{"id":639,"date":"2026-05-25T02:11:45","date_gmt":"2026-05-25T02:11:45","guid":{"rendered":"http:\/\/motobikemas.com\/product\/70-100-19-front-wheel-motorcycle-mousse-for-motocross-dirt-bikes\/"},"modified":"2026-05-27T04:21:00","modified_gmt":"2026-05-27T04:21:00","slug":"70-100-19-front-wheel-motorcycle-mousse-for-motocross-dirt-bikes","status":"publish","type":"product","link":"https:\/\/motobikemas.com\/fr\/produit\/70-100-19-front-wheel-motorcycle-mousse-for-motocross-dirt-bikes\/","title":{"rendered":"Mousse pour roue avant de moto 70\/100-19 pour Motocross et Dirt Bikes"},"content":{"rendered":"<h2>Professional 70\/100-19 Front Wheel Motorcycle Mousse for Motocross, Pit Bikes &amp; Youth Dirt Bikes<\/h2>\n<p>The Motobike Mas 70\/100-19 front wheel motorcycle mousse insert is a professional-grade closed-cell nitrile rubber foam tire insert engineered for the front wheels of motocross bikes, pit bikes, youth dirt bikes, and lightweight off-road motorcycles. This front-specific mousse completely replaces the inner tube to eliminate pinch flats on the front end, reduce unsprung rotating mass, and deliver consistent steering precision through every corner.<\/p>\n<p>Available in soft, medium, and standard density formulations, the 70\/100-19 front mousse fits smaller-displacement and youth-oriented motorcycles with 19-inch front wheels. As a Tianjin, China-based B2B manufacturer, Motobike Mas offers OEM private labeling, custom hardness formulations, and direct factory wholesale pricing for dealers, distributors, and race teams worldwide.<\/p>\n<hr \/>\n<h2>Sp\u00e9cifications techniques<\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>Taille<\/strong><\/td>\n<td>70\/100-19<\/td>\n<\/tr>\n<tr>\n<td><strong>Adaptation<\/strong><\/td>\n<td>70\/100-19 front tires (youth MX, pit bike, lightweight off-road)<\/td>\n<\/tr>\n<tr>\n<td><strong>Mat\u00e9riau<\/strong><\/td>\n<td>Mousse de caoutchouc nitrile \u00e0 cellules ferm\u00e9es<\/td>\n<\/tr>\n<tr>\n<td><strong>Options de densit\u00e9<\/strong><\/td>\n<td>Doux, moyen, standard<\/td>\n<\/tr>\n<tr>\n<td><strong>Poids<\/strong><\/td>\n<td>Approx. 0.9-1.1 kg<\/td>\n<\/tr>\n<tr>\n<td><strong>R\u00e9duction de la masse en rotation<\/strong><\/td>\n<td>Jusqu'\u00e0 40% vs. tube + blocage de jante robuste<\/td>\n<\/tr>\n<tr>\n<td><strong>Pression effective \u00e9quivalente<\/strong><\/td>\n<td>8-12 psi<\/td>\n<\/tr>\n<tr>\n<td><strong>Dur\u00e9e de vie<\/strong><\/td>\n<td>200-500 miles de course typiquement<\/td>\n<\/tr>\n<tr>\n<td><strong>Pays d'origine<\/strong><\/td>\n<td>Tianjin, Chine<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Principaux avantages<\/h2>\n<h3>Complete Front Flat Prevention<\/h3>\n<p>A front tire flat at speed is significantly more dangerous than a rear flat \u2014 it causes immediate loss of steering control. The 70\/100-19 front mousse insert eliminates this risk entirely. No pinch flats from square-edge landings, no puncture flats from rocks and thorns, and no valve stem failures. For racers on youth bikes and pit bikes, this means safer racing and no DNFs from front-end failures.<\/p>\n<h3>Reduced Front Rotating Mass<\/h3>\n<p>Reducing unsprung rotating mass on the front wheel dramatically improves steering response and suspension action. By eliminating the inner tube and allowing a lighter rim lock, the 70\/100-19 front mousse reduces front wheel rotating mass by up to 40%. The result: lighter steering feel, reduced deflection off roots and rocks, and better front-end feedback to the rider.