The SR-Concept combines the new
concept of Reliance with all aspects of
the S-Concept: Smooth, Silent and
Strong. The Reliance Concept, or
R-Concept, means that dreams in reel
design are now evolving into reality.
The result of the use of the new S-R
Concept in design is the development
of many exciting new features.
Propulsion Line Management System

The most obvious component of the Propulsion Line
Management System is the new Propulsion spool lip design.
Through tens of thousands of casting tests and computer
simulations it has been determined that this new spool lip
design provides longer casting distances than a standard
spool lip design while preventing backlashes and wind knots
from forming. It also allows the line to flow off of the spool in
smaller loops during the cast which means less slap on the
stripper guide. This means longer casts with less friction. The
Propulsion spool also utilizes a long stroke design to further
enhance the casting distance. Furthermore, there is less
bouncing of the line on the spool lip like on a standard
spinning spool. Because of the unique shape of the Propulsion
spool, the line flows consistently off of the spool. So, with a
standard spool, friction alternates from heavy to light as the
line slaps the spool lip. This causes backlash and inconsistent
line speeds. The Propulsion spool lip provides consistently
light friction to overcome these situations.
Fluidrive II

Building upon the successes of Fluidrive, which provides
extremely tight tolerances and control in the cutting process,
Fluidrive II polishes the gear surface to maximize tooth
contact. This increases the efficiency of the retrieve for more
power with less effort.

This feature eliminates wobble during the retrieve by counter
balancing the rotor to enhance sensitivity and smoothness. By
using computer balancing, an approach similar to car tire
balancing, we are able to redistribute the rotor weight to
create smooth rotation and eliminate vibrations caused by the

S-Concept represents Shimano's initial philosophy on which
many of our spinning reel have been designed. The three
basic ideas that are inherent in the S-Concept are Smooth,
Silent and Strong.
•Smooth rotation and comfortable retrieve, coupled with
excellent drag performance and longer casting distance,
leads to our smooth, flawless operation.
•Silent operation of parts within the reel's construction
represents the attention to tight tolerances, reducing
excessive noise and resulting in the silent operation of our
•Strong, solid and functional construction leads to powerful
torque and durable drivetrains. This gives anglers the
strength and confidence they need to battle elusive gamefish.
•The new sizing of our S-Concept reels offers anglers a
bigger spool and smaller body, resulting in a lighter, more
comfortable fishing experience without sacrificing line
The end result are reels offering anglers smooth, silent and
strong reels that are designed for years of fishing use. The
knowledge of fishing and the minds of Shimano's engineers
have given today's angler state-of-the-art reels that are ready
for any challenge.

X-Ship provides improved gear durability. By supporting the
pinion gear on both ends with bearings, the pinion gear
maintains precise alignment with the drive gear. This means
the gears will stay in the same position under the heaviest
loads. The added benefit is that friction between the spool
shaft and gear are eliminated. This will enhance the casting
performance of the reel with lighter lures, and allow for longer
Super Stopper II

Super Stopper II anti-reverse uses a
one-way bearing that eliminates
backplay.This provides the angler with
instant hooksetting power. In some
reels, the Super Stopper II can be
turned off to allow backreeling for
special techniques and situations.
Cold Forged Aluminum Spool

These spools provide increased
strength and durability over diecast
aluminum or graphite spools.
Shimano Spirex RD Model # SR4000RD Spinning Reel
•Propulsion Line Management
System: Propulsion Spool Lip,
Power Roller III, S-Arm Cam
•QuickFire II One-Handed
Casting System
•Varispeed Oscillation
•5 Shielded Stainless Steel Ball
•Lightweight Graphite Frame,
Sideplate & Rotor
•Cold Forged Aluminum Spool
•S-Concept: S-Guard, S-Arm
•Ported Handle Shank
•Rubber Handle Grips
•Fluidrive II
•Repairable Clicker
•Approved for use in Saltwater
•Rated for use with Mono,
Fluorocarbon and PowerPro
The Spirex RG features the Propulsion Line Management
System, QuickFire II One Handed Casting System and
Varispeed Oscillation.
Series : Spirex Rear Drag
Family Type : Freshwater
Models Offered : 3
Key Feature : Quick Fire II
Ball Bearings : 5
Roller Bearings : 0
Maximum Drag (lb) : 6-9 (lb)
Retrieve Per Crank Range (in) :
•5 Bearings
•Retrieve Range 28-33 (in)
•9.9-14.5 WEIGHT RANGE (oz)
•Rear Drag
•6-9 (lb) Drag Power Range
•Moderate Crank Power
•High Cast Rating
Rock-solid reliability meets advanced technology, now that the
acclaimed Propulsion™ Line Management System has
become standard even on the modestly-priced Shimano®
Spirex® RG Rear Drag Spinning Reel. One of Shimano’s best-
selling S®-Concept reels, it’s the hands-down favorite for
walleye and smallmouth anglers who need a trouble-free reel
with a dependable drag. Now smoother and longer-casting
than ever! Features a graphite frame, sideplate and rotor; cold-
forged aluminum spool; Varispeed® Oscillation; Fluidrive® II,
Quick Fire II® one-hand casting system; Dyna-Balance®; and
a ported handle shank. Now with 6 shielded stainless steel
ball bearings for smooth performance all around.
•Rock-solid reliability meets advanced technology
•Hands-down favorite for walleye and smallmouth anglers
•Shimano S-Concept
•Graphite frame, sideplate and rotor
•Cold-forged aluminum spool
•Propulsion Line Mangement System
•Shimano S-Concept
Line Capacity:12/160
Ball Bearings:5
Max Drag:9 Lbs.
Recovery:33" Per Turn
Reel Weight (oz):14.5