They are rediculously cheap on Autodoc. £40 for an ABS sensor and rear hub and delivery, vs. other brands being £100 click and collect at ECP. 

Has anyone any experience of Ridex parts please? 

Thanks 

I've used a couple of Ridex parts on my Fabia, mainly smaller items, and honestly haven't had any problems so far. Fit was good and they've been working fine. For £40 compared with £100, I'd probably give them a try for non-critical parts. I wouldn't necessarily choose them for brakes or other safety-related stuff though.