{"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\/pt\/produto\/70-100-19-front-wheel-motorcycle-mousse-for-motocross-dirt-bikes\/","title":{"rendered":"70\/100-19 Front Wheel Motorcycle Mousse for Motocross &amp; 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>Technical Specifications<\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>Size<\/strong><\/td>\n<td>70\/100-19<\/td>\n<\/tr>\n<tr>\n<td><strong>Fitment<\/strong><\/td>\n<td>70\/100-19 front tires (youth MX, pit bike, lightweight off-road)<\/td>\n<\/tr>\n<tr>\n<td><strong>Material<\/strong><\/td>\n<td>Closed-cell nitrile rubber foam<\/td>\n<\/tr>\n<tr>\n<td><strong>Density Options<\/strong><\/td>\n<td>Soft, Medium, Standard<\/td>\n<\/tr>\n<tr>\n<td><strong>Weight<\/strong><\/td>\n<td>Approx. 0.9-1.1 kg<\/td>\n<\/tr>\n<tr>\n<td><strong>Rotating Mass Reduction<\/strong><\/td>\n<td>Up to 40% vs. tube + heavy-duty rim lock<\/td>\n<\/tr>\n<tr>\n<td><strong>Effective Pressure Equivalent<\/strong><\/td>\n<td>8-12 psi<\/td>\n<\/tr>\n<tr>\n<td><strong>Service Life<\/strong><\/td>\n<td>200-500 racing miles typical<\/td>\n<\/tr>\n<tr>\n<td><strong>Country of Origin<\/strong><\/td>\n<td>Tianjin, China<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Key Benefits<\/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>Hardness Options Guide<\/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>Density<\/th>\n<th>Effective Pressure<\/th>\n<th>Best Terrain<\/th>\n<th>Rider Weight<\/th>\n<\/tr>\n<tr>\n<td><strong>Suave<\/strong><\/td>\n<td>8-10 psi<\/td>\n<td>Mud, sand, loam, wet conditions<\/td>\n<td>Under 50 kg<\/td>\n<\/tr>\n<tr>\n<td><strong>M\u00e9dio<\/strong><\/td>\n<td>9-11 psi<\/td>\n<td>Mixed terrain, all-around use<\/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>Rocky, hard-packed, desert, high-speed<\/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>Choose Soft<\/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>Choose Medium<\/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>Choose Standard<\/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>Compatibility<\/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>Factor<\/th>\n<th>Front Mousse Insert<\/th>\n<th>Front Inner Tube<\/th>\n<\/tr>\n<tr>\n<td><strong>Flat prevention<\/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>Consistent throughout race<\/td>\n<td>Changes with pressure and temperature<\/td>\n<\/tr>\n<tr>\n<td><strong>Maintenance<\/strong><\/td>\n<td>Zero \u2014 install and forget<\/td>\n<td>Check pressure before every ride<\/td>\n<\/tr>\n<tr>\n<td><strong>Rotating mass<\/strong><\/td>\n<td>Lower (no tube + lighter rim lock)<\/td>\n<td>Higher<\/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>Installation difficulty<\/strong><\/td>\n<td>Moderate \u2014 same technique as rear<\/td>\n<td>Easier<\/td>\n<\/tr>\n<tr>\n<td><strong>Terrain adaptability<\/strong><\/td>\n<td>Fixed by density choice<\/td>\n<td>Adjustable via pressure<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Maintenance and Service Life<\/h2>\n<h3>Expected Lifespan<\/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>Signs It Needs Replacement<\/h3>\n<ul>\n<li>Mousse feels noticeably softer or spongy compared to new<\/li>\n<li>Visible tears, chunks missing, or deformation<\/li>\n<li>Vague steering feel \u2014 reduced front-end confidence<\/li>\n<li>Excessive heat during use (mousse should be warm, not hot)<\/li>\n<\/ul>\n<h3>Storage Tips<\/h3>\n<ul>\n<li>Store in a cool, dry place away from direct sunlight<\/li>\n<li>Do not store compressed or folded<\/li>\n<li>Keep away from ozone sources (electric motors, welding equipment)<\/li>\n<li>Shelf life in sealed packaging: 3-5 years<\/li>\n<\/ul>\n<hr \/>\n<h2>Installation Guide (Front Wheel)<\/h2>\n<ol>\n<li>Remove existing front tire and tube from rim completely<\/li>\n<li>Clean front rim bead seat area thoroughly<\/li>\n<li>Apply mousse lubricant generously inside the front tire casing<\/li>\n<li>Apply lubricant to the 70\/100-19 mousse insert itself<\/li>\n<li>Insert mousse into tire, working evenly around the casing<\/li>\n<li>Mount one bead onto the rim using tire irons<\/li>\n<li>Seat second bead carefully to avoid pinching the mousse<\/li>\n<li>Install front wheel, ensuring axle and spacers are properly aligned<\/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 \u2014 Why Partner with Motobike Mas?<\/h2>\n<p>Motobike Mas is a Tianjin, China-based manufacturer of mousse inserts for off-road motorcycle racing tires. We supply dealers, distributors, race teams, and aftermarket brands worldwide with factory-direct pricing and full customization.<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>Factory Pricing<\/strong><\/td>\n<td>Direct wholesale \u2014 no middlemen<\/td>\n<\/tr>\n<tr>\n<td><strong>OEM \/ Private Label<\/strong><\/td>\n<td>Custom branding, packaging, and colors<\/td>\n<\/tr>\n<tr>\n<td><strong>Custom Formulations<\/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 for minimums<\/td>\n<\/tr>\n<tr>\n<td><strong>Shipping<\/strong><\/td>\n<td>Sea (FOB Tianjin), air freight, DDP available<\/td>\n<\/tr>\n<tr>\n<td><strong>Samples<\/strong><\/td>\n<td>Pre-production samples for evaluation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Related Products<\/h2>\n<ul>\n<li><a href=\"https:\/\/motobikemas.com\/pt\/produto\/100-90-19-high-performance-motorcycle-mousse-for-motocross-tires\/\">100\/90-19 High Performance Motorcycle Mousse<\/a> \u2014 Rear wheel mousse for MX and enduro<\/li>\n<li><a href=\"https:\/\/motobikemas.com\/pt\/produto\/110-90-19-motocross-mousse-insert-mx-dirt-bike-racing\/\">110\/90-19 Motocross Mousse Insert<\/a> \u2014 Rear wheel mousse for full-size MX bikes<\/li>\n<li><a href=\"https:\/\/motobikemas.com\/pt\/produto\/120-90-18-enduro-motorcycle-mousse-insert\/\">120\/90-18 Enduro Motorcycle Mousse Insert<\/a> \u2014 For enduro and rally rear wheels (18-inch)<\/li>\n<\/ul>\n<hr \/>\n<h2>Frequently Asked Questions<\/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>Does Motobike Mas offer samples before bulk orders?<\/h3>\n<p>Yes. B2B clients can request samples for evaluation before committing to volume orders. Contact our sales team to arrange sample shipments.<\/p>\n<h3>What is the lead time for OEM orders?<\/h3>\n<p>Typical lead time is 15-30 days for standard OEM production, depending on quantity and customization requirements.<\/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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