Header Image
document.documentElement.classList.remove('stoq-buy-now-pending'); }, 6000); } } catch (e) { /* fail open */ } window._RestockRocketConfig.scriptUrlProduct = 'https://cdn.shopify.com/extensions/019faf5b-94c9-7a24-9306-bf1118ca3099/restockrocket-1-554/assets/restockrocket-product.js' window._RestockRocketConfig.scriptUrlCollection = 'https://cdn.shopify.com/extensions/019faf5b-94c9-7a24-9306-bf1118ca3099/restockrocket-1-554/assets/restockrocket-collection.js' window._RestockRocketConfig.scriptUrlProductBis = 'https://cdn.shopify.com/extensions/019faf5b-94c9-7a24-9306-bf1118ca3099/restockrocket-1-554/assets/restockrocket-product-bis.js' window._RestockRocketConfig.scriptUrlCollectionBis = 'https://cdn.shopify.com/extensions/019faf5b-94c9-7a24-9306-bf1118ca3099/restockrocket-1-554/assets/restockrocket-collection-bis.js' window._RestockRocketConfig.scriptHost = window._RestockRocketConfig.scriptUrlProduct.substring(0, window._RestockRocketConfig.scriptUrlProduct.lastIndexOf('/') + 1) // Canary override (STOQ-1287): prefer the Render host emitted into the // metafield-cached settings (api_host) when present, mirroring the same // override in assets/js/api.js. cachedSettings is populated above. Falls // back to the build-baked host for shops without the use_render_api_host // toggle (or environments where THEME_EXTENSION_API_HOST is unset), so the // setting.json + fetchEmbedConfig calls below route to the same host as the // rest of the extension's API traffic instead of staying on the baked host. window._RestockRocketConfig.host = (window._RestockRocketConfig.cachedSettings && window._RestockRocketConfig.cachedSettings.api_host) || 'https://app.restockrocket.io' // Deployed extension build number, read from the CDN asset host Shopify generates: // https://cdn.shopify.com/extensions/< uuid>/

SETTINGS_CACHE_DURATION) { console.debug('STOQ - settings changed recently, skipping cache'); return null; } return settings; } catch (error) { console.debug('STOQ - Error checking settings cache:', error); return null; } } function createRestockRocketContainer() { const restockRocketContainer = document.createElement('div'); restockRocketContainer.id = 'restock-rocket'; document.body.appendChild(restockRocketContainer); } function createRestockRocketScript(scriptUrl) { const restockRocketScriptElement = document.createElement('script'); restockRocketScriptElement.setAttribute('defer', 'defer'); restockRocketScriptElement.src = scriptUrl; document.body.appendChild(restockRocketScriptElement); } createRestockRocketContainer() console.debug('STOQ - extension activated') // Fire stoq_initialized once per page load so the funnel pipeline has a definitive // "our code ran on this page" signal independent of any cusHumber Dynamic Cargo 2 Flatbedtomer interaction. // Detected variants: the variants present in this page's Liquid context (product page has them; // collection/index/etc. don't expose variants from Liquid). Used to disambiguate "embed didn't // load" vs "embed loaded but the variant wasn't a preorder/BIS candidate" in order debug. try { const _stoqInitConfig = window._RestockRocketConfig; const _stoqDetectedVariantIds = (_stoqInitConfig.product && Array.isArray(_stoqInitConfig.product.variants)) ? _stoqInitConfig.product.variants.map(function(v) { return v.id }) : []; const _stoqSelectedVariantId = _stoqInitConfig.selected_variant_id; // Per-session page-load counter, incremented here in the INLINE code so it exists // even when the deferred bundle never runs. Paired with stoq_bundle_ready's // page_load_seq, it tells order-debug which page load an add fired on (and whether // the bundle had loaded on that load). var _stoqPageSeq = 0; try { _stoqPageSeq = (parseInt(window.sessi

