VERTEX ENGINE BOTTOM END KAWASAKI REBUILD KIT

§ 01 / Part

09031310 ENGINE BOTTOM END KAWASAKI REBUILD KIT

Fits 2 bikes
RRP £704.54 Save 20%
£563.63

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09031310

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VERTEX

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§ 02 / About this part

What it is

The VERTEX ENGINE BOTTOM END KAWASAKI REBUILD KIT, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

Vertex's bottom-end kit for the KX 85, covering both the 17/14 small-wheel and 19/16 big-wheel versions. One box for a full case-split: crankshaft, main bearings and the gasket set to close it all back up. The trigger is vertical play at the small end or a rumble from the mains at idle. Small-bore two-strokes rev hard and the KX85 gets raced hard, so bottom ends wear faster than owners expect. Sourcing crank, mains and seals separately invites mismatched tolerances. This kit removes that problem.

§ 03 / Specs

The numbers

Brand
VERTEX
Part number
09031310
Weight
3.65 kg
VAT
20%

// Fitment

Will it fit your bike?

Fits 2 models · 2 year-bands

* 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.
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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