Elliptical Oscillation System:
The revolutionary EOS design is patented in a number of countries around the world and is the soul of the Okuma mid to upper-end spinning reel range. The EOS design uses elliptical shaped oscillation gears which provide exceptional line lay, improved smoothness and maximum long-life durability. The EOS gears are always engaged and provide a very smooth spool stroke, eliminating the spool from jumping as commonly found on many reels.

Dual Force Drag System: 
DFD incorporates both surfaces of the spool to maximize high-end drag pressure, efficiency and overall smoothness. Mounted in the top of the spool and protected by the Hydro Block system is a multi-disc felt drag system that works in conjunction with a secondary drag system that is mounted under the spool.  Even pressure is applied to both surfaces of the spool for maximum stability

Blade Body Design
Okuma's Blade Body Design narrows the profile of the reel's frame. This feature reduces weight, eliminating the extra mass and bulk of the reel, giving the reel a much lighter and compact design with a strikingly sharp appearance.

Crossover Construction
Innovation at its freshest...the new Trio spinning reels from Okuma feature a unique crossover construction. We took the best from aluminum construction and lightweight graphite materials and created a distinctive new concept in reel design. The solid one piece stamped aluminum reel stem and rotor arm are paired with lightweight graphite side plates and a rotor housing which provides strength where needed, and weight savings where possible. The Trio spool construction utilizes a multi-piece construction, housing the drag system in an Aluminum Drag Chamber for added stability and smoothness, while utilizing a lightweight graphite housing for weight reduction and distinctive styling.

Baitfeeding System:
Okuma's patented baitfeeding system allows anglers to disengage their spinning reel spool and allow their bait to run freely. The baitfeeding system incorporates a secondary micro-adjustable drag system at the rear of the reel that allows for precise adjustment of the spool for bait control. In order to disengage this system simply turn the handle. The On/Off lever on the rear of the reel will automatically disengage the baitfeeding system so you can fight your fish with the main drag system.

Okuma's proprietary High Density Gearing II incorporates an extremely strong alloy composition with a special anti-corrosion coating process. The result is high density, corrosion resistant gears that are built to handle the severe elements and brutal strains placed on a reel's internal gear system.

AlumiLite Frame Construction:
AlumiLite construction incorporates Okuma's rigid aluminum body technology on spinning, trolling and fly reel designs. Aluminum frames are stronger and more rigid and are capable of withstanding more pressure and torque than traditional graphite frames.  These lightweight, diecast aluminum frames provide more precise tolerances for precision gear alignment, maximum castability and ultimate durability.

Corrosion Resistant Coating combines Okuma's proprietary HDG-II gearing system, which offers exceptional anti-corrosive properties compared to standard gears, with a coating of Corrosion X HD to all internal and external parts. The CRC process actually penetrates and bonds to the metal, which helps significantly toward long term protection.

High Performance Ball Bearings: 
The balls used on the HPB's are constructed from the same high-grade stainless steel material as the bearing housing.  These bearings were designed to be more than 10 times more resistant to saltwater than standard stainless steel bearings.  These bearings may even outlast the angler himself.

The Hydro Block design features a rubber gasket mounted in the top of a spinning reel spool.  This rubber seal blocks water and foreign materials from entering the drag system.  The Hydro Block system ensures that your drag washers always perform at optimal levels.

The Even Flow Roller System utilizes a ball bearing under the line roller to maximize efficiency.  This roller helps reduce line twists by freely rolling over the line roller without friction.  Without this system, line will naturally twist when drag is pulled.

The RES II System stands for Rotor Equalizing System.  This second-generation RES System incorporates a computer-balanced weight precisely placed in the rotor.  This weight allows for precision balance and eliminates all spool wobble for perfect alignments and smooth cranking.

When you see this spare spool icon in the Okuma catalog or on any of our packaging, you will know that you are getting a second spool with your purchase.  An extra spool is perfect as a back-up system or for carrying different line sizes to adjust your techniques to fishing conditions.  Ready to fish.

This system allows for instant handle engagement and eliminates all handle back play commonly found in many reels. This is accomplished by using a corrosion- resistant stainless steel roller bearing that engages the reel in one direction for rock-solid hook sets.