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Installation & Safety Notice – Herald “Vintage” EU-Homologated Stainless Megaphone Muffler
Installation & Safety Notice — Homologated Megaphone Muffler
39 mm slip-fit • Left or Right mount • Stainless steel with support strap
This E-marked silencer (Herald Café Racer 400 type) is certified to UNECE Regulation 92 for motorcycles up to 650 cm³. The E-mark applies only when the dB-killer insert is installed. Follow the guidelines below before riding on public roads.
| Region | Road-use Status | Your Checklist |
|---|---|---|
| EU / UK | E-marked (R92) — road legal with insert fitted | Keep the welded Ee 11 92R-01 xxxx stamp visible. Do not remove dB-killer on public roads. Maintain overall noise ≤ OEM card value + 1 dB(A). |
| USA | Not EPA-stamped ➔ closed-course / show use | Many states require EPA mark; label “FOR COMPETITION USE ONLY” if dB-killer removed. Local ordinances (NYC, CA) fine > 80 dB(A) @ 50 ft. |
| Australia / NZ | ADR 83/00 stationary noise | Bike must stay ≤ value on ADR label + 5 dB. Keep insert installed; carry E-mark certificate for inspection. |
Universal Fitting Instructions
- Slip fit on Ø 39 mm header; for other diameters, use a stepped adaptor sleeve (not supplied).
- Position on left or right; rotate so logo faces outward.
- Install stainless support strap around can — bolt to frame tab with supplied M8 × 30 bolt, nyloc nut & spacer; torque 25 N·m.
- Tighten clamp to 45 N·m; check for 10 mm clearance to swing-arm & tyre at full travel.
- Re-torque after first heat-cycle; inspect fixing every 1 000 km.
Maintenance & Sound Control
- Retain dB-killer and fibre packing to maintain homologation.
- Clean welds with stainless polish; avoid acidic cleaners.
- Repack glass-wool every 10 000 km for consistent tone.
⚠️ Removing the insert or exceeding legal noise levels can lead to fines, MOT/ITV failure, or registration cancellation. Install and use at your own risk.
⚠️ California Proposition 65: This product can expose you to chemicals including nickel and hexavalent chromium. More information: P65Warnings.ca.gov.