I have a Quantum Smoke that needs a couple guides replaced. I was on Mudholes site looking at replacement guides but I'm unsure of how the sizing works. If I'm looking for a 3mm, 4mm, or 5mm guide, is that the inside diameter of the ring or the outside diameter of the frame? I can measure the guides on the rod but am unsure if I need to be measuring inside or outside diameter? Anybody know? Thanks

Diameter of the ring on the inside, measure the size in side and then order the correct size.

Admittedly, I haven't seen every production micro rod, but the ones I've looked at, none had a guide smaller than a 4 mm.

Ceramic insert guides are sized by the ID of the metal frame, or OD of the insert.

On 4/25/2017 at 11:07 AM, Gavin Tucker said:

Diameter of the ring on the inside, measure the size in side and then order the correct size.

 

Careful, Gavin.  That's not how they are sized.  Since I have been in rodbuilding they have been sized by the OD of the ring, which means for different brands and materials the ID's may be different for the same nominal sizes.  But if one orders a 4 mm micro to replace one with a 4 mm ID, he will receive a smaller guide than the one he's trying to replace.

 

Best way, Joelhains, as you admit to being new at this, is to take your rod to a good rodbuilder/repairer, and let him do it.  It won't be that expensive and very likely will look very close to original.  He can touch up the others which may be showing wear, too.  I doubt if you can do that on your first try.