* Tough bags
    - alu cases : 3 countries, as far as I know, have skilled specialists : Germany, where KLE is something far to unknown, and the USA, where it seems to have never landed. UK has a good manufacturer, but nothing for KLE at the moment.
      

-> Touratech. No KLE racks, but the panniers can fit to Hepco & Becker's, and you can get the rack from  TTech. Or buy this, and do the rest yourself :  Only one type, (Zega-Case) but 3 sizes, and a lot of accessories.
-> Hepco & Becker : a range of 2, with two sizes for each, and assorted top-cases Alu standard :  (on a KLE !)
Alu Exclusiv :
New series from Hepco : the Xplorer :
-> SW-Motech Trax : 2 sizes, 2 finishes, inner (standard or waterproff) and superior bags available, as well as a top case. The famous "quick-lock evo" rack is KLE compatible, as you can see on the picture :.

In the US people make wonderfull cases, but know nothing about KLE. And it's more complicated to buy things outside the Euro zone. But I can't help dreaming about those marvels (from 3 different manufacturers) : You'll easily find the websites...

-> Jesse Luggage : 3 colours : aluminium, grey or black : There's an importer in Europe, but anyway they only fit BM bikes.

-> Happy Trail (a range of 3 models, 3 colour choice : alu, grey or black, various widths)  (notice the smart shape of this one, coming as close to the wheel as possible : other 2 types are straight, but still have the cut on the outside lower side. Greys and blacks are "powder coated" : 90$ HT more, for each bag.  This make has no importer, as far as I know, but "racks" many bikes : here is shown a Suzuki 1000 V-Strom.  Of course and unfortunately, no rack for KLE. It's a pity, because their racks seem to be especially strong. They use square tubes. Same flexibility as at Touratech's, you can fit their panniers to other brand's racks, they'll help you to.

Nice KLR!

-> Moto-Sport :   Baja et Bavaria names stand for the sizes : Bavaria is the bigger one. Colour as you like it.     "Dirt Bags" seem to be good soft rear panniers, but need special supports designed for each bike
-> MicaTech : A very nice product : nearly invisible mounting system : a special part-size opening, so you don't have to look for your socks on the ground in front of laughing customs employees at every border. It's just a joke: you're supposed to put a liner in anyway aren't you ? But no way to fit a KLE...

        
 

UK has a fine manufacturer : Metal Mule
A nice product : 3 sizes, 2 top cases sizes, 3 finishes... But no KLE rack ! What a pity !

 
  - Adventure Soft bags, and their tough, but heavy support rack :

I don't think they've shot a bike picture at random...

Another interesting system, KLE compatible, from New Zealand, by VENTURA :

The bag can be set frontward when riding alone, becoming a backrest, or backward when you have a passenger. The luggage rack can be removed, and fitted with a grab-handle : ->
A wide range of bags, various sizes, colors, extensible or not.

      - Plastic bags :

- in terms of adventure bike stuff, plastic bags need to be very special to handle the stress of long off-road trips. Hepco & Becker's  Gobi cases seem to be tough. Unfortunately their price is rather worse than those of alu cases. Only one size, maybe too wide for the KLE. Nice picture anyway :
- cheaper but less "adventurelike", the "junior enduro" set : Perfectly fits the one-exhaust KLE, with their assymetric rack A good choice for a KLE, if it's strong enough for your riding style. Goodies : In the left case case you can put a full face helmet. This is not true anymore. Hepco has changed its shape, as you can see on the PDF :	+ can go with 2 top-case sizes + options for top-case : upper rack, backrest + softbags for panniers and top cases, etc
Something interesting : seems very tough, but as usual, not for KLE. It was close : they fit the KLR... Model : Caribou Make : Adventure Motorcycle Equipment