FMF INSERT 4.1 RCT -1.5DB

§ 01 / Part

18611666 INSERT 4.1 RCT -1.5DB

RRP £39.85 Save 15%
£33.87

incl. VAT

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Part #: 18611666

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FMF

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§ 02 / About this part

What it is

The FMF INSERT 4.1 RCT -1.5DB, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This internal component fits into the muffler exit to drop the sound output. It is essential for meeting strict noise regulations at UK tracks or enduro events. The insert alters the flow of exhaust gases without strangling engine performance. You will need to remove the end cap to seat this correctly. It is a direct fit for your exhaust system. Keep this in your spares box for sound checks. It helps maintain back pressure while keeping the bike within competition limits.

§ 03 / Specs

The numbers

Brand
FMF
Part number
18611666
Weight
0.14 kg
VAT
20%

§ 05 / About Iron Offroad

Iron Offroad

Iron Offroad is the off-road sibling of Iron City and Iron Stable — a UK shop for motocross, enduro, and trail-bike hard parts. Every fitment lives on the site, listed against KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is the data: fully enriched fitment so you find the right part for your bike quickly and get it fitted accurately. Brands you'd find on a paddock workbench — pads, sprockets, plastics, fork seals, cables, gaskets, bars, the things that actually wear out. Road-bike kit, scooter parts, and quad gear sit elsewhere; dirt and e-moto only. We operate from our storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. The business has a rich motorcycle history across multiple moto brands — the photos show where we came from — and recently pivoted into hard parts and online retail.
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Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement