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Submitted by
bigideas
a Cross Country RiderDate Reviewed: April 24, 2012
Strengths: Frank (Frank's Cyclery in Raleigh, NC) set me up with this crankset. I have to say that his knowledge and access to quality vendors is unparalleled.
So I upgraded to this crank (set up as a single speed with a Race Face 34t chain ring/18t Surly cog) from a Bontrager Sport, so everything about my ride seems upgraded right now. My pedaling certainly feels more efficient, and I really have no regrets.Weaknesses: None that I have discovered so far.Bottom Line: Quality components can really make a difference. This crank from Shimano is a great upgrade for my Vassago Jabberwocky, and it makes riding even more fun than before.
Duration Product Used: Lake Crabtree/Umstead Area
Price Paid:
$500.00
Purchased At: Frank's Cyclery
Bike Setup: 20" Jabberwocky SS 34/18
XTR M980 Crank
Shimano SLX Hydraulic Disc Brakes
Thomson Elite Seatpost/Stem
WTB Rocket V Saddle
Chris King Headset
Easton EC90 SL Carbon Bar
Overall Rating: Value Rating:
Submitted by
chefsbikes
a Racer
from Austin TexasDate Reviewed: April 13, 2011
Strengths: Sexy as hell. Smooth compared to the 970's...Weaknesses: No bash guards for a while, or ever. Tough to match the outer ring.Bottom Line: New Shimano 2011 XTR M980 10 speed Triple cranks installed on an XTR 970 9 speed drive train shift perfectly.
I was a bit hesitant to buy the FC-M980 cranks with an older XTR 970 9 speed set-up, but they are just too cool. I wanted the look of the new XTR, and they were just as expensive as the new/old 970's, so I bought them.
Zero issues running the new crank on 970 9 speed. I have Run City Park in Austin twice, and Reveille Ranch in Burnet three times on the crank. That's about 40 miles of shifty single track. Clean and crisp shifts, and I only ground the big ring a couple of times. The teeth held up well on the granite in Burnet.
The only adjustment during installation on a my front derailleur FD-M970 was the lower limit. The FD was set to XT M760 cranks. It shifted great right out of the box. No rear derailleur issues at all. Wipperman 9 speed Connex chain as smooth as can be. Granny gear is a bit tougher, and the smaller big ring gives you a touch more clearance. Chris King bottom bracket for Shimano spins sweetly with the FC-M980 crank..
The crank is beautiful, light and solid. I'm just dreading the big ring. It's sharp, and it looks real expensive in more ways than one. I might just grind it down to a smooth ring after it has been rocked.
I would recommend them for sure. Yes, they are expensive, but you do get what you pay for in this case. I now lock my bike up in my house after I bought these cranks....
Favorite Trail: Reville Ranch
Duration Product Used: Less than 1 month
Price Paid:
$379.00
Purchased At: eBay
Similar Products Used: XT 760, XTR 960
Bike Setup: 08 Santa Cruz Blur XC 26, Fox 100, Chris King everything, Hope Tech M4 brakes 203/183, 970 XTR 9 Speed drive train, Wipperman 9 speed Connex Chain, FC-M980 Crank and M985 Trail pedals
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