<\/p>\n<h3>Consistent Steering Precision<\/h3>\n<p>Unlike pneumatic tires where front tire pressure changes with temperature and altitude, a mousse insert delivers consistent damping and steering characteristics from the first lap to the last. This predictability is especially valuable for younger riders developing their technique, as it removes the variable of changing tire pressure from the equation.<\/p>\n<h3>Lower Front Effective Pressure<\/h3>\n<p>The 70\/100-19 front mousse allows riders to run effective pressures as low as 8 psi with zero risk of pinch flats. On loose, wet, or sandy terrain this translates to more front-end grip and confidence in corner entry. The foam absorbs impacts that would collapse a tube at low pressure.<\/p>\n<h3>Zero Front Tire Maintenance<\/h3>\n<p>Once installed, the front mousse requires no maintenance for the life of the tire. No air pressure checks before practice, no valve stem concerns, no gauges needed. For parents of youth racers and pit bike riders, this simplifies race-day preparation significantly.<\/p>\n<hr \/>\n<h2>Guide des options de duret\u00e9<\/h2>\n<p>Selecting the correct mousse hardness for the front wheel is critical for both performance and safety. The wrong density can cause vague steering or excessive front-end deflection.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Densit\u00e9<\/th>\n<th>Pression effective<\/th>\n<th>Meilleur terrain<\/th>\n<th>Poids du cavalier<\/th>\n<\/tr>\n<tr>\n<td><strong>Douceur<\/strong><\/td>\n<td>8-10 psi<\/td>\n<td>Boue, sable, terreau, conditions humides<\/td>\n<td>Under 50 kg<\/td>\n<\/tr>\n<tr>\n<td><strong>Moyen<\/strong><\/td>\n<td>9-11 psi<\/td>\n<td>Terrain mixte, utilisation polyvalente<\/td>\n<td>50-70 kg<\/td>\n<\/tr>\n<tr>\n<td><strong>Standard<\/strong><\/td>\n<td>10-12 psi<\/td>\n<td>Rocailleux, sur terrain dur, d\u00e9sertique, \u00e0 grande vitesse<\/td>\n<td>Over 70 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Selection Guide for Front Mousse<\/h3>\n<ul>\n<li><strong>Choisir la douceur<\/strong> for youth riders, light pit bikes, and wet\/loose conditions where maximum front-end grip is needed. Best for riders under 50 kg.<\/li>\n<li><strong>Choisir un support<\/strong> as the all-rounder for most conditions \u2014 offers the best balance of front-end steering precision and bump absorption for intermediate riders.<\/li>\n<li><strong>Choisir la norme<\/strong> for aggressive adult riders on pit bikes, high-speed conditions, or heavier riders who need more front-end support under braking.<\/li>\n<\/ul>\n<hr \/>\n<h2>Compatibilit\u00e9<\/h2>\n<p>This 70\/100-19 front mousse insert fits all standard 70\/100-19 front tires. This size is commonly found on:<\/p>\n<h3>Youth Motocross Bikes<\/h3>\n<ul>\n<li>Kawasaki KX85 \/ KX100<\/li>\n<li>KTM 85 SX \/ 105 SX<\/li>\n<li>Husqvarna TC 85<\/li>\n<li>Yamaha YZ85<\/li>\n<li>Honda CRF150R \u2014 front wheel (some models)<\/li>\n<li>Suzuki RM85<\/li>\n<li>GasGas MC 85<\/li>\n<\/ul>\n<h3>Pit Bikes &amp; Mini Motocross<\/h3>\n<ul>\n<li>Honda CRF110F \u2014 aftermarket performance builds<\/li>\n<li>SSR 125cc \/ 140cc pit bikes<\/li>\n<li>YCF 125cc \/ 155cc models<\/li>\n<li>Pitster Pro 125cc \/ 155cc<\/li>\n<li>Kay\u014d 125cc pit bikes<\/li>\n<li>Thumpstar 125cc \/ 140cc<\/li>\n<li>Aftermarket pit bike race builds with 19-inch front wheel conversions<\/li>\n<\/ul>\n<h3>Lightweight Off-Road &amp; Dual-Sport<\/h3>\n<ul>\n<li>Honda CRF250F (select model years with 19-inch front)<\/li>\n<li>Yamaha TT-R230 (select model years)<\/li>\n<li>Suzuki DR200SE (select model years)<\/li>\n<li>Small-displacement enduro and trail bikes<\/li>\n<\/ul>\n<hr \/>\n<h2>Front Mousse vs. Front Inner Tube \u2014 Comparison<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Facteur<\/th>\n<th>Front Mousse Insert<\/th>\n<th>Front Inner Tube<\/th>\n<\/tr>\n<tr>\n<td><strong>Pr\u00e9vention de l'aplatissement<\/strong><\/td>\n<td>100% \u2014 no front flats possible<\/td>\n<td>Vulnerable to pinch flats, especially on landings<\/td>\n<\/tr>\n<tr>\n<td><strong>Steering precision<\/strong><\/td>\n<td>Constante tout au long de la course<\/td>\n<td>Changements avec la pression et la temp\u00e9rature<\/td>\n<\/tr>\n<tr>\n<td><strong>Maintenance<\/strong><\/td>\n<td>Z\u00e9ro - installez et oubliez<\/td>\n<td>V\u00e9rifier la pression avant chaque trajet<\/td>\n<\/tr>\n<tr>\n<td><strong>Masse en rotation<\/strong><\/td>\n<td>Inf\u00e9rieur (pas de chambre \u00e0 air + blocage de jante plus l\u00e9ger)<\/td>\n<td>Plus \u00e9lev\u00e9<\/td>\n<\/tr>\n<tr>\n<td><strong>Front-end safety<\/strong><\/td>\n<td>No sudden steering loss<\/td>\n<td>Sudden control loss on front flat<\/td>\n<\/tr>\n<tr>\n<td><strong>Difficult\u00e9s d'installation<\/strong><\/td>\n<td>Moderate \u2014 same technique as rear<\/td>\n<td>Plus facile<\/td>\n<\/tr>\n<tr>\n<td><strong>Adaptabilit\u00e9 au terrain<\/strong><\/td>\n<td>Fix\u00e9 par le choix de la densit\u00e9<\/td>\n<td>R\u00e9glable par pression<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Entretien et dur\u00e9e de vie<\/h2>\n<h3>Dur\u00e9e de vie pr\u00e9vue<\/h3>\n<p>A 70\/100-19 front mousse insert typically lasts between 200 and 500 racing miles, depending on terrain, rider weight, riding speed, and lubrication during installation. Front mousses generally wear more slowly than rear units due to lower heat generation.<\/p>\n<h3>Signes de remplacement<\/h3>\n<ul>\n<li>La mousse est sensiblement plus souple ou spongieuse que la mousse neuve.<\/li>\n<li>D\u00e9chirures visibles, morceaux manquants ou d\u00e9formation<\/li>\n<li>Sensation de direction floue - r\u00e9duction de la confiance dans le train avant<\/li>\n<li>Chaleur excessive pendant l'utilisation (la mousse doit \u00eatre ti\u00e8de et non chaude)<\/li>\n<\/ul>\n<h3>Conseils de stockage<\/h3>\n<ul>\n<li>Conserver dans un endroit frais et sec, \u00e0 l'abri de la lumi\u00e8re directe du soleil.<\/li>\n<li>Ne pas stocker comprim\u00e9 ou pli\u00e9<\/li>\n<li>Tenir \u00e0 l'\u00e9cart des sources d'ozone (moteurs \u00e9lectriques, \u00e9quipement de soudage)<\/li>\n<li>Dur\u00e9e de conservation dans un emballage scell\u00e9 : 3-5 ans<\/li>\n<\/ul>\n<hr \/>\n<h2>Guide d'installation (roue avant)<\/h2>\n<ol>\n<li>Retirer compl\u00e8tement le pneu avant et la chambre \u00e0 air de la jante.<\/li>\n<li>Clean front rim bead seat area thoroughly<\/li>\n<li>Appliquer g\u00e9n\u00e9reusement de la mousse lubrifiante \u00e0 l'int\u00e9rieur de la carcasse du pneu avant.<\/li>\n<li>Apply lubricant to the 70\/100-19 mousse insert itself<\/li>\n<li>Ins\u00e9rer la mousse dans le pneu, en la r\u00e9partissant uniform\u00e9ment autour de l'enveloppe.<\/li>\n<li>Monter un talon sur la jante \u00e0 l'aide d'un d\u00e9monte-pneu.<\/li>\n<li>Placer la deuxi\u00e8me perle avec pr\u00e9caution pour \u00e9viter de pincer la mousse.<\/li>\n<li>Installer la roue avant en veillant \u00e0 ce que l'axe et les entretoises soient correctement align\u00e9s.