18211898 MUFFLER 304 KTM 125 SX

Name: PRO CIRCUIT MUFFLER 304 KTM 125 SX
Brand: PRO CIRCUIT
SKU: 18211898
Price: 169.47 GBP
Availability: InStock

Fits 5 bikes

RRP £199.38 Save 15%

£169.47

incl. VAT

In stock — delivered in 6–10 working days

Dispatched in 2–3 working days · delivered in 6–10.

Part #: 18211898

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§ 02 / About this part

What it is

The PRO CIRCUIT MUFFLER 304 KTM 125 SX, slip-ons. Stocked by Iron Offroad, the UK MX hard parts specialist.

This silencer is engineered to broaden the powerband of your 125 SX. The design features a slightly longer canister than the shorty version, providing better top-end over-rev for fast tracks. It uses a stainless steel stinger and an aluminium body for a lightweight, durable finish. The unit bolts directly to your subframe and expansion chamber. Maintaining the internal packing is critical for small-capacity 2-strokes to ensure consistent back pressure. Inspect the silencer after every few hours of track time. This is a proven performance upgrade for competitive racing.

§ 03 / Specs

The numbers

Brand: PRO CIRCUIT
Part number: 18211898
Category: Slip-Ons
Weight: 1.07 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 5 models · 5 year-bands

Gas Gas 1 model

MC 125 2021–2023

Husqvarna 2 models

KTM 2 models

* 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

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.