Crown / Samducksa ST Silicone Rubber Grommet ST15–ST45 – Tension for 309, Crazy Dongpal Pro & Helpme Levers

Original Crown / Samducksa ST series silicone rubber grommets. Korean levers use a rubber grommet instead of a metal spring, so the grommet decides how heavy your lever feels and how fast it snaps back to neutral. Change the grommet to change the tension.

Choose your tension

• ST15 (grey): very light
• ST20 (yellow or green, depending on batch): light
• ST25 (white): light, close to a Sanwa JLF feel. Stock grommet in the Crazy Dongpal Pro
• ST30 (violet): medium, the classic Korean lever feel
• ST35 (blue): firm, popular for Tekken
• ST45 (red): heavy, fastest return to centre

Fits

• Crown / Samducksa CWL-303, 307 and 309 series (MJ309, FJ309, Helpme, New Helpme)
• Crazy Dongpal Pro and New Crazy Dongpal
• Knee Lever Neo housing (for the original Knee feel, see the Knee grommet below)

Does not fit: IST Knee, Alpha, Myoungshin, Fujin, Sanjuks V7 or Japanese-style Sanwa / Seimitsu levers (those use a spring).

Which grommet do I need?

• 309 / Helpme / Crazy Dongpal Pro and want a different tension: this product, pick your ST number.
• Replacing the stock grommet in a Crazy Dongpal Pro: Crazy Dongpal Pro ST25 grommet.
• Replacing the stock grommet in a Knee Lever Neo: Knee Lever Neo original grommet.

Price is per grommet. Not sure which tension suits you? Message us on WhatsApp and we'll help you choose.