onStorage.getItem('_stoq_pls') || '0', 10) || 0) + 1; window.sessionStorage.setItem('_stoq_pls', String(_stoqPageSeq)); } catch (e) { /* sessionStorage unavailable (private mode) — leave 0 */ } Shopify?.analytics?.publish?.('stoq_initialized', { cart_token: _stoqInitConfig.cartToken || '', page_url: window.location.href, page_type: _stoqInitConfig.pageType || '', shop_domain: _stoqInitConfig.shop || '', market_id: _stoqInitConfig.marketId || '', // Buyer's storefront country (localization.country.iso_code). Seeds the // pixel's extension_details blob so it rides forward onto Shopify's native // events too — a market can span countries, so this is the finer signal. country_code: _stoqInitConfig.countryIsoCode || '', detected_variant_ids: _stoqDetectedVariantIds, selected_variant_id: _stoqSelectedVariantId || '', page_load_seq: _stoqPageSeq, liquid_rendered_at: _stoqInitConfig.liquidRenderedAt || 0, app_version : _stoqInitConfig.appVersion || '', liquid_cache_age: _stoqInitConfig.liquidCacheAge, // Selected variant's stock posture as our app saw it at render — explains // whether we *should* have treated it as a preorder candidate. inventory_policy: (_stoqInitConfig.variantsInventoryPolicy || {})[_stoqSelectedVariantId] || '', inventory_quantity: (_stoqInitConfig.variantsInventoryQuantity || {})[_stoqSelectedVariantId], }); } catch (e) { console.debug('STOQ - stoq_initialized publish failed:', e); } // STOQ-1595: publish stoq_accelerated_checkout_clicked for every accelerated-checkout // click (Buy Now / dynamic checkout / Shop Pay installments) on ALL surfaces, before our // bundle loads, via one delegated capture-phase listener (catches late-rendered buttons). // Only on shops with preorders configured (shared `preordersConfigured` signal from the // derivation block above) — nothing to bypass otherwise. variant_id is read per-clicked-button // from its fo
rm so it's correct on collection/index/search too. block_accelerated_checkout // context (STOQ-1612) rides in `properties` (forwarded verbatim by the pixel, no schema // change): a buy_now click on a preorder variant while the gate was armed is a visible // bypass signal for order debug. Also sends page_url (top-level, like the pixel's native // events) and two preorder signals in properties (see below). try { var _sqTrack = window._RestockRocketConfig; if (_sqTrack.preordersConfigured) { document.addEventListener('click', function (e) { try { var t = e.target; if (!t || !t.closest) return; var host = t.closest('.shopify-payment-button, shopify-payment-terms'); if (!host) return; var channel = host.matches && host.matches('shopify-payment-terms') ? 'shop_pay_installments' : 'buy_now'; var form = host.closest('form'); var vidEl = form && form.querySelector('[name="id"]'); var variantId = (vidEl && vidEl.value) || _sqTrack.selected_variant_id || ''; // The enabled STOQ selling plan the clicked variant belongs to (if any), found once and // reused for in_enabled_plan / enrolled_plan_id / enrolled_plan_provider below. var _sqVidNum = Number(variantId); var _sqPlan = null; // Array.isArray guard (not `|| []`) so a truthy non-array sellingPlans can't throw and // silently drop the whole publish. var _sqPlans = Array.isArray(_sqTrack.sellingPlans) ? _sqTrack.sellingPlans : []; _sqPlans.forEach(function (pl) { if (!_sqPlan && pl && pl.enabled && Array.isArray(pl.variant_ids) && pl.variant_ids.indexOf(_sqVidNum) !== -1) { _sqPlan = pl; } }); Shopify?.analytics?.publish?.('stoq_accelerated_checkout_clicked', { variant_id: variantId, product_id: (_sqTrack.product && _sqTrack.product.id) || '', channel: channel, market_id: _sqTrack.marketId || '', country_code: _sqTrack.countryIsoCode || '', page_type: _sqTrack.pageType || '', cart_token: _sqTrack.cartToken || '', page_url: (window.location && window.location.href) || '', properties: { // Mirror the bundle's own preorder check (preorder.js checkInventoryProvider- // WithCachedFallback): the live set config.preorderVariantIds (refreshed after // page load by loadVariantInventoryData) OR the Liquid-injected // cachedPreorderVariantIds — always present, so it covers clicks before the // bundle loads (why this tracker is inline). ORing both (not preferring one) // matches the bundle and is correct even if the live set is an empty array. Both // hold integer ids; the click-time id comes off a DOM input (.value → string) or // selected_variant_id, so coerce with Number for a like-typed compare. is_preord er_variant: (function () { var vid = Number(variantId); var has = function (a) { return Array.isArray(a) && a.indexOf(vid) !== -1; }; return has(_sqTrack.preorderVariantIds) || has(_sqTrack.cachedPreorderVariantIds && _sqTrack.cachedPreorderVariantIds.preorder_variant_ids); })(), // Narrow, authoritative preorder signal: enrolled in an ENABLED STOQ selling plan // (is_preorder_variant above is the broad OOS+continue heuristic — non-STOQ too). in_enabled_plan: !!_sqPlan, // In-stock preorder signal: enrolled but currently IN STOCK (in the inStockVariantIds // set, not the OOS preorderVariantIds set). Same live-OR-cached pattern as // is_preorder_variant. is_preorder_variant OR is_instock_variant = "should sell via // the plan" regardless of stock, so an in-stock preorder bypass is detectable too. is_
