RedCcap 54mm Bore Piston & Ring Set with Head Gaskets Kit for 125cc Pit Dirt Bike 125cc SSR Baja Roketa Apollo Bms Nst Taotao with the Horizontal Styled Engine ATV Dirt Bike Go Kart

Direct replacement for TB Competition head and 54mm Big Bore Kit for a TRX 90

Half of the Gaskets were made just wrong enough that they won’t go on without tearing.

Fit my engine I have a boom Vader 125cc

Piston and rings fit fine, but the gaskets weren't even close. I had to modify them slightly just to get the top end put back together. I have at least one leak, maybe more.

Very nice set and great price!

Good item

Good kit piston was a 54 mm but the gasket kit they sent with it was for the 52.5 mm so couldn't use any of it othere than the piston

This cheap rebuild kit was exactly what I needed for my Chinese 125cc pit bike. I have been ripping it for years now and recently it has started smoking quite a bit and I coil only assume the cheap Chinese piston rings were finally wore out as they do. Now experience may vary but replace the entire top end on the horizontal pitbike engine is extremely simple. Couple bolts, take the cam gear off, and the entire top end is off in less than 10 min. The parts in this kit looked identical to the parts I replaced and fit flawlessly as I expected them to. Another 10 minute re-assembly and my bike was running like new with no smoke or anything. The value of this kit is great. Around $20 to revitalize your used up engine is really hard to beat and I’d recommend this to anyone with an older 125 that has been used and abused.