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      (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() {
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  function isVisible(element) {
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    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) {
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      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);
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    }, 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 */

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  • E-Wagon
  • Accessories
    • DistributorAboutContact
    DYU Cut Off Power Brake Lever for D3F, Safe Braking

    DYU Cut Off Power Brake Lever for D3F, Safe Braking

    $33.78

    E-bike brake lever: stops motor instantly when braking 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
    • Quality material: the brake housing set is made of alloy and plastic, strong and durable enough for long time use, with resistance to cold, heat, and oxidation, not easy to deform, ensuring the brake sensitivity, suitable for most kinds of weather conditions of riding
    • Easy to install: the bike brake lever set is simple to mount on the bikes, and you will find it easy to quickly replace the old bike brake, making the riding process more smooth and comfortable, improving your safety with a good reaction speed
    • Practical functions: the bicycle brake rod is durable and has a little burden on your bicycle, ensuring a smooth ride and the brake set is simple and portable, great for carry-on items; Suitable for DYU D3F. Brake arm tension is adjustable, the frame/forks are in the correct position, easy to adjust the spring in the internal brake bow tension.

    Specifications

    For Model

    A1F, A5, D3F/D2F

    Customer Reviews

    1. English

      Oliver B. –

      I am pleased with the DYU Cut Off Power Brake Lever for D3F. Both the responsive lever action and the correct fit work as expected.

    2. English

      Sophie Turner –

      The DYU Cut Off Power Brake Lever for D3F feels well made, and both the responsive lever action and the correct fit have worked well in regular use.

    Show only reviews in English (UK) (0)

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    DYU Cut Off Power Brake Lever for D3F, Safe Braking

    $33.78

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