A missing key or worn helmet holder can make a small hardware purchase surprisingly specific. For the 1978 Honda CB125S5, compare the replacement lock reference and the mounting point already on the motorcycle, then decide how you want to handle its keys.
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Plan a helmet-lock replacement around the existing mount
The featured helmet holder replaces reference 50710-086-007 and comes with keys. Its CB125S application includes 1978; a changed bracket or a requirement for matching keys deserves a separate check before purchase.
Use the old helmet holder, a parts record or reference 50710-086-007 to identify the replacement you need. The supplied keys make the lock a useful option when its own key is missing. Check the mounting point if the original holder is no longer available.
Check a one-key requirement early
Keeping one key for the motorcycle may matter more than simply replacing the holder. This lock comes with keys, but matching an existing key is not specified. Confirm that requirement before ordering if a separate helmet-lock key would be inconvenient.
Common ordering questions
Can I keep the same key for the ignition and helmet holder?
Key matching is not specified for this replacement. It comes with keys of its own. If one-key operation is essential, confirm the keying requirement before choosing the lock rather than assuming the motorcycle key will work.
What should I check if the original bracket has been changed?
Compare the replacement holder with the mounting point actually fitted. The application identifies the motorcycle, but no bracket dimensions are supplied; get the changed mount checked before committing to the replacement.
Is a replacement reference proof of genuine Honda manufacture?
No. The supported claim is that the holder replaces reference 50710-086-007. If you require a genuine Honda part, confirm the manufacturer before ordering; an equivalent reference does not establish who made the replacement.
Not sure which part you need?
Send your model and year, plus photos of your existing part and any changes to the original setup.