
§ 01 / Part
Pro Circuit 304 Factory Sound Silencer 18210128 for Honda CR500R 1989–1990
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§ 02 / About this part
What it is
Pro Circuit 304 Factory Sound silencer to fit Honda CR500R (1989–1990).
This standard-length silencer provides a broad power increase across the entire rev range. It replaces the restrictive stock unit to improve top-end over-rev while keeping noise levels within track limits. The longer canister offers more internal volume for packing, which helps maintain consistent back-pressure. It is a direct fit for your subframe mounts and works best with a matched expansion chamber. Inspect the rivets and seams for leaks after heavy use. Regular repacking is required to prevent the canister from discolouring. It is a robust choice for all-round MX use.
§ 03 / Specs
The numbers
- Brand
- PRO CIRCUIT
- Part number
- 18210128
- Category
- Slip-Ons
- Weight
- 1.20 kg
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 1 model · 1 year-band
* Fitment data is provided as a guide. Verify compatibility against the bike's owner's manual or service handbook before ordering. Iron Offroad accepts no liability for incorrect application. Full terms and conditions apply.
§ 05 / About Iron Offroad
Iron Offroad
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