{"product_id":"topeak-dynapack-dx-black-expandable-bike-seatpost-bag-with-helmet-storage-and-reflective-safety-features","title":"Topeak Dynapack DX Black Expandable Bike Seatpost Bag with Helmet Storage and Reflective Safety Features","description":"\u003cp\u003eThe Topeak Dynapack DX Black is an ideal accessory for cyclists who need ample storage without the hassle of a rack. Its expandable top compartment easily fits a helmet, shoes, or other bulky items, making it perfect for longer rides or commutes. With a divided main compartment and a weatherproof zip pocket, your essentials stay organized and protected.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for easy attachment with a QR clamp (Fixer 7) that fits seatposts from 25.4 to 34.9 mm, this 9.7-litre bag offers practical capacity while remaining compact and lightweight. The 3M reflective strip and RedLite clip enhance visibility and safety on the road.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eStoring bulky items like helmets and shoes without a rear rack\u003c\/li\u003e\n  \u003cli\u003eKeeping belongings organized and weather-protected\u003c\/li\u003e\n  \u003cli\u003eEasy and secure attachment to a wide range of seatposts\u003c\/li\u003e\n  \u003cli\u003eIncreasing rider visibility with reflective and light features\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCarrying extremely heavy loads beyond its 9.7-litre capacity\u003c\/li\u003e\n  \u003cli\u003eUse on seatposts smaller than 25.4 mm or larger than 34.9 mm\u003c\/li\u003e\n  \u003cli\u003eThose looking for a bag with rigid frame support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan I fit a full-face helmet in the expandable top?\u003c\/strong\u003e\u003cbr\u003eThe expandable top is designed for standard helmets, shoes, and similarly sized items but may not accommodate larger full-face helmets comfortably.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the bag waterproof?\u003c\/strong\u003e\u003cbr\u003eThe bag features a weatherproof zip pocket to protect valuables, but the main compartment offers water resistance rather than full waterproofing.\u003c\/p\u003e","brand":"Topeak","offers":[{"title":"Default Title","offer_id":45471651922095,"sku":"TC2713B","price":79.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1418920036-54715000.jpg?v=1768513300","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/topeak-dynapack-dx-black-expandable-bike-seatpost-bag-with-helmet-storage-and-reflective-safety-features","provider":"Swinnerton Cycles","version":"1.0","type":"link"}