New customers: $20 off with code NEW20OFF | Free shipping on e-bikes, delivered in 5-7 days >>>

Menu

  • E-Bikes
      (function () {
  if (window.dyuMegaDropdownWheelLockV2) return;
  window.dyuMegaDropdownWheelLockV2 = true;

  var panelSelector = '#brxe-bd51ce.brx-dropdown-content, #brxe-c45a2e.brx-dropdown-content, #brxe-c04fc5.brx-dropdown-content';
  var locked = false;
  var lockedY = 0;
  var syncTimer = 0;
  var scrollTimer = 0;

  function isDesktop() {
    return window.matchMedia && window.matchMedia('(min-width: 992px)').matches;
  }

  function isVisible(element) {
    if (!element || !isDesktop()) return false;
    var style = window.getComputedStyle(element);
    if (style.display === 'none' || style.visibility === 'hidden') return false;
    if (Number(style.opacity || 1) <= 0.05) return false;
    var rect = element.getBoundingClientRect();
    return rect.width > 10 && rect.height > 10;
  }

  function visiblePanelFromTarget(target) {
    var panel = target && target.closest ? target.closest(panelSelector) : null;
    return isVisible(panel) ? panel : null;
  }

  function anyPanelOpen() {
    if (!isDesktop()) return false;
    var panels = document.querySelectorAll(panelSelector);
    for (var index = 0; index < panels.length; index += 1) {
      if (isVisible(panels[index])) return true;
    }
    return false;
  }

  function lock() {
    if (locked) return;
    locked = true;
    lockedY = window.scrollY || document.documentElement.scrollTop || 0;
    document.documentElement.classList.add('dyu-mega-dropdown-wheel-locked');
  }

  function unlock() {
    if (!locked) return;
    locked = false;
    document.documentElement.classList.remove('dyu-mega-dropdown-wheel-locked');
  }

  function sync() {
    window.clearTimeout(syncTimer);
    syncTimer = window.setTimeout(function () {
      if (anyPanelOpen()) {
        lock();
      } else {
        unlock();
      }
    }, 60);
  }

  function canScrollPanel(panel, deltaY) {
    if (!panel || panel.scrollHeight <= panel.clientHeight + 2) return false;
    var atTop = panel.scrollTop <= 0 && deltaY < 0;
    var atBottom = panel.scrollTop + panel.clientHeight >= panel.scrollHeight - 2 && deltaY > 0;
    return !atTop && !atBottom;
  }

  document.addEventListener('wheel', function (event) {
    if (!isDesktop()) return;

    var panel = visiblePanelFromTarget(event.target);
    if (!panel && !anyPanelOpen()) return;

    lock();

    if (panel && canScrollPanel(panel, event.deltaY)) {
      event.stopPropagation();
      return;
    }

    event.preventDefault();
    event.stopPropagation();
  }, { capture: true, passive: false });

  document.addEventListener('touchmove', function (event) {
    if (!isDesktop() || !anyPanelOpen()) return;
    var panel = visiblePanelFromTarget(event.target);
    if (!panel) {
      event.preventDefault();
      event.stopPropagation();
    }
  }, { capture: true, passive: false });

  document.addEventListener('mouseover', sync, true);
  document.addEventListener('mouseout', sync, true);
  document.addEventListener('focusin', sync, true);
  document.addEventListener('focusout', sync, true);
  document.addEventListener('keydown', function (event) {
    if (event.key === 'Escape') sync();
  }, true);

  window.addEventListener('scroll', function () {
    if (!locked || !anyPanelOpen()) return;
    window.clearTimeout(scrollTimer);
    scrollTimer = window.setTimeout(function () {
      if (Math.abs((window.scrollY || document.documentElement.scrollTop || 0) - lockedY) > 1) {
        window.scrollTo(0, lockedY);
      }
    }, 0);
  }, { passive: true });

  window.addEventListener('resize', sync, { passive: true });

  var observer = new MutationObserver(sync);
  observer.observe(document.documentElement, {
    subtree: true,
    attributes: true,
    attributeFilter: ['class', 'style', 'aria-expanded']
  });

  sync();
})();

/* DYU SP1 folded-size header code 2026-07-04 */
(function(){
  var labels={"45669":"Folded Size","45670":"Afmetingen gevouwen","45671":"Faltmaß","45672":"Összecsukott méret","45673":"Dimensioni piegata","45674":"Rozmiar po złożeniu","45675":"Tamanho dobrado","45676":"Tamaño plegado","45677":"Hopfälld storlek"};
  var value='700 x 450 x 620 mm';
  function getId(){var c=document.body&&document.body.className||'';for(var k in labels){if(c.indexOf('postid-'+k)>-1)return k;}return null;}
  function run(){var k=getId();if(!k)return;var label=document.getElementById('brxe-47a331');var val=document.getElementById('brxe-76df28');if(label)label.textContent=labels[k];if(val){val.textContent=value;val.style.display='';}}
  if(document.readyState==='loading'){document.addEventListener('DOMContentLoaded',run,{once:true});}else{run();}
  window.addEventListener('load',run);setTimeout(run,300);setTimeout(run,1200);
}());
/* End DYU SP1 folded-size header code */

      Best Sellers E-Bike ›

      Lightweight Ebike ›

      Commuter Ebike ›

      Fat Tire Ebike ›

      Fitness Ebike ›

      Folding Ebike ›

      Ebikes ›

  • E-Wagon
  • Accessories
    • DistributorAboutContact
    DYU Electronic Speaker for E-Bikes, Loud Horn

    DYU Electronic Speaker for E-Bikes, Loud Horn

    Original price was: $46.58.Current price is: $34.94.

    Loud horn with high-fidelity sound, weatherproof and shock-resistant. Plug-and-play, installs in 5 mins for safer rides.

    New Year Sale Specials
    New Year Sale! Ends in

    12-24 Months Warranty

    Ship From Local Warehouse

    30-day Risk-Free Trial

    Categories: Accessories

    Customer Reviews

    1. English

      Liam Parker –

      The DYU Electronic Speaker for E-Bikes feels well made, and both the simple button control and the loud, clear sound have worked well in regular use.

    2. English

      Emily H. –

      The DYU Electronic Speaker for E-Bikes feels well made, and both the loud, clear sound and the simple button control have worked well in regular use.

    Show only reviews in English (UK) ()

    Add a review

    Your email address will not be published. Required fields are marked *

    Popular now

    DYU Electronic Speaker for E-Bikes, Loud Horn

    Original price was: $46.58.Current price is: $34.94.

    Select options