Preventing Uneven Stretching– tag –

[Maintenance Log] Is the SR400’s 428 chain unreliable? The durability and peace of mind you get from a “520 conversion”

We're continuing with the SR400 *the work is finished, but...The SR400 has a surprisingly small 428-size drive chain.Sure, it's a compatible chain, but it's ...

27 August 2026
Everyday Events (Work Log)

Request

Our shop takes time and care with every job. We have many customers with reservations, and we often have to ask people to wait for extended periods or decline work depending on the nature of the request. We appreciate your understanding as we are a small shop.
Important Notice

Please refrain from calling to make work reservations, submitting urgent requests, or asking for consultations by phone.
Please use the reservation form instead.
Our shop operates on a complete reservation system with bookings made at least one month in advance.
Email responses are handled around 9 AM, 1 PM, and 6 PM on business days.
We only accept fabrication and customization work that is a continuation of maintenance services. We do not accept requests for customization or fabrication work alone.
We do not accept work on motorcycles with 250cc or less displacement, foreign bikes, or scooters.

The content and prices in blog articles are as of their publication date. Please understand that the situation may have changed since then. We do not guarantee the accuracy or correctness of the article content.

Preventing Uneven Stretching– tag –

[Maintenance Log] Is the SR400’s 428 chain unreliable? The durability and peace of mind you get from a “520 conversion”