About Nomu Lab Diary

The Original Blog

のむラボ日記 (Nomu Lab Diary) is a Japanese bicycle workshop blog that has been running since 2007. Written by a skilled bicycle craftsman and wheel builder based in Japan, it documents nearly two decades of hands-on work in the world of cycling.

The blog is beloved in Japan's cycling community for its meticulous, practitioner-level approach to bicycle mechanics — particularly custom wheel building, spoke tension analysis, and component overhaul. With more than 4,900 posts, it represents one of the most comprehensive bicycle workshop diaries available online.

Topics Covered

• Wheel building — lacing patterns, spoke selection, tension measurement, truing
• Spoke length calculation — formulas, ERD measurement, hub flange geometry
• Component overhaul — Shimano groupsets, bearings, bottom brackets, headsets
• Hub & rim selection — DT Swiss, Sapim, Pillar, Kinlin, and more
• Tire fitting & setup — tubeless, clincher, tubular
• Road cycling experiences — rides, bike reviews, personal reflections

Wheel Building Spoke Tension DT Swiss Shimano Road Cycling Bike Maintenance Hub & Rim Component Overhaul

This Translation

This site — nomulabworkshop.com — makes Nomu Lab's wealth of bicycle knowledge accessible to English-speaking and Traditional Chinese-speaking cyclists worldwide. All articles have been carefully translated to preserve the technical accuracy and workshop diary tone of the original.

We believe that Japanese cycling craftsmanship deserves a global audience. Whether you are a competitive road cyclist, a wheel-building hobbyist, or a bicycle mechanic, we hope you find practical value in these posts.

Original Source

The original Japanese blog can be found at pass13.blog.fc2.com. All content is based on the original author's work. This site is a translation project created to share Japanese bicycle workshop expertise with the international cycling community.