track Cog (17T-22T) Fixed Gear","description":"EURO ASIA's steel cog for track bikes, famous for the GOLD MEDAL COG.\u003cbr\u003e\n\u003cp\u003eThis is an accessible and high-quality cog for anyone.\u003cbr\u003e Recommended for those who can't quite afford a Gold Medal Cog but want to try Euro Asia!\u003cbr\u003e SPEC\u003cbr\u003e Standard: 1\/2\"x1\/8\" (thick tooth)\u003cbr\u003e COLOR\u003cbr\u003e Black\u003c\/p\u003e\n\u003cbr\u003e[[000000003025--1001:ec-201902201807]]","brand":"grumpy","offers":[{"title":"17T","offer_id":40584151204024,"sku":"ec-201902201807-1","price":13420.0,"currency_code":"JPY","in_stock":false},{"title":"18t","offer_id":40584151236792,"sku":"ec-201902201807-2","price":13420.0,"currency_code":"JPY","in_stock":false},{"title":"19T","offer_id":40584151269560,"sku":"ec-201902201807-3","price":13420.0,"currency_code":"JPY","in_stock":false},{"title":"20T","offer_id":40584151302328,"sku":"ec-201902201807-4","price":13420.0,"currency_code":"JPY","in_stock":true},{"title":"21T","offer_id":40584151335096,"sku":"ec-201902201807-5","price":13420.0,"currency_code":"JPY","in_stock":true},{"title":"22 metric tons","offer_id":40584151367864,"sku":"ec-201902201807-6","price":13420.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/0000000030252_vXyy3WJ_a404fcbd-0017-40bf-ae3a-5e45e4df75f5.jpg?v=1653801359"},{"product_id":"ec-201903031225","title":"ACS PAWS 4.1 Freewheel (16t-18t) 1\/8-3\/32 Compatible","description":"\n\u003cp\u003eThe successor to ACS's classic \"CROSS FIRE\" freewheel.\u003cbr\u003e\nCan be attached and removed with a common 4-prong tool.\u003cbr\u003e\nCompatible with 1\/8\" and 3\/32\" chains.\u003cbr\u003e\n30 notches.\u003c\/p\u003e\n\n\n\u003cbr\u003e\u003cbr\u003e[000000003052:ec-201903031225]","brand":"grumpy","offers":[{"title":"16T","offer_id":40584152907960,"sku":"ec-201903031225-1","price":2860.0,"currency_code":"JPY","in_stock":false},{"title":"17T","offer_id":40584152940728,"sku":"ec-201903031225-2","price":2860.0,"currency_code":"JPY","in_stock":false},{"title":"18T","offer_id":40584152973496,"sku":"ec-201903031225-3","price":2860.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/0000000030522_BwpmWQ0.jpg?v=1650222662"},{"product_id":"ec-su000000004659","title":"Surly Thin Tooth CASSETTE COGS 3\/32 (13-16T)","description":"Machined from SCM415 chromoly steel and hardened for wear resistance.\nThe teeth are 3\/32\" thick.\u003cbr\u003e\u003cbr\u003e[000000004659:ec-su000000004659]","brand":"モトクロスインターナショナル","offers":[{"title":"13th","offer_id":40584590557368,"sku":"ec-su000000004659-1","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"14t","offer_id":40584590590136,"sku":"ec-su000000004659-2","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"15 metric tons","offer_id":40584590622904,"sku":"ec-su000000004659-3","price":7700.0,"currency_code":"JPY","in_stock":true},{"title":"16 tons","offer_id":40584590655672,"sku":"ec-su000000004659-4","price":7700.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/0000000046592_2ob3gui.jpg?v=1650228438"},{"product_id":"ec-su000000004660","title":"Surly CASSETTE COGS 3\/32 (17-22T) Thin","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSurly cassette cogs are machined from SCM415 chromoly steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThey are then heat-treated and chrome-plated for a clean appearance and wear resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eBy using Surly's stainless steel chainrings with these cassette cogs, you can achieve a longer-lasting drivetrain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThey are designed to fit Shimano freehubs because their spline pattern is the most common and widely shared.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eFor you, this cog will be the most suitable way to convert your current wheel to single-speed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe tooth shape and height are optimized for single-speed drivetrains.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe contact area with the freehub is wider than other single-speed cogs, preventing it from digging into or wobbling on the hub body.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThis is especially important if your freehub body is made of aluminum.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe cog width is also designed to be compatible with 9-speed drivetrains, so you can combine several cogs to create a geared setup (be sure to align the cog faces on the hub body).