instock_variant: (function () { var has = function (a) { return Array.isArray(a) && a.indexOf(_sqVidNum) !== -1; }; return has(_sqTrack.inStockVariantIds) || has(_sqTrack.cachedInStockVariantIds && _sqTrack.cachedInStockVariantIds.in_stock_variant_ids); })(), // The enrolled plan's Shopify selling-plan id + inventory_provider (stoq = STOQ tracks // the OOS count; shopify = in-stock preorder). Tells order-debug what kind of preorder // the Buy Now bypassed, without a downstream lookup. enrolled_plan_id: (_sqPlan && (_sqPlan.shopify_selling_plan_id || _sqPlan.shopify_selling_plan_group_id)) || '', enrolled_plan_provider: (_sqPlan && _sqPlan.inventory_provider) || '', block_enabled: !!(_sqTrack.cachedSettings && _sqTrack.cachedSettings.block_accelerated_checkout), gate_armed: !!_sqTrack.acceleratedGateArmed, gate_active _at_click: !!(document.documentElement && document.documentElement.classList.contains('stoq-buy-now-pending')), }, }); } catch (err) { /* never break checkout */ } }, true); } } catch (e) { /* fail open */ } function applyTranslations(settings) { try { // Skip translation logic entirely if multi-language is not enabled if (!settings || !settings.multi_language_enabled) { return settings; } if (!settings.translations) { console.debug('STOQ - No translations found, skipping translation'); return settings; } const normalizedLocale = window._RestockRocketConfig.normalizedLocale; const translations = settings.translations; if (!normalizedLocale) { // No matching locale has translations; drop payload to save memory console.debug('STOQ - No matching locale for translations. Available:', Object.keys(translations || {})); delete settings.translations; return settings; } console.debug(`STOQ - Applying translations for normalized locale: ${normalizedLocale} (original: ${window._RestockRocketConfig.locale})`); const translatedFields = translations[normalizedLocale]; if (translatedFields && typeof translatedFields === 'object') { Object.keys(translatedFields).forEach(function(key) { const value = translatedFields[key]; if (value !== null && value !== undefined && value !== '') { settings[key] = value; } }); } else { console.debug('STOQ - No translated fields found for locale:', normalizedLocale); } delete settings.translations; return settings; } catch (e) { console.debug('STOQ - error applying translations:', e); return settings; } } // Setup event listener for cart selling plan updates // This must be called before any scripts are loaded to avoid race conditions function setupCartSellingPlanUpdater(settings) { // Setup listener regardless - updateCartSellingPlans has its own guards // This ensures cleanup happens even when preorders are disabled globally // Listen for stoq:inventory-data-loaded event dispatched by api.js window.addEventListener('stoq:inventory-data-loaded', function(event) { console.debug('STOQ - Inventory data loaded, updating cart selling plans'); if (window._RestockRocket && window._RestockRocket.updateCartSellingPlans) { window._RestockRocket.updateCartSellingPlans() .then(hasUpdates => { if (hasUpdates) { console.debug('STOQ - cart selling plans updated successfully'); } else { console.debug('STOQ - no cart selling plan updates needed'); } }) .catch(error => { console.error('STOQ - error updating cart selling plans:', error); }); } }); } // ---- Live settings via the Storefront API (additive, does not gate init) ---- // The inli
ned `cachedSettings` comes from the app-embed Liquid render, which // Shopify edge-caches and can serve stale. Reading the same `settings` metafield // back over the Storefront API is a POST to /api/ <version>/graphql.json — never // CDN-cached — so it returns the live value on every page load. We fetch it // best-effort and stash it on `window._RestockRocketConfig.storefrontSettings` // so individual behaviours can migrate onto the fresh value over time. This is // PURELY ADDITIVE: it does NOT change the resolution flow below, never blocks // init, and silently no-ops on any failure / missing token. (function loadStorefrontSettings() { const cfg = window._RestockRocketConfig; if (!cfg.storefrontAccessToken || cfg.disableStorefrontApi === true) return; // Deferred to browser idle so this best-effort read runs strictly AFTER the // critical init flow and never competes with it for a connection — the call // is a live, uncached Storefront