With that said, the RC4 has low-speed compression tuning abilities that allow the 2011 Session to keep a lively during bermed corners and jumps, so you can get that "best of both worlds" feel between lively and playful, yet aggressive and big bump-eating. The 2011 Session delivers that because of the custom-tuned shock. They're out for blood, speed and no-holds-barred runs. This would make sense with the requests of the TWR team. The 2011 Session excelled when the going got rough. At speed and on the very rough stuff, however, my 2010 Session can dance around a bit. My 2010 Session is definitely stable and excels in that "bike park" environment where trails are a little more manicured and predictable. The 2011 Session 88 felt generally more stable and damped, especially when the speed picked up. I could notice this difference between my current Session set up (which has a Vivid Air) and the new Session 88. The short description of the tune is that the shock allows for more mid-stroke control, creating a more consistent and linear suspension curve.something that TWR desired on their bikes. Jose Gonzalez and his ACG crew developed the custom-tuned rear shock in conjunction with Fox Racing Shox, based on input from the Trek World Racing team. The shock is what you'll notice while you're riding the bike. These features (in my mind) take a back seat to the development of the custom-tuned Fox DHX RC4 shock that only comes on the 2011 Session 88. The tubeset is new and there has been a lot of thought put into the tube shapes and protective elements that are built into the new frame. The frame has some unqiue details that make it stand out. The little things add up at the World Cup level and Trek listened to their TWR team to develop this new frame and rear shock. What makes the 2011 Session 88 so special are some important details that show the progression and constant refinement Trek is putting into their bikes. There is no difference with how or where the rear wheel moves or how the angles work. 'Alpha Platinum' aluminium, 210mm (8.I think it's important to note that the actual suspension design, pivot placements, geometry and mechanics of the 2010 Session 8 and 88 are identical to the 2011 Session 88. RockShox BoXXer RC coil, 200mm (7.9in) travel, firm spring The Trek’s higher centre of gravity makes pushing hard into turns feel like more of a gamble too, despite the impressive grip of the high-volume Bontrager G4 tyres. Even then, the high bottom bracket and short front centre meant the ride was far less stable or confidence-inspiring when things got fast or technical. I ended up swapping out the bar for something taller and with less backsweep, as well as putting a 5mm spacer under the stem. Plus things felt precarious in steep or technical sections. With a high-ish bottom bracket, the bar feels even lower when riding. At 6ft 3in, I was practically rubbing my knees on the bar when I leaned forward to pedal. Not only is the reach noticeably short, but the minimal-rise bar (15mm) sits low on the negative-rise stem. In fact, I found myself double-checking that Trek had sent the XL frame I’d requested. The Session 8 has solid DT Swiss wheels, Bontrager tyres and SRAM drivetrain parts, but its BoXXer RC coil fork houses RockShox’s more basic Motion Control damper. The SRAM Guide R brakes were also disappointing, lacking in power and developing a spongy feel after a few muddy rides. To be blunt, you don’t get all that much for your money. Trek calls this set-up ‘Full Floater’ and uses it to tweak the leverage curve so that the Session provides 210mm of slightly progressive travel.Ī ‘Mino Link’ chip allows the bottom-bracket height to be adjusted by 10mm and the head angle by half a degree. The shock is compressed between the upper rocker link and the forward tips of the chainstays. Trek’s ABP (Active Braking Pivot) suspension system is essentially a single-pivot with linkage-driven shock design, except it uses a rear-axle pivot to reduce the effect of braking on the suspension action.
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