Custom House Stinky is a small motorcycle custom shop in Gotemba, Japan, specializing in Yamaha SR motorcycles. Since opening in 1983, the owner-operated business has championed a long-lasting relationship with the SR, helping customers create bikes that reflect their individual ideas and preferences. Stinky produces handmade parts in small quantities, with an emphasis on craftsmanship and designs that preserve the motorcycle’s distinctive form.

Its original products include double, semi-double, and single seats, designed to balance appearance, comfort, and ease of reaching the ground. The shop also makes handcrafted aluminum fuel tanks, including options for SR fuel-injected models, and offers other parts such as cast top bridges, birdcage-style headlight stays, handle locks, and classic-style stabilizers. Stinky carries parts from other manufacturers for various motorcycles as well, and welcomes inquiries about fitment and custom work.

The shop’s gallery showcases SR builds and other projects, illustrating its range of custom styles. Visitors can view modified motorcycles and learn about or try the original seats.