{"id":2483,"date":"2023-03-16T14:51:25","date_gmt":"2023-03-16T14:51:25","guid":{"rendered":"https:\/\/mywindsock.com\/page\/?p=2483"},"modified":"2023-03-25T21:53:17","modified_gmt":"2023-03-25T21:53:17","slug":"preparing-for-my-time-trial","status":"publish","type":"post","link":"https:\/\/mywindsock.com\/page\/discussion\/preparing-for-my-time-trial\/","title":{"rendered":"Preparing for my time trial"},"content":{"rendered":"\n

Hello readers of the myWindsock blog, lately you\u2019ll have noticed we\u2019ve been a little quiet here. This is because we have been working on partner content with CTT and NoPinz but we are back today and I (Tom) have signed up for a TT this coming weekend! I thought it might be a good opportunity to do a mini series on how I will use myWindsock<\/a> to get ready for this TT, predict my performance and plan my ride. <\/p>\n\n\n\n

The race is a road bike time trial – this means I\u2019ll not be allowed a TT specific bike or helmet – as well as restrictions on the kind of wheels I can use. It\u2019s a 15 mile time trial on the H15\/10<\/a> near Maidenhead. <\/p>\n\n\n\n

Luckily, I\u2019ve done a few road bike time trials so I have plenty of previous data to help me prepare.<\/p>\n\n\n\n

Predicting the race duration<\/h2>\n\n\n\n

The first step is to figure out roughly how long the race is going to take me. For this, I\u2019ll need a cda value to plug into myWindsock. Using a time trial I did in August last year on my road bike I can get a value for my cda which will be relatively accurate. The stats from the race are below\u2026<\/p>\n\n\n\n

<\/p>\n\n\n\n

I didn\u2019t have a great day averaging a lower power than I wanted, but the race has come in handy as I can use it to hopefully have a better day in future! A good example of why getting out to race is rarely a bad shout! From this race we can use my live cda plot to predict performance at another TT. <\/p>\n\n\n\n

<\/p>\n\n\n\n

This plot shows us how cda develops with time and generally there\u2019s a couple of key takeaways from it\u2026 <\/p>\n\n\n\n

  1. My cda on descents doesn\u2019t vary a huge amount, but does get slightly lower as I go down hill. <\/li>
  2. I sit up way too much on faster climbs – this is something to avoid in my coming race. <\/li>
  3. My flat cda is around .253, descent cda around .247 and climb cda around .270.<\/li><\/ol>\n\n\n\n

    The second step is to figure out how much power I can do at my race. The previous race we used to calculate my cda wasn\u2019t representative of my abilities at the moment but recently I\u2019ve done a critical power test<\/a>. The outcome of this test put my critical power at 360W bang on – this is the power I\u2019ll aim to average during the course of my TT at first and make micro-adjustments based on predicted race duration.<\/p>\n\n\n\n

    Plugging these numbers gives me a time of 34:39, or a speed of 43.2km\/h\u2026 Stay tuned for tomorrow\u2019s blog on my power plan, with a weather impact of 4.5% predicted, he who rides the smartest in the wind will prevail! <\/p>\n\n\n\n

    <\/p>\n","protected":false},"excerpt":{"rendered":"

    Hello readers of the myWindsock blog, lately you\u2019ll have noticed we\u2019ve been a little quiet here. This is because we have been working on partner content with CTT and NoPinz but we are back today and I (Tom) have signed up for a TT this coming weekend! I thought it might be a good opportunity … Continue reading “Preparing for my time trial”<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":2353,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/posts\/2483"}],"collection":[{"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/comments?post=2483"}],"version-history":[{"count":2,"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/posts\/2483\/revisions"}],"predecessor-version":[{"id":2485,"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/posts\/2483\/revisions\/2485"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/media\/2353"}],"wp:attachment":[{"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/media?parent=2483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/categories?post=2483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mywindsock.com\/page\/wp-json\/wp\/v2\/tags?post=2483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}