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MICHELINOff-RoadDirt/MX

Bib Mousse™ Standard

Foam insert technology that kills punctures dead — built for serious enduro, motocross, and rally competition where flats are simply not an option.

MTC8.7/10★★★★☆Off-Road · Competition Only
MICHELIN Bib Mousse™ Standard motorcycle tiremotorcycletireco.com
BrandMICHELIN
TypeOff-Road / Dirt/MX
Sizes7
Closed-cell foam core physically replaces air — zero puncture risk, zero pinch flats, no matter what the terrain throws at you
Delivers a consistent 13 psi equivalent feel in all conditions — no pressure drift from heat, cold, or elevation changes
Runs lighter than ultra-heavy-duty tubes while absorbing impacts with greater predictability than conventional air systems
Proven at the factory race level across cross-country rally, enduro, and motocross — not lab-tested theory, real competition hardware
Rated for a six-month service life from installation with correct fitting gel use — treat it as a performance consumable, not a set-and-forget part
Engineered exclusively for Michelin off-road competition tires — sizing and firmness are tuned to those specific carcasses for proper fit and handling
Select Size

Prices use MTC dealer formula · Load/speed index explained in the FAQ below

Fulfillment

Live pricing · Walk-in mount & balance available

Save below MSRPIn-stock · ships fastWalk-in install
MTC Rating
MTC Score
8.7/10
★★★★☆
Purpose-built for riders who race or ride aggressively off-road and cannot afford to lose a day — or a race — to a flat tire
Performance
Dry Grip8.5
Wet Grip8.0
Street Manners3.0
Track Capability9.5
Mileage7.0
Value8.0
Best For
Enduro Racer
You're deep in a multi-hour off-road event where a single flat can cost you a finish or a podium. The Bib Mousse removes pressure management from your mental checklist entirely, letting you ride with full aggression knowing the tire will perform the same on lap one as it does on lap ten.
Perfect Match
Adventure Tourer
Pushing into remote backcountry — thorny desert scrub, jagged volcanic rock, technical singletrack miles from the nearest town — you need mechanical confidence, not a tube repair kit. The Bib Mousse gives you that margin, trading pressure tunability for complete flat immunity when support isn't coming.
Great Match
Casual Trail Rider
If you're riding groomed trails close to home with a support rig nearby, the Bib Mousse's installation demands and six-month replacement schedule may outweigh the benefits. A quality heavy-duty tube is a simpler, more practical solution for lower-intensity recreational riding.
Consider Heavy-Duty Tubes
Full Size Chart & Part Numbers
Pos.SizeLoad/SpeedP/NMFR Part #UPC-AOur Price / MSRP
OOSN/ABM52796433528707630629
OOS100/90-19BM51440343528700573350
OOS120/90-18BM53817013528700573374
OOS140/80-18BM54550713528700573312
OOS140/80-18BM55708833528700573312
OOS80/100-21BM01630183528700573343
OOS90/100-210350-0061225133528703380009
Frequently Asked
Every ride puts the foam through repeated compression and rebound cycles, which gradually breaks down the cellular structure that gives it consistent feel. Hard racing use speeds that process up considerably. Unlike a slow air leak you can top off, foam degradation quietly changes your handling — which makes hitting the replacement interval a safety issue, not just a maintenance checkbox.
Yes, and skipping it is a mistake. The gel does two jobs: it lubricates the mousse enough to seat it properly during installation, and it continues protecting against friction between the foam and tire carcass during use. Going in dry risks tearing the mousse on install and dramatically shortens its working life through accelerated internal wear.
Michelin engineers this insert specifically for their own off-road competition tire lineup — the dimensions and foam firmness are matched to those carcasses. Fitting it inside a different brand's tire can mean poor seating, unpredictable handling, and early mousse failure. This is a genuine engineering fit issue, not a sales tactic.
For most off-road competition and aggressive trail work, it feels natural and confidence-inspiring. What you give up is the ability to drop pressure for sand or firm it up for rocks. You adapt your riding technique to the terrain instead of your tire pressure — a trade serious competitors make without hesitation for the consistency it delivers.
No — this is strictly a dirt-only, competition-focused product. The foam's firmness and heat characteristics are optimized for off-road use, and putting it on pavement creates handling and heat buildup problems it isn't designed to handle. Dual-sport riders splitting time between street and trail should look at conventional tubes or a system like Tubliss instead.
Watch for a change in how the bike feels through corners and over impacts — subtle inconsistency is the first sign. With the wheel off the bike, visible deformation or flattening is a clear indicator. Most racers just replace on a strict calendar schedule regardless of feel. Don't wait for a catastrophic failure — it won't come like a blown tube, it comes as gradual degradation you might not notice until it costs you.

Michelin Bib Mousse Standard Tires in Orange County — MTC

Motorcycle Tire Center in Orange, CA is your Orange County source for Michelin Bib Mousse inserts — the foam tube replacement system that's become the gold standard for serious off-road competition riders. If you race enduro, motocross, or push remote backcountry terrain where a flat means a DNF or a very long walk, the Bib Mousse is worth every bit of its reputation. We stock Michelin's off-road competition lineup and can talk through fitment, installation requirements, and the proper gel application process with you in person. Walk in or call us at (714) 516-9059.

Unlike a product you just bolt on and forget, the Bib Mousse is a performance consumable — it demands correct installation technique, Michelin's fitting gel, and a realistic six-month replacement schedule. We respect that, and we'll give you straight answers about whether it's the right call for how and where you ride. Not every off-road rider needs a mousse insert; if you're a casual trail rider with easy trail access and a truck nearby, we'll tell you honestly that a heavy-duty tube might serve you better.

When you're ready to mount up, bring your wheels into MTC. Our walk-in mount and balance service is straightforward: $69 mount, $9.95 balance, and $3.50 disposal per tire — below MSRP on the tires themselves. We serve riders from across Orange County including Irvine, Anaheim, Huntington Beach, Newport Beach, Mission Viejo, and Fullerton. Questions about compatibility or sizing? Call (714) 516-9059 and talk to someone who actually knows off-road tires.

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