09310015 CYLINDER KIT 400 cc 90mm STANDARD BORE

Name: ATHENA CYLINDER KIT 400 cc 90mm STANDARD BORE
Brand: ATHENA
SKU: 09310015
Price: 413.95 GBP
Availability: InStock

Fits 8 bikes

£487.00 Save 15%

£413.95

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09310015

Authorised stockist

ATHENA

14-day returns

Easy & hassle-free

Secure checkout

256-bit encryption

§ 02 / About this part

What it is

The ATHENA CYLINDER KIT 400 cc 90mm STANDARD BORE, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This kit replaces the entire top-end assembly on your bike. It includes the cylinder, piston, rings, and gaskets for a complete engine refresh. Use this when your bore is worn or during a scheduled service interval. The Nikasil lining provides a hard-wearing surface for race conditions. It maintains the standard bore size while offering improved cooling efficiency over stock. Check your squish clearance during assembly to ensure optimal combustion. This is a direct bolt-on solution for restoring factory compression and power. Clean all mating surfaces thoroughly before fitting the new gaskets.

§ 03 / Specs

The numbers

Brand: ATHENA
Part number: 09310015
Weight: 2.32 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 8 models · 10 year-bands

Kawasaki 3 models

Suzuki 7 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 — this is a UK shop for motocross, enduro, and trail-bike hard parts. All fitments live on the site, and listed against MX models KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is in the data, fully enriched to assist with accurate fitting and finding the right part for your bike quickly and easily. 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 & e-moto only. We operate from our huge storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. We have a RICH motorcycle history with multiple moto brands the images showing where we came from and our history, the business recently pivoted into hard parts and online retail.