The KR CONCEPT™ Guide Spacing Calculator takes the guesswork out of building spinning rods from 5'6" to 9ft. Give it three inputs, your line size, your reel, and your blank length, and it accounts for every variable that decides where each guide belongs. Built around the KL-H high-frame, small-ring K-series frames that started the KR CONCEPT, this calculator handles micro and conventional layouts alike, spacing everything from the leader knot at the choke through the larger running guides toward the tip. Work through four short steps and you land on a finished layout that rarely needs a second pass, tuned for the quietest, smoothest, longest casting performance a spinning rod can deliver. Set your inputs below and build your KR guide spacing layout in seconds.

Build Your KR Guide Layout

1) Enter the total length in inches of your rod blank
2) Mount you reel in the reel seat and enter the distance from the rod butt to the tip of the spool axle on your spinning reel (at a "mid" position). It's OK to estimate this distance based on past rods you have built.
3) From the drop down menu, choose the size reel (series) you plan to use on this rod.
4) Choose whether you want a micro or conventional rod. A "conventional" build will use KL-H guides but non-micro running guides. Best for larger leader knots.
5) Tell us about the line you plan to use with this rod.


Click calculate to generate a complete build sheet for your blank!

YOUR ORDER:
Stripper:
2nd Guide:
3rd Guide:
Number of runnings guides:

Suggested tops for Micro rods with 4.5mm running guides and tube sizes below 6.5 - LG
(not all frame colors and rings, see catalog)

Suggested tops for Micro rods with 5mm running guides and tube sizes 4.0 - 7.0 -
MN or F (4.5, 5.0, 5.5)
(not all frame colors and rings, see catalog)

Suggested tops for Micro rods with 5.5mm running guides and tube sizes 3.5 - 6.0 - F
(not all frame colors and rings, see catalog)

Suggested tops for Conventional rods with 6 or 7mm running guides and tube sizes 4.0 to 6.5 - MN


YOUR BUILD SHEET:

Stripper Position beyond spool axle tip:
Stripper to Second Reduction Guide:
Second Reducer to Third Reduction Guide:
Third Reducer to Choke Guide:
Total Reduction Train Length:
Choke Point Position beyond Spool Axle Tip:


TIP
As a final performance tweak, consider moving the choke guide slightly further out to obtain the position shown at left. This often helps line "turn the corner" as it reaches the blank and helps smooth the flow of line even further.