round-trip and can be slow (multi-second // TTFB observed). Nothing on the critical path waits for it. function run() { const query = 'query StoqSettings($namespace: String!) { shop { metafield(namespace: $namespace, key: "settings") { value } } }'; fetch( `https://${cfg.shop}/api/2025-07/graphql.json`, { method: 'POST', headers: { 'Content-Type': 'application/json', 'X-Shopify-Storefront-Access-Token': cfg.storefrontAccessToken, }, body: JSON.stringify({ query: query, variables: { namespace: cfg.metafieldNamespace } }), } ) .then(function(response) { if (!response.ok) { throw new Error('Storefront API HTTP ' + response.status); } return response.json(); }) .then(function(body) { if (body && body.errors && body.errors.length) { throw new Error('Storefront API errors: ' + body.errors.map(function(e) { return e && e.message; }).join(', ')); } const value = body && body.data && body.data.shop && body.data.shop.metafield && body.data.shop.metafield.value; if (!value) { throw new Error('Storefront API returned no settings metafield value'); } cfg.storefrontSettings = JSON.parse(value); console.debug('STOQ - stored live settings from Storefront API on config.storefrontSettings'); }) .catch(function(e) { console.debug('STOQ - Storefront settings fetch failed (non-fatal):', e && e.message); }); } if (typeof window.requestIdleCallback === 'function') { window.requestIdleCallback(run, { timeout: 5000 }); } else { setTimeout(run, 0); } })(); // First try to get settings from metafields with expiry check const cachedSettings = window._RestockRocketConfig.cachedSettings; const validCachedSettings = cachedSettings ? checkSettingsExpiry(cachedSettings) : null; if (validCachedSettings) { console.debug('STOQ - using cached settings'); initializeScripts(validCachedSettings); } else { console.debug('STOQ - fetching fresh settings'); const headers = { 'X-Shopify-Shop-Domain': window._RestockRocketConfig.shop || window.Shopify.shop, 'ngrok-skip-browser-warning': 'skiColorp' }; if (window.Shopify?.theme?.role === 'main') { headers['X-Shopify-Theme-Schema-Name'] = window.Shopify.theme.schema_name; headers['X-Shopify-Theme-Schema-Version'] = window.Shopify.theme.schema_version; headers['X-Shopify-Theme-Store-Id'] = window.Shopify.theme.theme_store_id; } fetch( `${window._RestockRocketConfig.host}/api/v1/setting.json?translation_locale=${window._RestockRocketConfig.normalizedLocale}`, { headers } ) .then(function(response) { if (!response.ok) { throw new Error('Network response was not ok'); } return response.json(); }) .then(function(settings) { initializeScripts(settings); }) .catch(function(error) { // If request failed and we have cached settings (even if expired), use them as fallback if (cachedSettings) { console.debug('STOQ - using expired cached settings as fallback'); initializeScripts(cachedSettings); } else { console.error('STOQ - failed to load settings:', error); } }) .catch(function(e) { console.error(e) }) } function fetchEmbedConfig(endpoint, apply) { return fetch( `${window._RestockRocketConfig.host}/api/v1/embed/${endpoint}.json`, { headers: { 'X-Shopify-Shop-Domain': window._RestockRocketConfig.shop || window.Shopify.shop, 'ngrok-skip-browser-warning': 'skip' } } ) .then(function(response) { if (!response.ok) throw new Error(`Failed to fetch ${endpoint}`); return response.json(); }) .then(function(data) { try { apply(data); } catch (applyError) { // Apply failures are programming bugs (e.g. response shape changed // server-side and the assignment threw). Surface them as console.error // so they're visible in browser logs, then re-throw to fall through // to the same Liquid-cached fallback as a fetch failure. console.error('STOQ - apply failed for ' + endpoint + ':', applyError); throw applyError; } }) .catch(function(error) { console.debug(`STOQ - using cached ${endpoint}:`, error.message); }); } function initializeScripts(settings) { settings = applyTranslations(settings); window._RestockRocketConfig.settings = settings; console.debug(`STOQ - settings configured for ${window._RestockRocketConfig.pageType}`); // Stale-Liquid resilience (default-on, per-shop opt-out via the // `disable_refresh_on_stale_liquid` Toggle, surfaced as the negative // `disable_refresh_on_stale_liquid` flag in settings.json so that // `undefined` -- in CDN-cached metafield payloads that predate this // key -- reads as `!undefined === true` and gets default-on behavior // immediately, no metafield rewrite required). // When the Liquid CDN cache is older than LIQUID_CACHE_MAX_AGE the in-page // selling_plans / integrations metafields can be wrong; refresh both from // the API before launching scr
