Hi
Some feedback from my experience for you :
Front Sprocket - 13 tooth renthal, 25? pounds
Rear Sprocket - 47 tooth JT's pattern part from M&P - about 10 pounds. Japanese made and amazingly good quality for very little money!
I've run this setup for over six months on my XT-E, which has an 18" rear wheel, and found the gearing spot on. I predominantly trail ride off-road, but recently did a weekend trip to the Ridgeway ~ 350 Motorway miles. 70mph kicked in at 4,500 rpm in fifth...
I guess that if you are running a 17" rear, just going to the 47 rear would be fine.
Cheers
Bish
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