Brake Master Cylinder HammerHead 80T TrailMaster MID 6.000.305 XRS XRX Go Kart Brake Master Cylinder

Fit perfectly and works great! Great price and exactly what we were looking for. So far so good, and not leaking.

Fit the go cart perfectly. No modifications needed. Bled the system and we have brakes again!

Perfect replacement for the Black Widow 3171 go kart. Easy swap. Didn't not take long to bleed the brakes afterward.

Bench bled this Master Cylinder and mounted in on my kart, mounted it up and attached the brake lines and am now having a bit of an issue bleeding the whole system. I don't fault the M/C for this issue and it bench bled very easy. I would recommend this M/C

Cheap compared to anywhere else Installed on my kids go cart ,exact match to the old one Works as should

Look it's pretty simple. These cheap off-brand mini bikes or go-karts are made from cheap parts so on one hand it's great to have very affordable replacement parts but the quality reflects the price. This particular brake master cylinder was great to have for a cheap price. It fought me a little bit building pressure but after installing an additional o-ring, it got plenty of pressure

It's a good cylinder, but no plunger rods, when I asked about it, they said it comes with two different ones. It does not!

I guess this lasted about as long as the original one, maybe less. Easy to install and bleed but dang why do these have to leak so easy? I’ve had this installed for 2yrs? Probably has 4hrs on it since install but I was always wiping up brake fluid. I think it’s coming from between the cylinder and reservoir itself. I don’t recall if it’s an o-ring or rubber gasket but I’ll just fix it myself this time. Fool me once shame on you fool me twice shame on me.

well made nice long stroke

back in action for the gkids