Vertex KTM ‘Group’ 250 2023-on TBI Top End Rebuild kit
This Vertex top end rebuild kit will suit KTM ‘Group’ 2023-on TBI 250cc Models. Images shows the gaskets you will receive. You will receive the correct parts for your model.
It includes:
- Vertex piston kit in the size of your choice (A or B). Piston kit includes rings, pin, circlips and a high quality cast piston.
- Top end gasket kit. Includes two gaskets to achieve the stock 0.60mm thickness base gasket, powervalve cover gaskets, copper washers and O rings… all O rings are the correct size and made from the correct material, unlike the cheaper aftermarket kits.
- little end bearing
- EZ clips free of charge for ease of piston installation.
Piston sizing: ideally you should measure your bore with a dial gauge to work out the correct piston sizing. If you cannot do this then a rough rule of thumb is use an A size under 100 hours of engine run time and use a B size over 100 hours of engine run time. Its ALWAYS better to have a bit too much clearance than not enough, so if in doubt use an A size.
Size | A, B |
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