Family

Do motorbike modifications affect insurance?

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In short: Yes — exhaust, fairing and performance mods must be declared. Undeclared modifications can void claims.

Last reviewed: 5 July 2026

Reviewed by Kaiser Khan

Classic bikes may need agreed valuations.

Revert to standard before quoting if mods are temporary.

Insurers may refuse heavily modified machines.

See motorbike insurance guide.

Primary source: abi.org.uk/motor

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