<\/li>\n<\/ol>\n<p><strong>Important :<\/strong> Never use petroleum-based lubricants on mousse inserts \u2014 they degrade nitrile rubber. Use only water-based mousse lubricant, especially on front wheel installations where proper seating is critical for safe operation.<\/p>\n<hr \/>\n<h2>Front Wheel vs. Rear Wheel Mousse \u2014 Key Differences<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Aspect<\/th>\n<th>Front Mousse (70\/100-19)<\/th>\n<th>Rear Mousse<\/th>\n<\/tr>\n<tr>\n<td><strong>Primary Demand<\/strong><\/td>\n<td>Steering precision &amp; bump absorption<\/td>\n<td>Traction &amp; torque transmission<\/td>\n<\/tr>\n<tr>\n<td><strong>Weight Impact<\/strong><\/td>\n<td>Critical for steering feel<\/td>\n<td>Critical for acceleration<\/td>\n<\/tr>\n<tr>\n<td><strong>Heat Generation<\/strong><\/td>\n<td>Lower (less braking\/acceleration load)<\/td>\n<td>Higher (driving load)<\/td>\n<\/tr>\n<tr>\n<td><strong>Flat Consequence<\/strong><\/td>\n<td>Immediate loss of steering control<\/td>\n<td>Loss of drive, manageable<\/td>\n<\/tr>\n<tr>\n<td><strong>Typical Lifespan<\/strong><\/td>\n<td>Usually longer than rear<\/td>\n<td>Shorter due to higher loads<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>B2B Wholesale - Pourquoi un partenariat avec Motobike Mas ?<\/h2>\n<p>Motobike Mas est un fabricant d'inserts en mousse pour les pneus de course de motos tout-terrain bas\u00e9 \u00e0 Tianjin, en Chine. Nous fournissons les concessionnaires, les distributeurs, les \u00e9quipes de course et les marques du march\u00e9 secondaire dans le monde entier avec des prix directs et une personnalisation compl\u00e8te.<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>Prix d'usine<\/strong><\/td>\n<td>Vente en gros directe - pas d'interm\u00e9diaires<\/td>\n<\/tr>\n<tr>\n<td><strong>OEM \/ Label priv\u00e9<\/strong><\/td>\n<td>Personnalisation de la marque, de l'emballage et des couleurs<\/td>\n<\/tr>\n<tr>\n<td><strong>Formulations personnalis\u00e9es<\/strong><\/td>\n<td>Adjust density and material properties including front-specific formulations<\/td>\n<\/tr>\n<tr>\n<td><strong>MOQ<\/strong><\/td>\n<td>Contact pour les minimums<\/td>\n<\/tr>\n<tr>\n<td><strong>Exp\u00e9dition<\/strong><\/td>\n<td>Transport maritime (FOB Tianjin), fret a\u00e9rien, DDP disponible<\/td>\n<\/tr>\n<tr>\n<td><strong>\u00c9chantillons<\/strong><\/td>\n<td>\u00c9chantillons de pr\u00e9-production pour \u00e9valuation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Produits apparent\u00e9s<\/h2>\n<ul>\n<li><a href=\"https:\/\/motobikemas.com\/fr\/produit\/100-90-19-high-performance-motorcycle-mousse-for-motocross-tires\/\">Mousse moto haute performance 100\/90-19<\/a> - Mousse de roue arri\u00e8re pour MX et enduro<\/li>\n<li><a href=\"https:\/\/motobikemas.com\/fr\/produit\/110-90-19-insert-mousse-motocross-mx-dirt-bike-racing\/\">110\/90-19 Motocross Mousse Insert<\/a> - Mousse de roue arri\u00e8re pour les motos MX de grande taille<\/li>\n<li><a href=\"https:\/\/motobikemas.com\/fr\/produit\/120-90-18-enduro-motorcycle-mousse-insert\/\">120\/90-18 Enduro Moto Mousse Insert<\/a> - Pour les roues arri\u00e8re d'enduro et de rallye (18 pouces)<\/li>\n<\/ul>\n<hr \/>\n<h2>Questions fr\u00e9quemment pos\u00e9es<\/h2>\n<h3>Is 70\/100-19 a front or rear tire size?<\/h3>\n<p>The 70\/100-19 size is primarily a front wheel application, commonly found on youth motocross bikes (85cc-100cc class), pit bikes, and certain lightweight off-road motorcycles. The narrower 70 mm section width is designed for smaller front-end applications where lighter steering response is needed.