Back in May I posted a Short Term Review of the Anthem X 29er and since then I have raced and ridden this bike a bunch.  Most recently I raced it at the Pierre’s Hole 100 and I rode it exclusively while training for the Park City Point to Point.  
My initial impressions of the bike have held true and I find myself liking this bike more as I ride it in different conditions.  Since May I have been able to experiment with suspension setups to dial-in the ride to suit my preferences and course conditions. 
Race ready, it weighs just a fuzz over 24 lbs
SRAM 2 x 10 drivetrain
The ENVE wheels are nice and stiff and the IKONS with EXO sidewall have held up well
A little more ENVE bling for the cockpitMy general thoughts on suspensionIf I have a bike with 100mm of travel, I feel that I should be using all 100mm of travel on any given off-road ride.  I also want my bike to ride high in its travel while pedaling but become active on medium to large bumps. 
Fox RP23 Rear Shock SetupI have settled on 5 PSI over my nekkid body weight (166 lbs + 5 = 171 PSI) as the best combination of efficiency and comfort.  I run the RP23 on ProPedal #2 almost all of the time unless I know that I have a long rough descent ahead of me.  For the Pierre’s Hole 100, I ran 5 PSI more than normal because of the long pavement climbs but this would be too firm for everyday riding in my opinion.  However, at Pierre’s Hole I also made it a point to flip the ProPedal lever to “open” for the Mill Creek & Bustle Creek descents and it was smooth like butter!  Lastly, if you ride with a loaded Camelbak most of the time, I would recommend 10 PSI plus your nekkid body weight to compensate for the additional weight on your body. 
RP23 Shock with ProPedal set to "2"Fork Setup I am running a 2011 Fox F29 FIT RLC on my Anthem X 29er.  I have found that Fox’s factory PSI recommendations are on the high side. In other words, if I run Fox’s recommended 80 PSI (155 – 170 lb rider weight), I don’t get full travel and the ride feels harsh.  I am running 70 PSI and I set the Low Speed Compression knob on +1 or +2 clicks which is not much at all.     
Anthem X 29er vs. HardtailWill I ever race a hardtail again?  Of course I will…I think…maybe.  I find myself gravitating to 100-milers, 12 Hour, and 24 Hour races (and maybe longer) and therefore comfort will always be part of the equation.  I felt less beat up after the 12 Hours of Mesa Verde and Pierre’s Hole 100 races this year than I felt last year after riding my hardtail and I have to believe this reduces my recovery time.  While pre-riding the Park City Point to Point course I was confident that I would be faster on my AnthemX 29er than a hardtail…and I knew I would enjoy myself a lot more.
But which is truly faster overall?  Fat Cyclist did an interesting pre-Leadville test-run on two very nice bikes. (
Superfly 100 Vs. Stumpjumper: Fight!) I thought his test was excellent and his results did not surprise me as I have suspected a FS would be as fast as a hardtail on most courses.  The Anthem X 29er has the right balance of snappiness and comfort and I feel as if I am faster on this bike than any other bike in my garage currently.
Other StuffI hate a noisy bike.  I am happy to say that my Anthem X 29er is quiet and I haven’t had any issues with the pivots or the bottom bracket.   
It’s not carbon. The aluminum Anthem X 29er is competing with a trio of carbon FS 29ers in the endurance race bike market:  The Specialized Epic 29er, the Santa Cruz Tallboy, and the Trek Superfly 100.  As I mentioned in my Short Term Review post, the AnthemX 29er frame was only .09 lbs heavier than my carbon Santa Cruz Tallboy frame.  I don’t have frame weights for the Epic or Superfly 100. Retail price of the AnthemX 29er frame is a $1000 less than a Santa Cruz Tallboy frame.  Having said this, if Giant were to release a carbon AnthemX 29er with the same geometry and suspension design that also saved ½ – ¾ lb I would be all over it. 

I really like having the open front triangle.  The main advantage is that it is super easy to get to a water bottle.  Another advantage is that I can use the front triangle for storage if/when I want to run a second water bottle cage on my seatpost as I did in the Pierre’s Hole race.  I strapped a tube, lever, and CO2 inside the front triangle and it was out of the way and secure.
One criticism I have read about the AnthemX 29er is that the chainstays are too long.  Personally, I don’t think that short chainstays are the absolute “key” to a good 29er.  This myth gets perpetuated too often in my opinion.  The plus side of longer chainstays is that the bike is very stable at speed.  I love hauling ass down long fire road descents (think Laramie Enduro) and therefore I like a longer wheelbase.  Riding a bike with short chainstays and a short wheelbase recently (Giant XTC Composite) has proven this to me.
Final thoughts In a nutshell, this bike is simply fun to ride.  Weighing in at 24 lbs, I don’t feel as if I am taking a big weight penalty to race the Anthem X 29er instead of a 29er hardtail.  In fact, my old Niner Air 9 hardtail weighed almost 24 lbs as well. The combination of good geometry, low weight, a solid suspension design, and proper shock setup make this bike feel fast.  I believe that the AnthemX 29er leaves my body feeling more fresh at the end of an 8, 12, or 24 hour race and this can make a big difference in how quickly I recovery.  With my recent decision to extend my season and race the 
25 Hours of Frog Hollow, Solo, this bike is going to see more race action this year.