Conversion Kit

The conversion kit itself works pretty well. I’ve been able to produce good shots with very fresh beans and proper tamping. Great taste and nice crema. Would give 5 stars but you guys need to ditch OnTrac. Literally the worst shipping company I’ve ever dealt with. Among other issues with OnTrac, they lied about needing a gate access code, were hard to deal with, and the driver threw the package 20 feet across my porch. Use a real shipping company like UPS or FedEx. I’m not likely to buy more products from you simply because of the shipping company being complete garbage.

I ordered the conversion kit because i didn't think i was getting enough pressure (even with super finely grinded beans!) in my pulls. I had read reviews that said the calcium deposits made taking the old cylinder out difficult but for me, it was very easy. I mention that because when i installed the new cylinder, i found i was getting only the same amount of pressure or maybe less. Is there a way i can trade in the main body of the rok GC for a new one? Any other suggestions to get more pressure? There's very little resistance when i pull shots.

To really complete this conversion, you should buy the high pressure portafilter basket also to see best results

The jury was out in the ROC. I had inconsistent results that lead to me shelving it for a while. I heard about the conversion kit and decided to give it a try. I’m glad I did. Shots are more consistent and I’m using it everyday. Glad I didn’t need to buy an all new unit. Well done ROC.

The Conversion kit, main body bore is not smooth and leaks air or prone to create excessive wear on silicone oring.