Metal Steel M1 Pinion Gear Sets 26T 27T 28T 29T 30T 5mm Shaft Motor Gears with Hex Key for 1/10 RC Brushless Brush Motor | Metal Steel,With Hex Key for Arrma HSP HPI AXIAL Tamiya Losi 1/10 RC Brushless Brush Motor

Good fit, good quality materhaven't had a problem with them yet.They're worth the money

I am converting a Thunder Tiger Mirage Pro from nitro to brushless, and these gears were PERFECT! The quality is exceptional, the meshing is flawless and they are very robust.

all works

These will last longer than OEM gears. That said if you tend to full throttle from a dead stop, do Ollies or are plain reckless when it comes to landing under wide open throttle, they will eventually strip and wear out. I’m the latter and I can still get 3-4 sets of 4’s lipos out of my XRT before I notice slippage/gear grind. But hey, getting a chance to tear down and fix your RC is part of the fun right?

Gears look nice and strong. Just because they did not fit my RC doesn’t mean they are bad.

You will get a package that says 1/4" shaft size (6.25mm) and feel sad. Ignore it! The pinions inside are 5mm, as you ordered. Seem fine so far.

Very loud gears

Each pinion comes with his own grub screw but they are not installed so when you open up the package be careful not to lose them