Forum menu
Hi, using the Sapim spoke calc for a disc rear wheel build. It is suggesting 288.8mm drive side and 290.8mm non drive side, obviously I will round this up or down but my question is this. I have a Stans rim which has the spoke holes offset 1.5mm from the centre, I presume the spoke holes should be offset further from the drive side? If that's correct would it just be a case of using 291mm spokes all round? Or do I have this all wrong! Thanks in advance.
I would use a spoke calculator that has an input for asymmetric rims
https://www.wheelpro.co.uk/spokecalc/
Yeah, DS will need to be longer, and NDS shorter for an asymmetric rim. So I'd go for 290 all round assuming the calculations are correct!
Typically, the spoke calculator will allow you to put in an offset, or you can add it to one flange distance and remove it from the other.
Typically, the spoke calculator will allow you to put in an offset, or you can add it to one flange distance and remove it from the other.
This.
But for a few millimeters, I'd ignore it. The flange distance/offset component of the calculation has far less of an impact than the ERD and flange height. It's like when people get in a tizz over some Cannondale/Specialized frames needing a specific wheelset as they're offset (boost without having to buy new boost components, it never caught on). It's not, it's about a full turn, two at most, which is still less than 1mm in length.
Thanks for the help. I don't have the hub / rim here atm, so re measuring on a different calc is out of the question, however with the offset only being 1.5mm away from the drive side I guess going 290mm all round makes sense. Thanks 😊