Dear Mr. Know-It-All,
Is it safe to run a NitroMousse on a dual-sport that spends limited time on the street? I mostly ride dirt trails.
via [email protected]

Good question, MJ. Mousses are not tear-offs, and while they reward you with a flat-free ride (there is no dollar equivalent to how important this is!), they are sometimes finicky and are unadjustable once you start your ride. But, we’re big-time NitroMousse believers and, like you, spend most of our off-road time on the trails, not the tarmac. Remember, heat is the enemy, so high-speed long hauls with a mousse-equipped tire will have an adverse effect on the foam insert’s life expectancy. But, trail riding, even with a modicum of street, will not hurt them. Remember, proper lubrication is crucial. This is from NitroMousse: “Lube reduces the friction between the inside of the tire and Nitromousse during operation. Use all of the supplied lubricant when mounting or remounting a Nitromousse. Never mount a Nitromousse without proper lubrication. This will cause severe premature wear, or can cause the mousse to fail completely. Never mount a Nitromousse without proper lubrication.” For our faster trail riding and tarmac-dotted dual-sport rides, we use the firmer NitroMousse properly fitted with the correct tire. This, too, is important, as a ‘too-loose’ mousse fit allows the tire to over-flex and roll, which creates more heat and is hard on the insert and super offensive to the machine’s handling traits. NitroMousse has a fitment chart for which insert fits which tire.
Good luck. We’re all counting on you! 

If you don’t mind displaying your ignorance for the world to see, who are we to deny the opportunity? Send evidence of your failures to:
[email protected] or Mr. Know-It-All, Dirt Bike, P.O. Box 957, Valencia, CA 91380-9057

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