{"product_id":"2-pack-110-100-18-4-50-x-18-motorcycle-inner-tubes","title":"(2-Pack) 110\/100-18 (4.50 X 18) Motorcycle Inner Tubes","description":"\u003cp\u003e\u003cstrong\u003eThese AR-PRO 110\/100-18 (4.50 x 18) inner tubes are a two-piece set of 1.6mm natural rubber tubes built with TR4 valve stems for reliable off-road and motocross use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eSwap in a dependable pair of replacement inner tubes designed specifically for 110\/100-18 tires. Made from standard 1.6mm natural rubber, these tubes are intended to flex with the tire, resist abrasion, and maintain a secure valve seat. Each pack contains two individually vulcanized tubes with TR4 stems that work with common pumps and are suitable for dirt bikes and other 18\" rim off-road applications.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these tubes hold up on rough trails?\u003c\/h3\u003e\n\u003cp\u003eThese AR-PRO tubes are produced from natural rubber formulated to resist abrasion and stretching, reducing the risk of sudden failure from common off-road stresses. The even molding and appropriate wall thickness help limit pinch flats and valve-area splitting when riding over rocks, roots, and ruts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1.6mm standard wall thickness for balanced flexibility and protection\u003c\/li\u003e\n  \u003cli\u003eNatural rubber provides superior abrasion resistance compared to some synthetic blends\u003c\/li\u003e\n  \u003cli\u003eVulcanized valve base prevents rotation and splitting around the stem\u003c\/li\u003e\n  \u003cli\u003eDesigned to withstand typical off-road impacts and rough terrain\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these tubes fit my motorcycle wheels and pumps?\u003c\/h3\u003e\n\u003cp\u003eThe tubes are sized for 110\/100-18 tires (commonly referenced as 4.50 x 18) and are intended for 18-inch rims. They include TR4 valve stems — short, straight, threaded stems compatible with most hand pumps, compressors, and tire inflators used in motorcycle maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCorrect fit for 110\/100-18 (4.50 x 18) tires and standard 18\" rims\u003c\/li\u003e\n  \u003cli\u003eTR4 threaded valve stems compatible with typical pump heads and caps\u003c\/li\u003e\n  \u003cli\u003eVulcanized attachment keeps valve seated for accurate inflation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these tubes help prevent common flats like pinch punctures?\u003c\/h3\u003e\n\u003cp\u003eThe tubes are molded to minimize thin spots and irregularities that can pinch between rim and tire. Natural rubber’s flexibility absorbs impacts better than some stiff materials, lowering the risk of sudden pinch flats when landing jumps or hitting obstacles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUniform molding reduces pinch-prone seams and weak points\u003c\/li\u003e\n  \u003cli\u003eNatural rubber offers pliability that cushions rim-tire contact\u003c\/li\u003e\n  \u003cli\u003eEnhanced puncture resistance to dampen small sharp-object penetrations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow many tubes are included and what maintenance should I follow?\u003c\/h3\u003e\n\u003cp\u003eThis product is sold as a two-pack, giving you a ready spare for trail repairs or simultaneous replacement on dual-wheel setups. Proper installation, correct inflation pressures for your bike and riding conditions, and routine inspections around the valve base and bead area will extend tube life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePack contains two AR-PRO 110\/100-18 inner tubes\u003c\/li\u003e\n  \u003cli\u003eInspect for cuts, embedded debris, and valve seating before installation\u003c\/li\u003e\n  \u003cli\u003eUse recommended tire pressure for your motorcycle and adjust for terrain\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Riders who need a straightforward, cost-effective inner tube solution for off-road, dirt bike, and motocross tires that fit 18-inch rims. These AR-PRO tubes suit weekend trail riders, amateur racers, and mechanics looking for reliable TR4 valve compatibility and natural rubber resilience without specialty materials or custom sizing.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these inner tubes compatible with standard bike pumps?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the TR4 threaded valve stems fit most hand pumps and common inflators used for motorcycle tires.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this pack include one or two tubes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This is a two-pack; you receive two 110\/100-18 natural rubber inner tubes per order.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AR-PRO","offers":[{"title":"Default Title","offer_id":48087051534494,"sku":"B09TT1C8FB","price":33.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ar-pro-front-packaging-2pack_6cd04d6e-2e8f-487a-86b0-f837a8493be6.jpg?v=1785915414","url":"https:\/\/northtrailauto.ca\/products\/2-pack-110-100-18-4-50-x-18-motorcycle-inner-tubes","provider":"North Trail Auto","version":"1.0","type":"link"}