Pilo D1373 Derailleur Hanger for Java

The Pilo D1373 is a frame-specific replacement rear derailleur hanger for compatible Java bicycles. It is intended for riders and workshops replacing a bent, damaged or missing original hanger while retaining the frame's existing rear derailleur mounting arrangement. Pilo currently identifies Java as the compatible bicycle brand for the D1373 but does not publish individual Java model names on the product page, so the exact hanger shape should be confirmed against the original component before purchase.

Restores Derailleur Mounting. The hanger forms the connection between the rear derailleur and the bicycle frame, making correct fit important before derailleur alignment and indexing are carried out. Pilo manufactures the D1373 using CNC machining, providing a dedicated replacement rather than a universal hanger. This makes it useful for workshop repairs as well as for riders who want to keep a compatible spare available for travel or future replacement.

Confirm your Java Frame. Pilo lists compatibility only at brand level and does not identify specific Java models or production years for the D1373. Do not assume that every Java bicycle uses this hanger simply because the brand matches. Before installation, compare the mounting profile and attachment points with the hanger currently fitted to the bicycle. If the original hanger cannot be identified confidently, verify the frame's hanger requirement before fitting the replacement and carrying out final derailleur adjustment.