Because the size of rainbow trout can vary drastically based on where you are fishing and whether or not steelhead are a part of the equation, the rod and reel weights can vary drastically.
Small Lakes, Rivers, Streams (No Steelhead)
Most fish will be smaller, so you won’t need heavy gear.
Spinning Gear
Light to Medium Action Rods & Reels
Fly Fishing Rod Weights
Small Trout (0-4)
Average Size Trout (4-6)
Bigger Lakes, Rivers with Steelhead
You will be able to catch bigger fish and will be throwing bigger baits and may be trolling.
Casting
Medium-Heavy to Heavy Action Rods & Reels
Fly Fishing Rod Weights
Small Trout (0-4)
Average Size Trout (4-6)
Big Trout (7-9)
Trolling
Medium-Heavy to Heavy Action Rods & Reels