<\/p>\n<h3>How long does a 70\/100-19 front mousse last?<\/h3>\n<p>Typically 200-500 racing miles. Front mousses often last longer than rear units because they generate less heat under braking compared to the driving loads on a rear mousse.<\/p>\n<h3>What bikes use a 70\/100-19 front tire?<\/h3>\n<p>Common applications include the Kawasaki KX85\/KX100, KTM 85 SX, Husqvarna TC 85, Yamaha YZ85, Suzuki RM85, GasGas MC 85, and many 125cc-155cc pit bikes with 19-inch front wheels.<\/p>\n<h3>Can I run a mousse on the front wheel only?<\/h3>\n<p>Yes. Many racers choose a mousse for the front wheel for safety and consistency while running a tube on the rear. However, running mousse on both wheels provides the best overall performance and flat protection.<\/p>\n<h3>Is front mousse installation different from rear?<\/h3>\n<p>The basic installation process is the same \u2014 the key difference is that proper seating is even more critical on the front wheel because any imbalance or improper seating will be felt through the handlebars as vibration or wobble.<\/p>\n<h3>Motobike Mas offre-t-il des \u00e9chantillons avant les commandes en gros ?<\/h3>\n<p>Oui. Les clients B2B peuvent demander des \u00e9chantillons pour \u00e9valuation avant de s'engager sur des commandes en volume. Contactez notre \u00e9quipe commerciale pour organiser l'envoi d'\u00e9chantillons.<\/p>\n<h3>Quel est le d\u00e9lai de livraison pour les commandes OEM ?<\/h3>\n<p>Le d\u00e9lai d'ex\u00e9cution typique est de 15 \u00e0 30 jours pour la production OEM standard, en fonction de la quantit\u00e9 et des exigences de personnalisation.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Motobike Mas 70\/100-19 front wheel motorcycle mousse insert is a nitrile rubber foam tire insert for youth MX, pit bikes, and dirt bike front wheels. Available in soft, medium, and standard density. Eliminates front pinch flats, reduces rotating mass. Factory direct B2B wholesale from Tianjin, China.<\/p>","protected":false},"featured_media":607,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[18],"product_tag":[89,94,104,99,90,100,102,97,95,101,93,92,108,105,98,107,106,91,103,96],"class_list":["post-639","product","type-product","status-publish","has-post-thumbnail","product_cat-motorcycle-mousse","product_tag-70-100-19","product_tag-85cc-front-tire","product_tag-crf110","product_tag-front-flat-prevention","product_tag-front-wheel-mousse","product_tag-junior-racer","product_tag-kid-mx","product_tag-ktm-85","product_tag-kx85","product_tag-lightweight-mousse","product_tag-mini-dirt-bike","product_tag-pit-bike-tire","product_tag-pitster-pro","product_tag-ssr-pit-bike","product_tag-steering-precision","product_tag-thumpstar","product_tag-ycf-125","product_tag-youth-motocross","product_tag-youth-racing","product_tag-yz85","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.1 (Yoast SEO v25.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>70\/100-19 Front Wheel Motorcycle Mousse for Motocross &amp; Dirt Bikes | Motobike Mas<\/title>\n<meta name=\"description\" content=\"B2B wholesale 70\/100-19 front wheel motorcycle mousse for motocross, pit bikes &amp; youth dirt bikes. 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Nitrile rubber foam insert eliminates front pinch flats. 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