I live in just about the flattest place in the world and 60Nm are fortunately more than enough for my old legs to keep up now with the youngsters. They no longer overtake me on the inside and threaten to push me into oncoming traffic.It depends on your usage. If you talk MTBs and go uphill steep the 105Nm will be fantastic. If you use your bike for trekking the 85Nm serve you very well. But thats really OT now.
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