Medium rear volume — traction up, flats out.

G-Mousse Rear Medium is the workhorse insert for mid-size MX and XC rears: enough volume for grip and bump compliance, still light and race-ready when a tube would risk a DNF.

Built for

100/100-18 · 110/90-19 MX; softer feel on 110/100-18 Cross Country.

Pairing

• GOP3244TN · GT232N Holeshot 110/90-19
• GOP4717 · GT232N 110/100-18 (CC Soft / Medium class)

Smaller: MOU2010N. Larger / soft enduro: MOU2012N.

Specs

• Code: MOU2011N
• Size class: Rear Medium · 18"/19"

• Construction: dual-heat polymer insert (replaces inner tube)
• Flat protection: 100%% competition flat-proof when correctly fitted
• Feel: fixed equivalent pressure (typical market range ~0.7–0.9 bar / ~10–13 psi; see pairings for estimates)
• Included: mousse lube
• Use: off-road / competition only — not road legal
• Fitment: designed for Goldentyre tyre carcasses (other brands may differ in section and wall thickness)
• Care: avoid prolonged asphalt and extreme heat (premature wear)
• Note: no warranty for improper use