Spoke pattern/length

ddraver

Hi all

I'm trying to replace a spoke (Mavic XM819 on Hope Pro II) and an estimation with a 2 cross pattern gave me 252mm which is just too short to enter the nipple (!!) (I used - http://www.prowheelbuilder.com/spokelengthcalculator/)

Trying a 3 cross pattern gives me 8 more mm but I can only see 2 spoke crosses on the wheel

I'm sure this is stupid noob question but WTF?

Thanks
DaveK

supersonic

Is there a small 'cross' right next to the spoke elbow as it exits the hub flange? Many miss this one.

Make sure you put in the number of spokes too ;-)

ddraver

supersonic wrote:

Is there a small 'cross' right next to the spoke elbow as it exits the hub flange? Many miss this one.

Oooooohhhhh yyyeeeeaaaahhhh :?

ahem, thanks Sonic :oops:

ddraver

So I actually need an average of 161mm (range something like 160.7 to 162.3) - is it best to go 1mm shorter or longer?

nicklouse

what length nipples are you going to use?

I generally go shorter.

supersonic

161 sounds 100 too short!

nicklouse

Mmm and 261 is not the average.

258-260 for a front 32 spokes

259 for the rear.

and 256ish for as 36 spoke build 255/256 ish

ddraver

Sonic is right, 261mm

Nick i still get about 261 with an XM819 Disc and a pro ii hub, 32 spoken, 3 cross??

nicklouse

front or rear? and what hub dims. are you using? your own or the ones in the program?

ddraver

Program...

Front and rear seem to give similar results, which is sending up a little red flag I admit!

nicklouse

similar lengths front and rear is not odd, in fact it is quite common. but what is odd is your 261mm

on a front I get results

Left spoke length: 258.3

Right spoke length: 260.1

ddraver

WTF? I get 260.7 and 262.2