it all really depends on personnel opinion.
haven't used tenere off road much but took my old xtr off road good bit and found a 14 tooth on front instead of a 15 gave better control and feeling.
I would suggest try it on standard gearing and see how you get on. then if you want to change to lower you can buy a 14 tooth front which is only about �10 or �15 worth and see how you get on.
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 Plough on
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