Correct spokes for Shimano hubs into Sun CR18 rims

[chriscross1966]

Hi folks, I'm struggling to find a spoke calculator that knows about Sun's CR18 rims in 349 size, 36-hole and at the same time understands the hubs I'm using. Does anyone know one?... I want to lace a Shimano SG-S700 11-speed Alfine rear hub in 1x and a Shimano HB-M475 in radially for the front. Now the odd thing is that the rear should do that undished, whereas because the front has a single disc it will be dished over.... hence me wanting to find a calculator that knows about them....

 

[QFour]

Use prowheelbuilder and put your own dimensions in. You will need the data sheets for the hubs or a vernier calliper to work out the sizes. The CR18 rims you just need the ERD for the rim in your case 349 which looks like a 16" wheel. Hmmmm Brompton ... Looks like you are going to have fun.

11 Speed Hub Sizes .. http://www.kstoerz.com/freespoke/hub/190

Had a go at working it out .. I get 159.6 and 161 Spokes with 3 crossed

 

[chriscross1966]

Having read a bit more up regarding wheels, it looks like radial is a bad idea with a disc on the front, so I'm guessing 2x at both ends.... the ERD is 340mm

 

[chriscross1966]

OK, that seems to be working.... company bicycle guru seems to think I'll e OK at 2x on both ends....

 

[chriscross1966]

Many thanks for that link BTW, they're pretty exhaustive, even though I had to put the CR18's ERD in by hand...