古賀修三️自転車Youtuber️じてんしゃ学園

Koga Shuzo’s Jitensha Gakuen is a Japanese cycling information site and bicycle service based in Koga City, Ibaraki Prefecture. Created by Koga Shuzo, a cycling-focused YouTuber, it helps riders make informed choices, maintain their bikes, and understand common repairs and upgrades. The site publishes practical articles and reviews covering road bikes, cross bikes, folding bicycles, electric-assist models, components, and general bicycle care. Topics include choosing a bike, replacing cables, fixing brake problems, removing rust, and selecting parts for customizations.

Alongside its educational content, the business offers bicycle sales and related services. Customers can view refurbished used bicycles for sale, request bicycle repair or sales assistance, and seek advice when purchasing a bike. The site also accepts bicycles and bicycle parts for purchase, including sports bikes and components; some items may be accepted in non-working condition. Free assembly support is available, and readers can submit bicycle questions through its Q&A feature. Koga Shuzo also shares product recommendations, price comparisons, and cycling updates through the website and other online channels.