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use single speed for high end and just rely upon your grip on handle and pedals.Doing so u can increase the inertia of your mtb so that it moves way along with u. Secondly,if u use fenders in rain,please remove them if not required.That's all i can say.


Just to add one more perspective: I've done this on a racing route full of hills. I swapped out my medium cage 105 for a mountain bike derailleur (Deore 9 speed). I was teased a bit, but after 85 miles I was asked a lot of questions as to how I did this and why it worked. Large cog was 34, and I had no problems shifting. So consider dishing out for a ...

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