Comandante Red Clix RX35 Upgrade Kit for C40

A small upgrade that makes a big difference

The Comandante Red Clix RX35 upgrade is a small modification that noticeably improves the precision of the C40 grinder. It replaces the standard axle with a redesigned adjustment system that doubles the number of grind settings.

For many home baristas, this upgrade quickly becomes essential once they start dialing in espresso more precisely.

Finer adjustments for espresso dialing

With the standard Comandante axle, each click changes the grind size by a relatively large step. The Red Clix system halves this adjustment size, giving you much finer control over the grind.

This makes it much easier to dial in espresso shots, especially with lighter roasted specialty coffees where small adjustments can significantly affect extraction time and flavor.

Same build quality, same tactile feel

Like all Comandante components, the Red Clix parts feel extremely well made. The kit includes precision-machined stainless steel components that fit perfectly into the C40 grinder.

Once installed, the grinder keeps its familiar tactile click feedback. The only difference is that each click now allows much more precise adjustments.

Ideal for espresso-focused home baristas

If you primarily use your Comandante for espresso brewing, the Red Clix upgrade is one of the most useful accessories available.

It turns the C40 into a much more precise espresso grinder while still keeping the versatility to switch back to filter coffee when needed.