![\"Big\/big](\"https:\/\/tailwind-coaching.com\/wp-content\/uploads\/2012\/05\/chainsize1.gif\" "\\"Big\/big")
<\/a>We're talking big ring\/big cog. \u00a0Let's take it step by step:<\/p>\n- \n
- Remove the old chain and either toss it (or save it to swap in at a later date if you're rotating chains.)<\/li>\n
- Shift the front derailleur cage over the largest chainring.<\/li>\n
- Shift the rear derailleur on the smallest cog.<\/li>\n
- Run the chain through the front derailleur and around the large chainring.<\/li>\n
- Wrap the chain around the largest rear cog, but don't thread it through the derailleur.<\/li>\n
![\"Sizing](\"https:\/\/tailwind-coaching.com\/wp-content\/uploads\/2012\/05\/chainsize2.gif\" "\\"Sizing")
Pull the chain tight, and make a mental note of the closest rivet where the two ends can mate together. Remember that you'll need to mate inner and outer plates (or two inner plates if you're using a quick link.)<\/li>\n- From that closet rivet, add two rivets (which is two links or approximately one inch.) \u00a0Break the chain at that point, remembering to account for how you're rejoining the chain.<\/li>\n
- Thread the chain through the rear derailleur and then join the ends.<\/li>\n<\/ol>\n
<\/p>\n
Looking Good<\/h3>\n
![\"Properly](\"https:\/\/tailwind-coaching.com\/wp-content\/uploads\/2012\/05\/chainsize3.gif\" "\\"Properly")
A properly sized chain, when threaded through the derailleurs and crosschained into the big\/big combo should have some bends in it where it wraps around the rear derailleur jockey wheels, as pictured to the left. \u00a0If the chain is almost straight (and the top jockey wheel is smashed up against the big cog) it's almost certain that the chain is too short. \u00a0So be sure to check your work but crossing up the chain and ensure that you're on target. \u00a0After all, it would suck to trash the drivetrain from something as trivial as a poorly sized chain.<\/p>\n","protected":false},"excerpt":{"rendered":"A properly sized chain is important for a smooth shifting drivetrain. Since the time is here when many people give their bike a good deep cleaning and replace wear items, knowing how to size a chain is of utmost importance.<\/p>\n","protected":false},"author":1,"featured_media":800,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[177,67,170],"yst_prominent_words":[543,1648,1649,1655,1646,1653,1650,1651,1654,1656,1647,1644,1652,1645],"wppr_data":{"cwp_meta_box_check":"No"},"jetpack_featured_media_url":"https:\/\/tailwind-coaching.com\/wp-content\/uploads\/2011\/12\/kmcchain.jpg","_links":{"self":[{"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/posts\/1134"}],"collection":[{"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/comments?post=1134"}],"version-history":[{"count":1,"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/posts\/1134\/revisions"}],"predecessor-version":[{"id":10427,"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/posts\/1134\/revisions\/10427"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/media\/800"}],"wp:attachment":[{"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/media?parent=1134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/categories?post=1134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/tags?post=1134"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/tailwind-coaching.com\/wp-json\/wp\/v2\/yst_prominent_words?post=1134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}