{"product_id":"crank-silver-double-42-28-with-guard","title":"Crank - Silver1 - Double 42x28 (with guard)","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eOur own design, and the crank we put on 80 percent of the Rivendells that go out of here as complete bikes. The SILVER1 crank is smart and exceptionally nice looking, and has the design features we sought but couldn't quite find in any other. And it passes the most rigorous testing. Good for up to 10 speed drivetrains.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eCrank lengths: 170mm, 173mm, 178mm.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eBEST MATERIALS. There are two common aluminum alloys used in cranks. The strongest and best is 7075 T6 aluminum. That's what the SILVER is made of.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eBEST MANUFACTURING METHOD. The SILVER1 crank is cold-forged. It's more expensive, but imparts a grain to the metal in a way that casting and machining doesn't. But nobody really casts cranks anymore (they used to). And some really fine cranks are machined. But they're machined because forging costs too much for small operations.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIt’s compatible with JIS taper bottom brackets, which are most of them, and the chainline is about 47 with a 110mm Shimano BB, and 50mm with a 113. The Q-Factor with a 107mm BB is 154mm. Crank bolts included.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003e110mm \/ 74mm BCD\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eCheck out our\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.rivbike.mom\/pages\/gear-inch-calculator\" data-mce-fragment=\"1\" target=\"_blank\" data-mce-href=\"https:\/\/www.rivbike.mom\/pages\/gear-inch-calculator\"\u003egear inch calculator\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/a\u003eif you want to fine tune your gearing.\u003c\/p\u003e\n\u003cp\u003e42\/28\u003c\/p\u003e\n\u003cp\u003e42tx28t\u003c\/p\u003e\n\u003cp\u003e42t x 28t\u003c\/p\u003e","brand":"khx","offers":[{"title":"165","offer_id":52860254060655,"sku":"cr-!42165","price":280.0,"currency_code":"USD","in_stock":false},{"title":"170","offer_id":40773657133167,"sku":"cr-!42170","price":280.0,"currency_code":"USD","in_stock":false},{"title":"173","offer_id":40773657165935,"sku":"cr-!42173","price":280.0,"currency_code":"USD","in_stock":false},{"title":"178","offer_id":40773657198703,"sku":"cr-!42178","price":280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1403\/7343\/files\/crank-silver1-42x28-double-1_f17cbb31-4752-400a-9f5c-35405c38cda5.jpg?v=1732230922","url":"https:\/\/www.rivbike.mom\/products\/crank-silver-double-42-28-with-guard","provider":"Rivendell Bicycle Works","version":"1.0","type":"link"}