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eAbove all, since it is designed as a single-speed cog, its shifting performance will be slightly inferior to conventional ones.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eHowever, we have used several in combination and achieved good results.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eSingle-speed like, and sometimes geared... the answer is here.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eCompatible with 6-speed to 9-speed chains, available in 1T increments from 13T to 22T.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e[000000004660:ec-su000000004660]\u003c\/p\u003e","brand":"モトクロスインターナショナル","offers":[{"title":"17 tons","offer_id":40584590885048,"sku":"ec-su000000004660-1","price":7700.0,"currency_code":"JPY","in_stock":true},{"title":"Eighteen","offer_id":40584590917816,"sku":"ec-su000000004660-2","price":7700.0,"currency_code":"JPY","in_stock":true},{"title":"19th","offer_id":40584590950584,"sku":"ec-su000000004660-3","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"20 tons","offer_id":40584590983352,"sku":"ec-su000000004660-4","price":7700.0,"currency_code":"JPY","in_stock":true},{"title":"21 tons","offer_id":40584591016120,"sku":"ec-su000000004660-5","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"22t","offer_id":40584591048888,"sku":"ec-su000000004660-6","price":7700.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/0000000046602_ck890iw.jpg?v=1650228442"},{"product_id":"ec-201903031303","title":"ACS PAWS 4.1 Freewheel (20t-22t) 1\/8-3\/32 Compatible ACS","description":"\u003cbr\u003e\n\n\u003cp\u003eThe successor to ACS's classic freewheel, the \"CROSS FIRE.\"\u003cbr\u003e Can be installed and removed with a common 4-prong freewheel tool.\u003cbr\u003e Compatible with 1\/8\" and 3\/32\" chains.\u003cbr\u003e 30 notches.\u003c\/p\u003e\n\u003cbr\u003e\u003cbr\u003e[000000003053:ec-201903031303]","brand":"grumpy","offers":[{"title":"20 tons","offer_id":40590241300664,"sku":"ec-201903031303-1","price":3080.0,"currency_code":"JPY","in_stock":false},{"title":"22T","offer_id":40590241333432,"sku":"ec-201903031303-2","price":3080.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/0000000030532_7I0tz38_eac3a8f9-968c-40ee-90ec-29ed10780842.jpg?v=1650222667"},{"product_id":"ec-310000017","title":"Surly SINGLE SPEED SPACER KIT","description":"\u003cp\u003eThis is a spacer kit for attaching a single-speed cassette cog to a Shimano cassette freehub body.\u003c\/p\u003e\n\u003cp\u003eWith different spacer combinations, you can achieve a perfect chainline regardless of whether you're using a road, track, or mountain bike crankset.\u003c\/p\u003e\n\u003cp\u003eIf you're looking to easily enjoy the fun of single-speed riding, we recommend trying this first. \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eec-310000017\u003c\/span\u003e\u003c\/p\u003e","brand":"モトクロスインターナショナル","offers":[{"title":"Default Title","offer_id":40590506852536,"sku":"ec-310000017","price":8415.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/000000001533_1.jpg?v=1632623027"},{"product_id":"ec-202207261604","title":"SHIMANO SLX 11-Speed MTB Cassette Sprocket CS-M7000-11","description":"\u003cp\u003eSHIMANO \u003c\/p\u003e\n\u003cp\u003eCS-M7000-11\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSLX M7000 Series 11-speed Cassette Sprocket\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eGearing: 11-42T (\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e11-13-15-17-19-21-24-28-32-37-42\u003c\/span\u003e)\u003c\/p\u003e\n\u003cp\u003eCompatible Chain: LINKGLIDE\u003c\/p\u003e\n\u003cp\u003eCompatible Freehub: HG (can also be used with 10-speed freehubs)\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"rabel_\"\u003e(\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"rabel_\"\u003eShimano Part No\u003c\/span\u003e:\u003cspan class=\"value_\"\u003eICSM7000142\u003c\/span\u003e\u003c\/p\u003e","brand":"grumpy","offers":[{"title":"Default Title","offer_id":41769209233592,"sku":"ec-202207261604","price":8766.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/products\/CS-M7000_500.jpg?v=1658818965"},{"product_id":"ec-2306031148","title":"PROBLEM SOLVERS SS COG FOR PS CARRIER\/6-BOLT COG","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003eReplacement cog for the ZINGER SS CONVERSION KIT series.