Studio Ocean Mark No Limits 20SW23000BM Spool for Shimano Reel
The No Limits 20SW23000BM spool from Studio Ocean Mark is the pinnacle of reel upgrade engineering for heavy-duty fishing.
The spool was specifically designed to tackle the line capacity and casting challenge for Shimano Stella 18000/20000/30000 SW reels.
This is an upgrade spool designed to hold massive amounts of thick PE line (PE 10 / PE 12)
while maintaining significantly lighter weight than the stock spool, and with an improved drag system for optimal heat dissipation in prolonged battles against bluefin tuna, marlin and GT
- Increased Line Capacity: Exclusive design expands spool volume and allows holding massive amounts of thick PE lines (up to PE 12), so you’ll always have critical line reserve for the long runs of giant fish.
- Advanced Heat Dissipation System (Radiator Unit): Prolonged battles generate extreme heat in the drag discs. The thermal unit at the bottom of the spool efficiently dissipates heat, prevents drag power loss and protects the line from weakening due to heat.
- Spool Lip Engineering (Multi-Cut Spool Ring): The spool lip is designed at a special angle that drastically reduces braided line friction when exiting the reel, improves casting distances and significantly reduces the chance of wind knots forming.
- Lightweight and Strong Aluminum Construction: Manufactured from aerospace aluminum alloy with precision CNC machining. The reduced weight balances the setup perfectly and reduces fatigue on long fishing days.
- Line capacity:
- PE 8 – approx. 500 meters
- PE 10 – approx. 400 meters
- PE 12 – approx. 300 meters
- Reel Compatibility:
- 19 Stella SW (18000 / 20000)
- 13 Stella SW (18000 / 20000)

























