Project Flyweight: The 29lb Trek Session 9.9 DH Bike
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Weighing in at approximately 5 pounds*, Trek's Session 9.9 Carbon DH frame has opened the doors to new possibilities in the light downhill bike realm.
To illustrate just how easy it is to achieve an incredibly light downhill bike based around the Session 9.9 frame, Trek pieced together this bike using readily available components.
The complete build weighs just 28 pounds 13 ounces (13.07 kg).
Vital MTB was given the opportunity to ride the Session 9.9 for a full day at Whistler Bike Park, and we'll have an in-depth feature available for your eager eyes soon. Update: Read about our trip to Whistler on the Trek Session 9.9.
SPECIFICATIONS: FORK / Rock Shox Boxxer Keronite
SHOCK / Vivid Air
CRANK / SRAM XO carbon
REAR DERAILLEUR / XO DH
BRAKES / SRAM XX
SHIFTERS / SRAM XX
CASSETTE / SRAM Red
CHAINGUIDE / MRP G2 SL carbon
SADDLE / Bontrager Evoke carbon railed saddle
SEATPOST / Bontrager XXX Lite
HANDLEBAR / Bontrager Carbon 820mm handlebar
STEM / Point One direct mount
GRIPS / Bontrager Rhythm
WHEELS / DT 240 hubs, Bontrager Rhythm scandium 32 hole rims (TWR)
TIRES / Maxxis Minions EXO 2.5 tubeless
*The published frame weight is 7.2 pounds with a Fox DHX RC4 rear shock, which we know weighs ~2.25 pounds with a standard steel spring. Credit: Trek/Sterling Lorence