Question about magnet strength

[jojoma]

Hi,

I've been using a bike computer wheel magnet to help with internal cable routing challenges. It works ok in that the magnet can find the cable thru the frame, which helps get the cable closer to the hole. But I'm wondering if a stronger magnet could help more, and maybe drag the cable to the outlet in the bottom bracket. Do little magnets vary in strength?

Thanks a lot

 

[dabac]

Yes, magnets do vary in strength. Look for "rare earth magnets".

 

[CAMPYBOB]

Yes, a rare earth magnet is what you seek. Park Tool sells a $55 (IIRC) internal cable routing tool set with stiffer lead cables, adapters and a rare earth magnet used to both attract and repel the inner wire to guide it towards the holes in the frame.