Originally Posted by
kenhill3
+1 on the XTR's. The only caution may be the cost of the chainrings when it comes time to replace. Shimano replacements will be big bucks, while aftermarket better pricing.
The Nashbar 48/38/28 would be a silly choice for offroad.
This is exactly why folks should only consider 2006 or later XTR cranksets. Pre 2006 has an irregular bolt pattern and soft chainrings. They are being cleared out pretty much everywhere below cost.
As long as you keep up with changing the chain, the 2006+ XTR middle ring should last multiple seasons. It's titanium (w/ carbon molded chain ramps) which has exceptional wear properties under this application. The 2007 XTR has a similar setup except the ring is steel with carbon ramps. Though for some reason they still include an aluminum granny ... yuck!!!
XTRs come in 165mm, 170mm, 175mm and 180mm. I'm running 180mm XTs. So far so good.