Hi,

about to fit new inner and outer cables to the mountain bike. The Shimano kit comes with XTR OT SP41 outer casings.

Can't remember how I fitted these the last time I bought them. I think I fitted them grease free as the kit came pre-lubed. I think the lining of the outters have a special low friction coating as well but don't quote me on it...

I can't see any lube or grease anywhere, so just wondering if anybody knows if I should add any oil or not (to improve shifting accuracy and extend the longevity of the cables)?

Thanks,
Paul.