Accessories

DYU D3S 14″ Mini Folding Electric Bike
Original price was: $756.02.Current price is: $569.64.
M20 All-Terrain Long-Range Electric Bike
Original price was: $1,399.00.Current price is: $999.00.
DYU C9 Foldable 20″ Long-Range E-Bike
Original price was: $1,299.00.Current price is: $779.00.
DYU FF500 20in Fat Tire E-Bike, 500W, 70KM Range
Original price was: $2,095.66.Current price is: $1,396.72.
DYU C5 27.5in City E-Bike, 65km Range
Original price was: $1,047.25.Current price is: $930.76.
DYU C1 26in City E-Bike, 500W, 65KM Range
Original price was: $1,629.70.Current price is: $930.76.
DYU C2 16in Folding E-Bike, 250W, 40KM Range
Original price was: $1,000.65.Current price is: $651.18.
DYU A1F Pro 16in Folding E-Bike, 250W, Easy Storage
Original price was: $721.07.Current price is: $581.29.
DYU A5 14in Folding E-Bike, 250W, Remote Lock
Original price was: $930.76.Current price is: $604.58.
DYU D3F 14in Mini Folding E-Bike, 250W, 50KM Range
Original price was: $872.51.Current price is: $581.29.

(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();
})();