{"product_id":"halo-sub-4-20-bmx-rim-30mm-wide-double-wall-alloy-with-ss-eyelets-erd-392","title":"Halo Sub-4 20\" BMX Rim, 30mm Wide Double Wall Alloy with SS Eyelets, ERD 392","description":"\u003cp\u003eThe Halo Sub-4 20\" rim is engineered for BMX racers who demand top performance. Its 30mm wide double wall alloy design offers exceptional stiffness and strength without extra weight. With stainless steel eyelets and a precise ERD of 392, it ensures durability and reliable build quality.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in smooth or CNC silver sidewalls, this rim is versatile and race-proven, making it a solid foundation for competitive wheels. Designed to optimize speed and control, the Sub-4 elevates your ride to the next level.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBuilding lightweight, stiff BMX race wheels\u003c\/li\u003e\n  \u003cli\u003eWithstanding the rigors of competitive BMX racing\u003c\/li\u003e\n  \u003cli\u003eProviding durability with double wall alloy construction\u003c\/li\u003e\n  \u003cli\u003eCustomization with smooth or CNC silver sidewall options\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eNon-racing BMX applications where weight is less critical\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty off-road or dirt jumping beyond BMX race conditions\u003c\/li\u003e\n  \u003cli\u003eWheels requiring wider or different diameter rims\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this rim compatible with all BMX tires?\u003c\/strong\u003e\u003cbr\u003eThe Sub-4 rim is designed for 20\" BMX tires, ensuring compatibility with standard BMX race tires.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does ERD 392 mean?\u003c\/strong\u003e\u003cbr\u003eERD stands for Effective Rim Diameter, which is 392mm for this rim, important for accurate spoke length calculation during wheel building.\u003c\/p\u003e","brand":"Halo","offers":[{"title":"32h \/ Black","offer_id":45795555442863,"sku":"RMHAU02K","price":38.66,"currency_code":"GBP","in_stock":true},{"title":"36h \/ Black","offer_id":45795555475631,"sku":"RMHAU06K","price":38.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/rmha-sub4-render-k_f9501168-5040-4a9c-8df9-d335137c1479.jpg?v=1768528576","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/halo-sub-4-20-bmx-rim-30mm-wide-double-wall-alloy-with-ss-eyelets-erd-392","provider":"Swinnerton Cycles","version":"1.0","type":"link"}