Bike maintenance help

[Charlotte's Tandems]

Charlotte's Tandems is a unique charity that lends tandems and tag-along bikes to people with disabilities or additional needs for free, so that they can ride wherever, whenever and with whoever they like.

We have a Helper near Haverfordwest, who lends out our bikes there, but she doesn't know much about bike maintenance and could do with some help. Anyone nearby that could help her out with this? I think that the tandem sounds as though it needs the brake cables replacing.

I look forward to hearing from you.

Best wishes,
Alex