AKILL® RACING x BOOST PISTON®: Nitrided HD Differential Cups for Losi 5ive-T, 30°N & Rovan

Would never buy any products from this company ever again! Paid for parts and never received them and never got refunded, worse customer service, Taylor rc sells much higher quality products and you actually get your product within 3 days highly recommended Taylor rc over this company!

Man, I am so glad Akill is finally back in stock. I remember waiting like 3 months last time they were out, and I eventually just gave up and canceled my order. What a mistake that was. As soon as I saw they were back, I jumped on it.

Shipping was insane this time—literally 5 days from clicking buy to my doorstep. I didn't want to risk them selling out again, so I grabbed 3 full sets to convert my entire fleet. These cups are practically permanent. I have a set from over a year ago on my main basher and they still look brand new with zero notching. If you see them in stock, just buy them before they are gone again.

Running the full Hobbywing Max4 and 70125 motor combo on 12S. The instant torque is brutal and usually snaps cups immediately. These Akill cups have taken 6 months of abuse with zero issues.

My 5ive-T is converted with a Castle 2028 motor. It destroys everything in the drivetrain. These cups are the only ones holding up to the 12S power. Titanium cups couldn't even last 5 mins lol.

If you run the 70125 motor you know it eats drivetrains for breakfast. The cogging torque is insane. These are the only hardened steel cups that survive my 12S bashing sessions.

Finally cups that can handle the torque of a 50cc. been running them since last year. still perfect

If you run big bore you know the pain of notched cups. these are the solution. titanium cups are a joke on 71cc engines dont bother

Most cups explode with my 63cc reed engine when i hit the throttle. these hold up. verified tough

Been ripping through tall grass every weekend with a 50cc. the load on the drivetrain is insane but cups are still smooth. flm would be dust by now

Running a fully ported 71cc engine. usually eats cups for breakfast. these akill cups survived a full year of heavy bashing with zero notches. crazy

Running a heavy 40lb truck with the 2028 motor. The load on these cups is massive. They handle the heat and friction perfectly. No wear at all.

Finally a drive cup that can keep up with the Max4 ESC. Zero notching after heavy trigger fingers on 12S. Don't waste money on FLM or Taylor for electric builds.

I do 100mph speed runs with a Castle 2028 setup. The start-up torque is violent. Checked the cups yesterday after a year of runs and they are still perfectly smooth. Best upgrade.

Hands down the strongest cups for 1/5 big bores. run them on all my custom builds 50cc and up

My 71 monster torque broke everything else. these are the only cups still standing after 12 months of abuse

Doing endless donuts in dry fields. lateral load usually snaps cups. these took it all day. akill steel is the real deal

My buddy bought the expensive titanium cups for his 50cc build and they notched in 3 tanks. my steel akill ones are a year old and look new. lol

You cannot run a Max4/70125 setup without these. Trust me. I broke stock and FLM cups in one day. These Akill ones are mandatory for 1/5 electric conversion.

Put these to the test with my Castle 2028 on 12S lipo. Did backflips and hard launches. Cups look brand new. The heat treatment on these is legit.

Titanium is for shelves. Hardened steel is for 63cc engines. learned that the hard way. Akill is the way

Testament to the quality. my 71cc usually destroys drivetrains in minutes. these cups took it like a champ for a whole year

Stop buying soft trash. if you have a 50cc or bigger you need these. period

Whether you run Castle or Hobbywing on 12S you need these. Titanium is too soft for electric torque. Steel is the only way. 1 year strong on my 2028 build.

The 70125 motor has so much torque it twists driveshafts. These cups are the strongest link in my car now. Verified verified verified.

Running a heavy 50cc truck sideways in the dirt. on and off throttle constantly. cups show no wear. reliable

I try to break parts. my 71cc tries to break parts doing donuts. we couldn't break these. 1 year strong

Unbelievable really. 5 gallons of fuel through a 50cc drifting in the dirt and zero wear on the cups. how?

They look good haven't used them yet.

It took 2 weeks and to days but got them they look great

Great replacement parts!!’

Building a losi 5t boost diff cups fit great looks great will see how they hold up when I get this build done and run it .but it might be awhile still getting parts and now it looks like you have some dog bones and other parts coming so will see. like akill