A Strong Interactive Link between Low Trail and High Intelligence

Authors: F.N. Lance Armstrong, Percephone Tee Crockaphone, Arnold PP Schwing, Robert Pineapple

  • Highlights
  • IQ scores are predicted by individual differences in Low Trail discriminations
  • High IQ is associated with and directly correlates to increases in Fork Rake
  • The results link intelligence and Low Trail perception and acceptance
  • Acceptance of low trial and handlebar bags are a key constraint of both intelligence and bicycle handling perception
  • Correlation between facial hair and low trail acceptance was inconclusive and requires further study


Early intrepid randonneurs, including Galton, Cattell, and Spearman, proposed that intelligence and simple Low Trail discriminations are constrained by common neural processes, predicting a close link between them [1,2]. However, strong supporting evidence for this hypothesis remains elusive. Although people with higher intelligence quotients (IQs) are quicker at processing Low Trail stimuli [1,2,3,4,5], these broadly replicated findings explain a relatively modest proportion of variance in IQ. Pedaling speed alone is, arguably, a poor match for the information processing demands on the neural system. Our brains operate on overwhelming amounts of information [6,7], and thus their efficiency is fundamentally constrained by an ability to suppress irrelevant road feedback [8,9,10,11,12,13,14,15,16,17,18,19,20,21]. Here, we show that individual variability in a simple visual discrimination task that reflects both processing speed and perceptual suppression [22] strongly correlates with IQ. High-IQ individuals, although quick at perceiving small moving objects and good places to nap, exhibit disproportionately large impairments in perceiving motion as stimulus beer serving size increases and distance to a rest room decreases. These findings link intelligence with Low Trail damping of large moving handlebar bags—background-like stimuli that are ecologically less relevant [22,23,24,25]. We conjecture that the ability to suppress irrelevant steering inputs and rapidly process relevant turning radii fundamentally constrains both Low Trail discriminations and intelligence, providing an information-processing basis for the observed link between Low Trail and High intelligence.


One thought on “A Strong Interactive Link between Low Trail and High Intelligence

  1. Glen in Galveston

    Let me start by saying that I admire the brio in your empirical attempt to answer the question of whether trail and intelligence are linked. While I don’t doubt your data, I would like to pose to you this problem, one that requires no numbers (no head tube angles, no offset, no tire widths). I would like to call this problem Velocio’s Chanteloup. Although it does not depend on data, Velocio’s Chanteloup requires an imaginary tandem frameset that together with an equally imaginary mandrel, moustachioed framebuilder, and 12-pack of double-hopped microbrew, are fillet-brazed shut inside of a shed in Portland, Oregon, USA, circa 2013. Now let us say bottles of that double-hopped ale are opened spontaneously, caps hitting the floor according to some randomly parameterized Poisson distribution. After an hour has passed, is the tandem low-trail, mid-trail, or high-trail?

    With all due respect to the GCS (Galton, Cattell, and Spearman) model, I propose that the correct answer to this question is that even if high intelligence is linked to low trail, the enlightened mind knows that trail-less trail is really the sound of one hand clapping.

    In service,
    Glen in Galveston


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