YD100/LD100 Piston Kit 50mm x 40mm for 2 Stroke YD100 LD100 Engine Gas Motorized Bicycle 79CC/80CC/100CC

Every one of those heads and pistons is a CDH product.The longest I've had one of these last is a week or soThey explode and bits of aluminum chunks blow out the compression, cave in the side exhaust pipes inside the head, all kinds of crapThe last two DIDNT EVEN WORK. BOTH refused to make up any compression.Before you say anythingYES I mix the oil properlyYES I make sure nothing falls inside to get chewed up by the pistonNO I Don't use ANY additional stuff, ONLY what comes with the kitWhy are they such garbage?? I've spent a lot on this stuff and yur product quality is disturbing

My husband had to modify this to make it work.

Man this thing ripps

Good product been riding since i got it only thing i brokr my tire lol

The clips break off and misses up motor I've been though two motors before I read it . but I loved the piston

Very good people nice product fast getting to me all around top of the line

Right size and good quality

Very good items choose because of right fit for more