Spokes 3mm too long, too long?

TomYoung said:

Hi all:

Ordered rims, hubs and spokes from an online retailer. The retailer
listed the ERD for the rims and I used that ERD in my spoke
calculations. Now, after lacing up the wheels but not starting
tensioning, I see that the rim manufacturer has a different, smaller
ERD listed at their site; the new ERD results in the spokes I ordered
being about 3mm too long. What with rim shrinkage and spoke stretch
during tensioning, am I asking for trouble her with these spokes?

TIA

Tom Young

Yes..not as many threads being engagaed plus depending on the
rim/sockets/eyelets, may have the end of the spoke poke the rim strip
enough to puncture the tube. Can't ya return the spokes/

Qui si parla Campagnolo said:

TomYoung said:

Hi all:

Ordered rims, hubs and spokes from an online retailer. The retailer
listed the ERD for the rims and I used that ERD in my spoke
calculations. Now, after lacing up the wheels but not starting
tensioning, I see that the rim manufacturer has a different, smaller
ERD listed at their site; the new ERD results in the spokes I ordered
being about 3mm too long. What with rim shrinkage and spoke stretch
during tensioning, am I asking for trouble her with these spokes?

Yes..not as many threads being engagaed plus depending on the
rim/sockets/eyelets, may have the end of the spoke poke the rim strip
enough to puncture the tube. Can't ya return the spokes/

In my, albeit limited, experience, it's more likely you wont get the
wheel up to tension. Well, thats what happened when my spokes were a
tad too long 🙁

Qui si parla Campagnolo said:

TomYoung said:

Hi all:

Ordered rims, hubs and spokes from an online retailer. The retailer
listed the ERD for the rims and I used that ERD in my spoke
calculations. Now, after lacing up the wheels but not starting
tensioning, I see that the rim manufacturer has a different, smaller
ERD listed at their site; the new ERD results in the spokes I ordered
being about 3mm too long. What with rim shrinkage and spoke stretch
during tensioning, am I asking for trouble her with these spokes?

TIA

Tom Young

Yes..not as many threads being engagaed plus depending on the
rim/sockets/eyelets, may have the end of the spoke poke the rim strip
enough to puncture the tube. Can't ya return the spokes/

Wrote the retailer Thursday and explained the situation. Haven't heard
back yet, though.

Thanks.

TomYoung said:

Qui si parla Campagnolo said:

TomYoung said:

Hi all:

Ordered rims, hubs and spokes from an online retailer. The retailer
listed the ERD for the rims and I used that ERD in my spoke
calculations. Now, after lacing up the wheels but not starting
tensioning, I see that the rim manufacturer has a different, smaller
ERD listed at their site; the new ERD results in the spokes I ordered
being about 3mm too long. What with rim shrinkage and spoke stretch
during tensioning, am I asking for trouble her with these spokes?

TIA

Tom Young

Yes..not as many threads being engagaed plus depending on the
rim/sockets/eyelets, may have the end of the spoke poke the rim strip
enough to puncture the tube. Can't ya return the spokes/

Wrote the retailer Thursday and explained the situation. Haven't heard
back yet, though.

Thanks.

What rim is this? It changed enough so that the spokes are 3 whole mm
longer than they should be? That's a change in the ballpark of 6mm in
ERD. With most spoke brands, you run out of spoke threads if the spokes
are overlong by much at all.

ERD's get changed and sometimes various parties list the wrong ERD.
What you really should do is just measure the ERD on the rims you have.
I usually measure it before I build a wheel - most rim companies have
at least a little history of making changes out of nowhere that cause
the printed ERDs to be contradictory, and it's impossible to know what
you have until you measure.