Can anyone give me some advice on sizes of hollow spindles for a 26" 18 gear MTB?

[Muddybuddy]

Hi thanks for the welcome.I need urgent help I am doing trying to rebuild my muddyfox.I need advice on quick release.I am converting the frot,rear and seat to quick realease.I can't judge by size but can anyone give me some advice on sizes of hollow spindles for a 26" 18 gear MTB.I don't want to commit to buying all the kit and no thanks to my brother my measuring tape has gone missing so can anybody here help this damsel in distress please any info would be great.

 

[lpretro1]

It's not just the size it is also the thread pitch you will need to consider - best take to LBS and ask