ipts. Race against a 1000ms timeout so a slow // API can't block init indefinitely. If the timeout wins, the in-flight // fetches still complete and update window._RestockRocketConfig — the // bundle re-reads sellingPlans/integrations on every interaction, so the // late-arriving values benefit subsequent renders even though the first // paint may use the Liquid-cached values. On any failure the existing // Liquid-loaded values stay in place via fetchEmbedConfig's catch. if (!window._RestockRocketConfig.isLiquidCacheFresh && !settings.disable_refresh_on_stale_liquid) { console.debug('STOQ - Liquid cache stale, refreshing selling_plans + integrations'); Promise.race([ Promise.all([ fetchEmbedConfig('selling_plans', function(data) { if (data && Array.isArray(data.plans)) { window._RestockRocketConfig.sellingPlans = data.plans; window._RestockRocketConfig.disabledSellingPlanIds = data.disabled_plan_ids || []; } }), fetchEmbedConfig('integrations', function(data) { if (Array.isArray(data)) { window._RestockRocketConfig.integrations = data; } }) ]), new Promise(function(resolve) { setTimeout(resolve, 1000); }) ]).then(function() { loadScripts(settings); }); return; } loadScripts(settings); } function loadScripts(settings) { // Setup cart selling plan updater BEFORE loading any scripts to avoid race conditions setupCartSellingPlanUpdater(settings); if(settings.enable_app) { const hijackIntegration = window._RestockRocketConfig.integrations.find(function(integration) { return integration.type === 'hijack' && integration.enabled && integration.page_types.includes(window._RestockRocketConfig.pageType); }) // STOQ-1520: serve the lean back-in-stock-only build (no preorder/hijack code) // only to shops with NO preorder plans. Use the full build if preorder is on, // an enabled offer exists, or a disabled-but-kept plan id remains (cart sweep // must still strip those). Rationale in the PR. const hasEnabledOffer = Array.isArray(window._RestockRocketConfig.sellingPlans) && window._RestockRocketConfig.sellingPlans.some(function(plan) { return plan && plan.enabled; }); const hasDisabledPlanIds = Array.isArray(window._RestockRocketConfig.disabledSellingPlanIds) && window._RestockRocketConfig.disabledSellingPlanIds.length > 0; const usePreorderBuild = settings.preorder_enabled || hasEnabledOffer || hasDisabledPlanIds; const collectionScriptUrl = usePreorderBuild ? window._RestockRocketConfig.scriptUrlCollection : window._RestockRocketConfig.scriptUrlCollectionBis; const productScriptUrl = usePreorderBuild ? window._RestockRocketConfig.scriptUrlProduct : window._RestockRocketConfig.scriptUrlProductBis; const pageType = window._RestockRocketConfig.pageType; const collecti onPageTypes = ['collection', 'index', 'search', 'page']; if(collectionPageTypes.indexOf(pageType) !== -1 && (settings[`show_button_on_${pageType}`] || settings[`preorder_${pageType}_enabled`])) { createRestockRocketScript(collectionScriptUrl); } else if(pageType === 'product') { createRestockRocketScript(productScriptUrl); } else if(hijackIntegration) { createRestockRocketScript(window._RestockRocketConfig.scriptUrlCollection); } else if(usePreorderBuild) { // cart/article/blog/list-collections: full build so the cart sweep runs. createRestockRocketScript(window._RestockRocketConfig.scriptUrlCollection); } else { console.debug(`STOQ - no scripts enabled for ${pageType}`); } // Dispatch custom event when app is loaded // Cart selling plan updates will be triggered by stoq:inventory-data-loaded event const appLoadedEvent = new CustomEvent('stoq:loaded', { detail: { pageType: window._RestockR
Battery size
Quantity

Humber Dynamic Cargo 2 Flatbed

A practical flatbed version of the Dynamic Cargo 2, designed for business, utility and flexible load carrying. The flatbed layout gives a versatile platform for cargo boxes, tools, deliveries or custom transport setups.

Humber electric cargo bikes combine Danish design, practical everyday transport and reliable Promovec electric-assist systems. Built for family journeys, business use and day-to-day utility, the range focuses on comfort, stability and useful cargo space.

  • Electric-assist cargo bike designed for everyday transport
  • Promovec motor and battery system
  • Practical design for family, commuting and business use
  • Dealer-backed support and service network
  • Battery and motor warranty support from Humber/Promovec

Frequently Asked Questions

  • Please get in touch with a member of the team either by phone (01313745324) or email ([email protected]) where on of the team will be more than happy to help.

    ProjektRide Bike Shop Edinburgh

  • If the item is showing in stock, we aim to post the product within 24 hours. Please allow 5 working days to receive the item.

    Postage is free on orders over £50. Orders under £50, our postage charge is £3.99.

    We also have a physical store, if you are local please pop in -

    ProjektRide Bike Shop Edinburgh

    82 Newington Road, EH91QN, Edinburgh.