Comandante RX35 Axle for Red Clix
The point where "almost right" becomes a perfect espresso often lies in a tiny turn — and that's exactly where the finer thread of this axle comes in.
The RX35 axle, made of stainless steel, is the heart of the Red-Clix system: It replaces the standard axle with a finer thread, allowing the grind to be adjusted in smaller increments. For espresso, where a few clicks decide the extraction, this makes a noticeable difference.
What makes this axle special
Finer adjustment means you hit the sweet spot between too fast and too slow more precisely. Made of stainless steel, the axle runs smoothly and remains dimensionally stable for years. It's the axle found in the Red Clix — as a spare part or as a basis if you convert your C40 grinder for fine adjustment.
Nobody needs the last click of precision — but those who love espresso from a hand grinder often want it. Our opinion is one of many.
At a glance
| Component |
Central axle with fine thread (RX35 / Red Clix) |
| Material |
Stainless steel |
| Function |
finer grind adjustment in smaller increments |
| Compatibility |
Comandante C40 (MK3 & MK4) |
| Origin |
manufactured in Germany |
Who it's for
For anyone with a Comandante C40 who wants to adjust more finely and repeatably for espresso — as a spare part for an existing Red-Clix setup or as an axle for conversion.
Goes with
The Red-Clix set and other parts can be found in Comandante Accessories and Spare Parts. The grinders — from the affordable C40 to the larger C60 Baracuda — are under Hand Grinders, and more about grinding under Coffee Grinders.
Frequently Asked Questions
What does the RX35 axle do?
It has a finer thread than the standard axle. This allows you to adjust the grind in smaller increments — especially helpful for espresso.
Does it fit the C60 Baracuda?
No. The RX35 axle is designed for the C40 (MK3 and MK4). The C60 uses its own system.
Is this the complete Red-Clix conversion?
This is the axle itself. You can find the corresponding fine adjustment ring and other parts separately from us.
Can I see this item in Bern or Zurich?
Yes, in our showrooms in Bern (Gerberngasse 44) and Zurich (Hagenholzstrasse 50b). You can buy online anytime, with delivery in 2–4 business days to Switzerland and Liechtenstein.
From our coffee roastery: Fine adjustment is most worthwhile with beans that have a lot to offer. For dense, chocolatey espresso, most people opt for Cozy Chocolate or Nutty Delight. If you like it nutty and without acidity, choose Very Nutty; for fruity discoveries, Wild Peach. This is our recommendation, one of many.
