Works fantastic in my matrixfire masterkey
These are a great pair of flywheels. I rewired my Stryfe with the Meishel 2.0 130 2s motors, and with these flywheels, it hits hard! It is worth noting that I had to grind significant portions of the original flywheel cage out for them to fit, as well as popping the front of the blaster slightly. Other than that, these are wonderful flywheels!
Not sure of the specific issues with the wheels other reviewers have left, but these wheels are awesome. U will need a shell that has good clearance and no shell rubbing. 1 reviewer said the wheel melted. Sounds like a motor overhearing issue. Regardless, most of the issues sound like the wheels were rubbing on something. These wheels can produce daybreak type performance at a little over half the cost. I prefer daybreaks, but sometimes I also prefer $9 flywheels that spank! Pair these with FRV or krakens or something with some torque.
Did not fit on my Mieshel 2.0's, I could of gotten faulty ones, but I would say you should probably get higher quality ones. It may also just be my motors. Overall, I had a bad experience, and would not recommend, but you could try it if you need a cheap wheel.
I tried these with a 42.5 mm cage. DO NOT USE WITH 42.5 CAGE. USE 43 mm CAGE. These are too big to have darts go through. I recommend the 43 mm.