building a new wheel, need specs

[lilrootrx7]

i gotta get a new wheel built up and i was going to get a hope pro 2 trials hub and lace it to an echo rim. i dont know what length spokes i need because i cant find out the specs on the wheel. my friend wants me to order the rim and he will measure it up then we can order spokes but I want to save some time and just get everything ordered at once.

i dont know exactly what dimensions he needs but he said he wants to build up the wheel in a 4 cross pattern. thanks

[felix]

32h: 257,3mm on both sides for 3x and 269,4mm for 4x.
36h: 253,4mm for 3x and 264,0mm for 4x.

[Mango]

do these spoke lengths work with a tryall rim on a hope hub?

[felix]

do these spoke lengths work with a tryall rim on a hope hub?
That would be 261,2mm for 32h and 3x.
273,4mm for 32h and 4x
257,4mm for 36h and 3x
267,9mm for 36h and 4x

[lilrootrx7]

where are you getting these numbers from just out of curiosity? do you have a list somewhere? and if i order the spokes, do i round the number up or down?

[felix]

http://www.sheldonbrown.com/rinard/spocalc.htm
I would round up.

[lilrootrx7]

i talked to my friend whos building the wheel and he wanted me to round it down to 269 so i got everything ordered so i will post up some pictures of the wheel end of next week. thanks a lot for the info!