DC-F31 is specified as an MTB front disc hub with an ISO 6 holes design and a 100mm OLD (hub total length). This means the hub is intended for front wheel builds where the disc rotor interface follows an ISO 6-bolt / 6-hole pattern, and the hub spacing requirement is 100mm OLD as provided. In addition to MTB front usage, the provided application statement also notes that DC-F31 can be used for e-bike front applications when the motor hub is located at the rear (motor rear hub).

For assembly, the provided installation guidance states that you will need a through axle with OD 15mm to lock into the fork. When preparing a wheel build or a product specification sheet, the combination of ISO 6 holes, 100mm OLD, and through axle OD 15mm are the key compatibility points that should be checked against the fork and disc brake setup. This product page intentionally keeps the specification aligned with the supplied text to avoid introducing assumptions about materials, bearing models, spoke counts, flange geometry, or other parameters not included in the provided data.

From a SKU planning perspective, DC-F31 can be positioned as a clear, front-disc hub option within an MTB lineup, and it can also be used in e-bike configurations that use a rear motor hub while keeping a standard front hub. If you are building multiple hub tiers under the same category, the related product suggestions provided for DC-F31 include DC-F33 (disc lightening cut design, described as an upgraded option) and CL-F33 (shimano center lock disc design). These references can be used to guide internal linking and related-product modules on the website.

To strengthen SEO without changing product facts, it is recommended to consistently use the exact model code (DC-F31) and the key spec phrases (ISO 6 holes, 100mm OLD, through axle OD 15mm) in headings, alt text, and internal links. All numeric values and interface terms on this page match the provided product information.

Technical Specifications

Key Features & Benefits

• MTB front disc hub with ISO 6 holes design (as provided).
• 100mm OLD hub total length (as provided).
• Assembly requires through axle OD 15mm to lock into the fork (as provided).
• Also applicable for e-bike front with motor rear hub (as provided).

Applications

• MTB front disc ISO 6 holes hub with 100mm OLD.
• Also for e-bike front with motor rear hub.

Installation & Usage Instructions

• To assemble this front wheel hub into the bike, you will need through axle OD 15mm to lock into the fork.
• OLD is 100mm for hub in total length.

Recommended Products

• DC-F33 with disc lightening cut design which is upgraded option.
• CL-F33 with shimano center lock disc design.