D.I.D 25H86LE BS25H Cam Chain for 1972–1978 Honda ATC90

The D.I.D 25H86LE cam chain is a dependable replacement component designed for select Honda ATC90 engines from 1972 through 1978. Also identified as the BS25H 86-link cam chain, this part supports accurate camshaft timing and helps maintain reliable operation in the engine’s valve-train system.

Manufactured by D.I.D, the chain is designed for fitment on 1972, 1973, 1974, 1975, 1976, 1977, and 1978 Honda ATC90 models. Its application-specific construction makes it a practical choice for engine repairs, restoration projects, and scheduled maintenance when the original cam chain is worn, stretched, or due for replacement. Verify the model year and engine configuration before installation.

This product is supplied under the manufacturer part number 25H86LE and vendor part number 25H86LE. It is intended as a direct replacement-style cam chain for the listed Honda ATC90 applications. Professional installation and confirmation of correct timing marks are recommended to help ensure proper engine performance and service life.

Features:

• Application: Cam chain for select Honda ATC90 engines
• Fitment: 1972–1978 Honda ATC90
• Brand: D.I.D
• Manufacturer part number: 25H86LE
• Vendor part number: 25H86LE
• Model designation: BS25H 86-link cam chain
• Function: Supports accurate camshaft and valve-train timing
• Use: Replacement, repair, restoration, and maintenance applications