I have raggy throwovers and a tank bag when I'm away on the FZ (pics from Farmyard on my profile) expandable and can carry loads, just be careful with tank bag, plastic tank on CBR innit, secure proper and don't load too high you might want to see clocks and don't forget to fill up before putting it on
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You say you're doing DAS in May so will come in handy as starter on big bike.