Added a product review for 2012 Trek Session 9.9 8/11/2012 7:42 AM
The Good: Weight, geometry and almost endless geometry options, strength, carbon fiber, stiff, options for wheel spacing, comes with standard headset installed and a Cane Creek Angleset in the box! Internal cable routing option, built in fork bumpers, carbon frame protection.
The Bad: Price, shock.
This is for frame review only so cannot comment on the stock spec list. This frame is the best I have ridden to date. I upgraded from the Aluminum Session 88 DH and yes there was a very noticeable difference due to the instant 2lb drop and carbon fiber's reaction to rough terrain. I had to change all my compression and rebound settings. I have a fully custom build that I swapped straight over from the aluminum. The frame is not a plower like others I have ridden in the past. The weight allows it to be light and nimble so that can sometimes lead to quick line changes without expecting them. I run mine rather high in compression front and rear so I ride on top of the rocks and be able to pedal without bob. The frame has a very dynamic feel on the trail. You can move it and throw it around with ease due to it's lighter weight.I built and rode it initially with the TWR Fox RC4 rear shock with Ti spring and simply did not like it. Bike was 34lb (large). However, I could not get the RC4 to smooth out small bumps. I switched it to my Cane Creek Double Barrel/Ti combo and it made all the difference. With a beefier wheel change mine now sits at 35lb 0oz which feels great. The only annoyance I have is the derailleur hanger. The design of it positions the derailleur extremely far back so it makes for very odd geometry for the derailleur in relation to the cassette. I have to run the derailleur without the B-tension screw and still only gears 4-10 work perfectly. Even a top World Cup mechanic could not figure it out. It was recommended by another mechanic to take a Dremmel tool to the hanger to bring it in more forward! Since I only really use 4-10 I have not worried about it. When all the same drivetrain was on the 88 it worked flawlessly and effortlessly in all gears. I'm running all new X.0 10sp shifter, X.9 Type 2 short 10sp derailleur so parts aren't the prob. I fully feel it is the odd rearward positioning of the hanger. Otherwise, this frame is perfect.
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