Aion Service

All-Mountain Versatility. Race-Day Ready. Adventure Approved. The Aion is built to handle everything from all-day alpine missions to enduro stages and bike park laps. This fork delivers stiffness, control, and adaptability in a sleek, trail-ripping package.

General Specs:

Produced with 34mm, 35mm, and 36mm stanchion tubes.
EQ air system (2023 and current 36mm forks).
Solo air/coil negative (pre-2023).

Recommended Parts

General Product Information

Forks

Spring side, top, plastic: 5Nm
Spring side, top, aluminum: 20Nm
Spring side, lower, allen screw (fix travel): 10Nm
Spring side, lower, alloy nut (fix travel): 8Nm
Spring side, lower, (travel adjust): 7Nm
Damping side, top, plastic: 5Nm
Damping side, top, aluminum: 20Nm
Damping side, lower, without adjuster: 10Nm
Damping side, lower, with adjuster: 7Nm
Crown clamps: 7Nm

Shocks

Air chamber: Hand tight.
Damper elements: See individual manuals.

General lubricants:

Grease: Conpanna (recommended), Buzzy's Slick Honey, Slickoleum.
Oil Rings: 20wt oil for 5-10 minutes.
Air chamber oil: Non-EQ forks use 3cc of 20wt oil. EQ forks use 1-2cc of 20wt oil.

Oil Bath:

Forks Pre-2025 do not use an oil bath.
2025 Durolux/Auron Oil bath: Damper side uses 20cc of 5wt oil. Air side uses 15cc of 20wt oil.

SR Suntour produces upwards of 150 different damper cartridges and finding the one for your fork may seem like a daunting task. Despite the number of cartridges we offer, finding the one you need is relatively easy:

Remove the stock cartridge from the fork (may require specific tools).
On the side of each cartridge is a cartridge number: FUNXXX-XX.
Search this cartridge on the North American web site and it should bring up the exact cartridge.
In the slim chance that the site does not provide your cartridge number, contact customer service for a potential alternate.

Aion Service

Recommended Parts

General Product Information

Forks

Spring side, top, plastic: 5Nm

Spring side, top, aluminum: 20Nm

Spring side, lower, allen screw (fix travel): 10Nm

Spring side, lower, alloy nut (fix travel): 8Nm

Spring side, lower, (travel adjust): 7Nm

Damping side, top, plastic: 5Nm

Damping side, top, aluminum: 20Nm

Damping side, lower, without adjuster: 10Nm

Damping side, lower, with adjuster: 7Nm

Crown clamps: 7Nm

Shocks

Air chamber: Hand tight.

Damper elements: See individual manuals.

General lubricants:

Grease: Conpanna (recommended), Buzzy's Slick Honey, Slickoleum.

Oil Rings: 20wt oil for 5-10 minutes.

Air chamber oil: Non-EQ forks use 3cc of 20wt oil. EQ forks use 1-2cc of 20wt oil.

Oil Bath:

Forks Pre-2025 do not use an oil bath.

2025 Durolux/Auron Oil bath: Damper side uses 20cc of 5wt oil. Air side uses 15cc of 20wt oil.

SR Suntour produces upwards of 150 different damper cartridges and finding the one for your fork may seem like a daunting task. Despite the number of cartridges we offer, finding the one you need is relatively easy:

Remove the stock cartridge from the fork (may require specific tools).

On the side of each cartridge is a cartridge number: FUNXXX-XX.

Search this cartridge on the North American web site and it should bring up the exact cartridge.

In the slim chance that the site does not provide your cartridge number, contact customer service for a potential alternate.

Voro shocks only.

Spring Calculator

All fork, shock, and seat post exploded views can be found here: All Diagrams