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GT
Helion Carbon Expert 9R Complete Mountain Bike - 2017

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For many of us, the name GT brings back memories of scouring the neighborhood on burly BMX bikes in search of the best curb jumps and parkside playgrounds. Now that we're all grown up and looking for a new ride, the 2017 GT Helion Carbon Expert 9R Complete Mountain Bike blends that playful abandon we so sorely miss with modern technology built to handle full-sized trails. Possibly best conceptualized as a whip-fast 29er XC bike that can push into burlier territory, the Helion's 110mm of rear travel and 100mm travel up front soften the bumps just enough without feeling too squishy to go fast.


GT crafts the Helion Carbon with its Force Optimized Construction (FOC) Ultra carbon, which is a weave of lightweight and exceptionally strong high-modulus carbon fibers that results in a balance of lateral rigidity, impact resilience, and minimal weight. This translates to real life as a confident, capable, and responsive ride.


The Helion's Angle Optimized Suspension (AOS) utilizes a high-mount pivot that helps boost the suspension's shock absorbing capabilities. It's paired with GT's PathLink, which cradles the crankset to limit power-sapping chain extension. Essentially, AOS isolates rear axle travel from pedaling input, which means the Helion can charge over singletrack and jump off the line without any disheartening pedal bob.


Details

  • A full-suspension cross-country bike
  • 4.3in of Angle Optimized suspension
  • Moderate geometry balances climbing speed and descending prowess
  • Carbon construction blends low weight and high stiffness
  • Shimano drivetrain provides precise gear shifts
  • Item #GTE001U
Frame Material
FOC Ultra Carbon
Suspension
Angle Optimized Suspension
Rear Shock
Fox Performance Elite Float
Rear Travel
110mm
Fork
Fox Performance 32 Float SC
Front Travel
100mm
Headset
1-1/8 - 1-1/2 in FSA Orbit C-40-B
Shifters
Shimano SLX rapid fire
Front Derailleur
Shimano SLX
Rear Derailleur
Shimano Deore XT Shadow Plus SGS
Crankset
36 / 26t Race Face Ride
Bottom Bracket
Race Face
Cassette
11 - 42t Shimano SLX 11-speed
Chain
KMC X11
Brakeset
Shimano SLX M7000
Brake Type
hydraulic disc
Rotors
180 / 180mm RT-70 centerlock
Handlebar
Race Face Ride, low rise
Handlebar Width
760mm
Grips
GT Statement Single lock-on
Stem
Race Face Ride 35
Stem Length
80mm
Saddle
WTB Silverado Race SL, Cromoly Rail
Seatpost
Race Face Ride
Seatpost Diameter
31.6mm
Wheelset
WTB STS i23 29in, tubeless compatible
Hubs
Shimano SLX 7010 centerlock disc
Front Axle
15 x 110mm Boost thru-axle
Rear Axle
12 x 142mm thru-axle
Tires
Schwalbe Racing Ralph Snakeskin TL
Tire Size
[front] 29 x 2.25in, [rear] 29 x 2.0in
Recommended Use
cross-country
Manufacturer Warranty
lifetime on frame

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