A full engine set of four oversize piston ring sets for the GSX1000 Katana. If your pistons are already at 69.90mm and on size but the engine is smoking or down on compression, fresh rings are the cheaper route back to health — no need to buy complete piston kits.

- 4 x Piston Ring Sets — 69.90mm

- One set per cylinder — enough for the full four

- Pistons, pins and circlips are NOT included — rings only

- Part Number (O.E.M. reference): 12140-49250

- Size: +0.50mm oversize / 69.90mm

- Quantity: 4 ring sets (full engine set)

- Brand: IMD

- Country of Origin: Taiwan

- Condition: New

Suzuki GSX1000SZ / GSX1000S Katana.

This is the 1000 Katana set. It does NOT fit the GSX1100S Katana, which uses a 72.00mm bore and a different ring set. The two models look alike — check your engine before ordering.

This is a +0.50mm OVERSIZE ring set for a 69.90mm bore. Your pistons must already be 69.90mm to suit — it will not fit a standard bore engine. Please measure before ordering. Where possible, all parts are listed by part number (O.E.M.). Buyer is responsible for confirming the correct size and fitment for their engine.

Fitting should be carried out by a competent engineer. No liability can be accepted for parts incorrectly fitted, or for any failure of such parts after fitting.

- Dispatched from Chester, United Kingdom within 1 working day of cleared payment

- Royal Mail International Tracked

- 30-day returns accepted — buyer pays return postage

- Buyer is responsible for any import duties, taxes or customs charges in the destination country

Correct rings for the Katana are getting hard to find — ideal for a GSX1000 Katana engine rebuild or top-end refresh. Unsure of your size? Message us with your piston measurement before buying and we will help.