{"id":1909,"date":"2013-04-16T00:24:40","date_gmt":"2013-04-16T08:24:40","guid":{"rendered":"http:\/\/jeffwerner.ca\/?p=1909"},"modified":"2014-10-07T20:46:01","modified_gmt":"2014-10-08T04:46:01","slug":"ride-your-stock-bike","status":"publish","type":"post","link":"https:\/\/jeffwerner.ca\/testa\/ride-your-stock-bike\/","title":{"rendered":"Ride Your Stock Bike"},"content":{"rendered":"<p>With every new bike I want to try a new riding position, not just replicate my old one. I always want to reduce fatigue, get more aero, generate more power. If you just got a new bike, ride it\u2014or better yet race it\u2014straight outta the box. It&#8217;s a way to quickly test a number of variables in the hopes of having an &#8216;a-ha!&#8217;\u2014or at least a &#8216;hmmm&#8217;\u2014moment with one of them.<\/p>\n<p>A new bike is your chance to be a new rider.<\/p>\n<p>After two races and two big rides on my new team bike I&#8217;ve already\u00a0moulded\u00a0much of myself to the new cockpit. So far it feels great. But I&#8217;m curious as to what, exactly, has changed that I haven&#8217;t noticed, or that I attribute to something unrelated. Is the frame really 2cm smaller or does it just feel that way because of the shorter stem? Do I feel faster because of the new paint job or because my back is flatter?<\/p>\n<p>You can figure a lot of this stuff out by simply looking up the frame measurements online, or at yourself in a mirror. But another way I&#8217;m learning about my position is by a visual hardware comparison with last year&#8217;s bike using photography and Photoshop. I want to see what, exactly, has changed in my set-up.<\/p>\n<figure id=\"attachment_1925\" aria-describedby=\"caption-attachment-1925\" style=\"width: 640px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/jeffwerner.ca\/wp-content\/uploads\/2013\/04\/2013-bikes-venge-r11.gif\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/jeffwerner.ca\/wp-content\/uploads\/2013\/04\/2013-bikes-venge-r1-640.gif\" alt=\"Animation showing this year&#039;s Venge overlayed on last year&#039;s Gennix R1. Major contact and measurable points in blue are aligned on the Venge and remain fixed when the R1 appears, for better comparison. Click for larger version.\" width=\"640\" height=\"480\" class=\"size-full wp-image-1925\" \/><\/a><figcaption id=\"caption-attachment-1925\" class=\"wp-caption-text\">Animation showing this year&#8217;s Venge overlayed on last year&#8217;s Gennix R1. Major contact and measurable points in blue are aligned on the Venge and remain fixed when the R1 appears, for better comparison. Click for larger version.<\/figcaption><\/figure>\n<p>Notice in the images above where some of the blue dots for the Venge line up on the R1; I&#8217;m surprised how different some of them are and how some are pretty bang on\u2014in particular look at:<\/p>\n<ul>\n<li>saddle position<\/li>\n<li>wheelbase<\/li>\n<li>BB centre<\/li>\n<li>headtube stack<\/li>\n<li>bar centre vs. bar drops<\/li>\n<li>brake lever throw<\/li>\n<\/ul>\n<p>It&#8217;s also kind of trippy to watch the wheels grow big and black, then shrink, then grow again, the rear one all taking a bite out of the Venge&#8217;s seat tube&#8230;<\/p>\n<p>Anyways, at the least it&#8217;s visually interesting to overlay photos of the two bikes and see where they differ aesthetically, and in basic frame sculpting. The more I turn the layers on and off, though, the more I&#8217;m starting to learn about the subtle differences. At the same time I&#8217;m\u00a0cross-referencing and reinforcing the visuals by checking the manufacturer&#8217;s specs and my own tape measurements.\u00a0The hope is I&#8217;ll start thinking about bike design and my position on them in new ways.<\/p>\n<p><iframe width='640' height='300' frameborder='0' src='https:\/\/docs.google.com\/spreadsheet\/pub?key=0An9CI8YVtwf4dFMzUEUwR0M3MEFXY2hvNXRwOEwyQ3c&#038;single=true&#038;gid=1&#038;output=html&#038;widget=true'><\/iframe><\/p>\n<p>This spreadsheet compiles a few of my own measurements between the cockpits of the two bikes as well as their respective manufacturer frame specs (retrieved April 14, 2013). Some things I just can&#8217;t compare by number, though.<\/p>\n<p>For example, it&#8217;s not that useful for me to keep a fixed number for my saddle angle and height. Where do you measure saddle height between the Specialized Toupe (last year&#8217;s saddle) and Romin (my new saddle)? The latter has such a pronounced curve: do you measure to the &#8216;saddle&#8217; part of the saddle, or the nose, or an average between the two? Will I be spending most of my time in breakaways this year, trying to get as low as possible and still maintain power, i.e. riding on the tip, so do I measure from there?<\/p>\n<p>And what about this year&#8217;s cranks? They&#8217;re 170mm compared to the usual 172.5. It&#8217;s too much of a hassle to swap them out, and maybe at 5&#8217;9&#8243; I should be riding 170s anways. Do I just add 2.5mm to my usual saddle height? But then how does that affect my leg on the upstroke as it nears my chest?<\/p>\n<p>In the end I go by feel first and can generally detect a two-or-more millimetre difference in my saddle height. But then&#8230;maybe my saddle&#8217;s always been too low? Maybe I should spin a bit more with a bit less bend in my knee? And the team shorts have a thinner chamois\u00a0in some areas this year.\u00a0Do I even like the Romin?<\/p>\n<p>Arriving at the best position across all these factors is in some ways a fixed, and completed, goal: find what works for you and stick with it. For my type of racing there&#8217;s currently an ever evolving goal: find a faster one. Some of the standard position tips\u2014get your back flat, head low, arms bent\u2014can sometimes distract me from\u00a0a particular measurement I didn&#8217;t realize could even\u00a0<em>be<\/em>\u00a0better, until I try it.<\/p>\n<p>I&#8217;ll know more in the coming weeks and races.<\/p>\n<hr \/>\n<p>Some notes about the overlay images:<\/p>\n<ul>\n<li>Comparing a 2013 Specialized Venge Pro Force 52cm with a 2012 Garneau Gennix R1 size medium<\/li>\n<li>Both bikes are fairly &#8220;stock&#8221; though the saddle on the R1 was changed last year, and I recently swapped out the 90mm stem for a 110 on the Venge<\/li>\n<li>I tried to keep the camera in a fixed spot in my dining room and lined up the bike&#8217;s front hubs \/ valve to a marker on the floor<\/li>\n<li>In Photoshop I then aligned the images more accurately, using the front skewer as the main alignment points (you can see the slight shift in the carpet between the two images)<\/li>\n<li>There&#8217;s like, a whole bunch of variables in camera lens distortion, viewing angle, etc. you could call this out on<\/li>\n<li>The Venge has 25mm tires on it, while the R1 has 23mm<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>With every new bike I want to try a new riding position, not just replicate my old one. I always want to reduce fatigue, get more aero, generate more power. If you just got a new bike, ride it\u2014or better yet race it\u2014straight outta the box. It&#8217;s a way to quickly test a number of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[52],"_links":{"self":[{"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/posts\/1909"}],"collection":[{"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/comments?post=1909"}],"version-history":[{"count":16,"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/posts\/1909\/revisions"}],"predecessor-version":[{"id":1930,"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/posts\/1909\/revisions\/1930"}],"wp:attachment":[{"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/media?parent=1909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/categories?post=1909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jeffwerner.ca\/testa\/wp-json\/wp\/v2\/tags?post=1909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}