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eIt can also be used as a fixed gear by using a disc rotor mount.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSPEC\u003cbr data-mce-fragment=\"1\"\u003eDefined Color: Silver\u003cbr data-mce-fragment=\"1\"\u003eMaterial: Steel\u003cbr data-mce-fragment=\"1\"\u003eDrivetrain Speeds: Single Speed 3\/32″\u003cbr data-mce-fragment=\"1\"\u003eFits the Problem Solvers SS Cog Carrier\u003cbr data-mce-fragment=\"1\"\u003eAlso 6-bolt rotor mount compatible for fixed gear use (see instructions for applicable warnings)\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWARNING: When installing the cog to the rotor mount, always use disc brake rotor bolts with blue Loctite. (Disc brake rotor bolts are not included.)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWARNING: Fixed gears significantly increase the risk of chain breakage, derailment, or drivetrain failure.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe use of front and\/or rear hand brake systems is highly recommended.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWARNING: Riding a fixed gear puts great force and stress on the bike.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eEnsure the rotor bolts are tight before riding.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOver time, they may loosen.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Grumpy Bike Shop","offers":[{"title":"Silver \/ 16 tons","offer_id":45434542293294,"sku":"ec-2306031148-1-1","price":1980.0,"currency_code":"JPY","in_stock":false},{"title":"Silver \/ 17T","offer_id":45434542326062,"sku":"ec-2306031148-1-2","price":1980.0,"currency_code":"JPY","in_stock":false},{"title":"Silver \/ 18T","offer_id":45434542358830,"sku":"ec-2306031148-1-3","price":1980.0,"currency_code":"JPY","in_stock":false},{"title":"Silver \/ 19T","offer_id":45434542391598,"sku":"ec-2306031148-1-4","price":1980.0,"currency_code":"JPY","in_stock":false},{"title":"Silver \/ 20 tons","offer_id":45434542424366,"sku":"ec-2306031148-1-5","price":1980.0,"currency_code":"JPY","in_stock":false},{"title":"Silver \/ 21T","offer_id":45434542457134,"sku":"ec-2306031148-1-6","price":1980.0,"currency_code":"JPY","in_stock":false},{"title":"Silver \/ 22 tons","offer_id":45434542489902,"sku":"ec-2306031148-1-7","price":1980.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/files\/FW9901_1000x1000_8440604e-a441-459d-bfbb-47d90441efbe.jpg?v=1685761193"},{"product_id":"ec-2309301839","title":"WHITE INDUSTRIES Dedicated Fixed Gear 3\/32\" White Industries","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFixed Cog designed exclusively for White Industries track hubs and eccentric hubs\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e　Unique standard assembled to the rear hub by spline\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e　Compatible chain: 3\/32\"\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e　Material: Nickel chrome molybdenum steel\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eec-2309301839\u003c\/span\u003e\u003c\/p\u003e","brand":"Grumpy Bike Shop","offers":[{"title":"13T \/ 3\/32 inch","offer_id":47169323041070,"sku":"ec-2309301839-1-1","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"14T \/ 3\/32 inch","offer_id":47169323106606,"sku":"ec-2309301839-2-1","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"15t \/ 3\/32 inch","offer_id":47169323139374,"sku":"ec-2309301839-3-1","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"16 tons \/ 3\/32 inch","offer_id":47169323172142,"sku":"ec-2309301839-4-1","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"17 tonnes \/ 3\/32 inch","offer_id":47169323204910,"sku":"ec-2309301839-5-1","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"18T \/ 3\/32 inch","offer_id":47169323237678,"sku":"ec-2309301839-6-1","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"19T \/ 3\/32 inch","offer_id":47169323270446,"sku":"ec-2309301839-7-1","price":7700.0,"currency_code":"JPY","in_stock":false},{"title":"20 tons \/ 3\/32 inch","offer_id":47169323303214,"sku":"ec-2309301839-8-1","price":7700.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/3919\/5064\/files\/DSC06689.jpg?v=1696067354"}],"url":"https:\/\/www.grumpy.jp\/en\/collections\/%e3%82%ab%e3%82%bb%e3%83%83%e3%83%88-%e3%82%b3%e3%82%b0.oembed","provider":"Grumpy Bike Shop","version":"1.0","type":"link"}