I all mountain ride and my personal preference is a 29er after coming off a 26. But it is a personal thing. I am over 6" tall so don't find any issue with any loss of agility. Rolls over obstacles easier and has more corner grip. Just generally enjoying riding it more than I did my 26er.

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Rotor of Fail
Ducati 998s
Ducati Streetfighter S
496 CI Injected Big Block. Carbon positive???