Sinter Model 022 Formula, Cura 4

The Formula Cura 4 is the Italian brand's four-piston MTB caliper; Formula's competitive response to Magura MT5 / MT7 and SRAM Code in the enduro and gravity-light segment. The Sinter Model 022 is the organic-compound pad that fits the Cura 4 specifically. (The two-piston Cura, the Cura 4's lighter sibling, takes a different pad shape and is not covered by the Model 022.)

What's in the kit

One caliper's worth of pads (2 pads, left and right) for the Formula Cura 4 pocket. The kit ships with the spring, pin, and bedding-in instructions. Order two kits if you're replacing front and rear pads on the same service.

Fits

Formula Cura 4 pad shape:

• Formula Cura 4 (the four-piston Cura caliper)

The Cura 4 was introduced in 2018 and remains in current production. Formula's two-piston Cura uses a different pad pocket and is not covered by Model 022. If your bike runs the Cura (without the 4), check Formula's pad-shape index for the correct Sinter fitment.

Compound and feel

Formula's Cura 4 caliper engineering emphasizes lever-feel control over raw stopping torque; the Italian brand's design philosophy is closer to “Magura precision than SRAM brute force.” Sinter's organic ceramic-loaded compound matches that philosophy. The resin matrix bites cleanly off the lever, modulates predictably under sustained pressure, and runs quiet in dry conditions. The Cura 4 customer who chose the brake for its lever feel will hear that feel preserved through the Sinter pad swap; sintered metal pads on a Cura 4 caliper would compromise the very thing the Cura 4 was bought for.

Specs

• Compound: organic (ceramic-loaded, resin-bound)
• Backing plate: steel
• Pad shape: Formula Cura 4
• Pads per package: 2 (one caliper)
• Includes spring and pin

Includes: 2 pads (left and right), spring, pin, bedding-in instructions.

Sinter's organic compound from Ljubljana

Sinter has been making friction materials in Ljubljana since 1969, and developed the first disc brake pads in the former Yugoslavia in 1972. The Slovenian plant supplies organic-compound pads at scale to European motorcycle OEMs and to the bicycle aftermarket. Unior has been forging hand tools in Zreče since 1919, and is the official technical partner of multiple World Tour and downhill teams. Euro Toolworks is the North American importer for both Slovenian brands. The Cura 4 is one of the Italian brake brand's lighter-volume calipers in the US market, and the Model 022 lands alongside the higher-volume SRAM and Shimano pad shapes because Formula's customer is a particular kind of rider; the one who chose the brake for lever feel and notices when the lever feel changes.

Pro tip from our mechanics

Formula Cura 4 calipers use a slightly tighter pad-to-piston clearance than the equivalent SRAM or Magura four-piston caliper, and a fresh pad install is sensitive to piston-spread depth. Before sliding the new Sinter pads in, work each of the four pistons individually back to the same retracted depth with a piston-spreader; uneven piston retraction on the Cura 4 produces audible scrape at low brake pressure that the Sinter pad cannot fix on its own.

Which compound suits your riding and which Sinter model fits your brake is covered in How to choose Sinter brake pads →.