BUYER GUIDE / CAPACITY

HOW SHOULD A BUYER SELECT MOTORCYCLE TOP CASE CAPACITY?

Use capacity as the first comparison field, then verify dimensions, vehicle fit and the exact product configuration separately.

Content basis updated2026-08-25

PP Square

MT BOX / Q&A

Quick answer

Shortlist the required liter capacity, then check whether the page publishes outer dimensions, inner dimensions or capacity only. Capacity alone does not prove helmet fit, mounting compatibility or the usable internal envelope.

Start with the published capacity range.

The current catalog spans PP Round capacities from 33L to 42L, a 43L ABS Travel Box, Aluminum 46L/56L/68L, PP Square 36L/45L/55L/65L/70L and Stainless Steel 45L/60L/100L.

These values are program choices, not a claim that products with the same liter value share the same external shape or installation system.

Read the dimension label before comparing.

PP Square publishes verified outer dimensions. Aluminum Basic states the applicable dimension type for each capacity. Stainless Steel publishes verified inner dimensions for 45L and 60L. PP Round, ABS Travel and Stainless Steel 100L intentionally omit unverified dimensions.

Outer dimensions help with the product envelope and packing discussion.
Inner dimensions help describe usable internal space but do not by themselves prove item fit.
When dimensions are omitted, request the exact measurement drawing for the selected configuration.

Confirm fit at project level.

Before ordering, provide the intended motorcycle or rack context and the items the buyer expects to carry. Ask the supplier to confirm the selected case, mounting parts and applicable measurement source rather than relying only on a liter label.

MT BOX / Verified catalog reference

Verified catalog reference

This library separates confirmed MT BOX product facts from questions that require project-level confirmation.

Product program	Published capacities	Published evidence scope
Aluminum Alloy	46L / 56L / 68L	Verified dimensions for Basic only; added styles retain explicit image limits.
PP Square	36L / 45L / 55L / 65L / 70L	Verified outer dimensions and three lock-matched product references.
PP Round	33L / 34L / 40L / 42L	PP material, round shape and capacity; dimensions and locks are not inferred.
ABS Travel Box	43L	43L with separate Mechanical and Fingerprint Lock references.
Stainless Steel	45L / 60L / 100L	Verified inner dimensions for 45L/60L; separate 100L reference.

MT BOX / Q&A

Procurement questions

Does the same liter capacity mean the same physical size?

No. Shape, construction and dimension type can differ, so buyers should compare the exact program and verified measurements.

Does capacity prove that a helmet will fit?

No. Capacity alone is not a fit guarantee. Request the applicable inner measurements and confirm the intended item and configuration.

What should a buyer request when dimensions are not published?

Request the exact inner or outer measurement source for the selected capacity and configuration, together with mounting information relevant to the project.

MT BOX / B2B

This library separates confirmed MT BOX product facts from questions that require project-level confirmation.

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