Picked up a used leather Ducati tank cover/bag combo. Anyone have one of these and know the best way to clean it? Cleaning leather always makes me nervous for fear of ruining it.

Does it have a tag on it by whoever made it?
I'd ask them.

They are made by BAGSTER.

http://www.bagster.com/monster-600-1000-s4-s2r-s4r-monstro-2922.html

http://cdn.bagster.com/media/wysiwyg/Bagster/catalogues/BAGSTER-COLLECTION-2018.pdf

It's the Ducati Performance tank cover and bag made by Ducati as shown below

2018-08-31_08-15-11 by ricknieto, on Flickr

That DP bag system was made by BAGSTER, the French company.

Ducati does'n make every single items they sell as Ducati Performance kit / parts.

They find the company who makes those above average products, re-badge their stuff with DP logo, and sell them at higher price.

You sure it is leather, not high quality vinyl?

FYI for anyone that comes across this post looking for an answer. After much internet scouring and debating purchasing Leather Masters cleaning and conditioning solution I instead used a bowl of luke warm water with a couple drops of Dawn Liquid detergent and an oz of vinegar. Microfiber cloth, cleaned and immediately dried without saturating the material. After it was clean and dry I sparingly used Meguiars Gold Class Leather Cleaner & Conditioner being careful to distribute evenly. I'm quite happy with the results.