How to insure a custom built motorcycle in India

What insurers actually want from you

If you are building a custom Royal Enfield, Classic 350 chopper or a resurrected Yamaha RD350 with a shop like Rajputana Customs, Eimor Customs or Bulleteer Customs, your existing two wheeler insurance policy does not automatically cover the finished bike. HDFC Ergo's own guidance for modified and custom built bikes says you need to disclose every change at the time of policy issuance or renewal, and keep a paper trail ready: the original invoice of the motorcycle, bills for every modification done, recent photographs of the bike, and where the change is structural or to the engine, RTO approval for it. SBI General's guidance says the same thing in almost identical terms: undisclosed modifications and changes without RTO approval are listed as exclusions, meaning the insurer can simply refuse to pay.

This matters more for a custom build than for a bolt on accessory. A full custom job from a recognised builder changes the tank, subframe, seat, exhaust and sometimes the wheels and suspension. Each of those is a modification an insurer can ask about after an accident or a theft, and each one needs its own bill.

Why RTO approval is not optional paperwork

Both insurers are explicit that approval from the Regional Transport Office is a condition of cover, not a formality. HDFC Ergo's guide lists RTO approval for structural or performance changes as one of the core documents an insurer will ask for alongside modification bills and photographs. SBI General goes further and names "modifications not approved by the Regional Transport Office" as a straight exclusion from the policy. In practice this means a custom build that changes the frame, engine or exhaust needs to go back on your registration certificate through the RTO before an insurer will treat it as legitimate. A beautifully built bike with no RTO endorsement is, to an insurer, an unauthorised vehicle.

What the sums actually look like

Insurers do not punish a custom build by refusing cover outright. They recalculate what the bike is worth. SBI General's own example: a motorcycle valued at ₹1,00,000 with ₹20,000 worth of declared modifications gets its Insured Declared Value revised up to ₹1,20,000. That higher IDV is what you get paid out against in a total loss or theft claim, and it is also why your premium rises a little once modifications are declared. Cosmetic work such as paint and seats moves the premium only slightly. Engine and performance changes, the kind a serious custom build often includes, move it more because the insurer now carries more risk.

A short checklist before you commission a build

Before you hand your bike to a builder, ask what paperwork you will get back with it. A paint and parts invoice for every stage of the job, a photograph of the bike before work starts, and confirmation of whether any change needs an RTO endorsement. Take that paperwork to your insurer before the policy comes up for renewal, not after a claim. Comprehensive cover with zero depreciation is worth paying for on a custom build, since third party only policies never touch your own bike or its custom parts anyway. None of this is unique to Indian riders, but it is stricter here because both the Motor Vehicles Act and insurers treat an unapproved structural change the same way: as a reason to walk away from a claim.

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