Trek is repositioning the Session: The completely revised suspension design, the larger selection of wheel sizes and a great deal of adaptability characterize the racer. The most obvious innovation on the new downhill flagship is the suspension with a high deflection point, which allows the axle path to run backwards. This enables the rear wheel to move with the backward forces generated by bumps instead of against them. According to the US manufacturer, this results in a more sensitive chassis on the trail, which maintains forward dynamics better and offers more grip.

The rearward axle path also increases the distance between the sprockets and chainring when the damper is compressed. This chain extension creates tension that rides the pedal kickback. To counteract the chain extension and the resulting pedal kickback, a pulley on the new Session, also known as an idler pulley, guides the upper part of the chain close to the high deflection point.

A lot of adjustability

As with previous Session models, the new Session also comes with an Active Braking Pivot and adjustable geometry via the Mino Link. What is new, however, is a Mino Link for adjusting the shock progression. This allows riders to switch between a stiffer 25 percent progression for racing and a more forgiving 20 percent progression for the bike park.

The new Session rolls on 29-inch wheels as standard, but is also compatible with 27.5-inch wheels. If you like it more playful and agile, you can ride a mixed configuration with 29-inch front and 27.5-inch rear wheels.

Reach-based sizes and size-specific chainstay length

In the new Session, sizing is based on reach instead of seat tube length. This allows riders to find the size that perfectly suits their riding style and intended use. If you want more stability at high speeds, opt for the next larger frame, and if maneuverability is your main concern, choose the next smaller frame.

And mechanics will be delighted: the cables can be routed internally or externally, depending on preference. The Session is available as a complete bike, Session 8 and Session 9, and as a frameset including shock and headset spacer. While the complete bikes roll on 29er wheels, the frameset can be fitted with 29-inch wheels, 27.5-inch wheels or 29-inch front and 27.5-inch rear wheels. The new Session is available now.

trekbikes.com