Massi Inner Tube Massi 3/8 AV Brompton — made in Spain. The Massi 3/8 AV Brompton inner tube is a high-quality product from the well-regarded Massi brand.…
Massi Inner Tube Massi 3/8 AV Brompton, sold under the Massi brand, is manufactured in Spain. That origin is recorded at the "Internet-Sourced" evidence grade.
Massi is headquartered in Spain; a brand's home country is not evidence of where its goods are made, and the two are tracked separately.
Origin evidence last reviewed 2026-10-23.
Every origin claim on Hesperia Market is graded by the strength of its evidence and linked to its sources.