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Sorry, this GT Bicycles Helion Carbon Mountain Bike - 2015, Medium has been sold.

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GT Bicycles Helion Carbon Mountain Bike - 2015, Medium

Item #BMT30127
Condition: Certified Pre-Owned
Fit Range: 5'6" - 5'10"
Regular price

Trade In
Every Certified Pre-Owned bike passes our 141-point inspection
  • Frame integrity verified
  • All components inspected
  • Drivetrain cleaned and tuned
  • Suspension adjusted
  • Wheels trued

Our RideFast shipping means this bike gets to you quickly and securely. Domestic US ground rates are a flat $135 for regular bikes or $150 for e-bikes.

Quick Assembly
  • Bikes arrive tuned and mostly pre-assembled
  • Torque tool & video guide included
  • Get riding in 15 minutes
Canadian Customers

Please note that any duties, taxes, or surcharges as required by Canadian customs and provincial authorities will be the buyer's responsibility. Shipping to Canadian addresses may take longer than expected due to customs.

30-Day Returns

If this bike isn't perfect for you, our Ride Guides will help you find the right one.

More details More details icon
  • Shimano XT M780 Alloy crankset w/ Stages Gen 2 Power Meter on the left crank arm
  • New RockShox Reba RL fork
Master Mechanic’s Notes
  • Rear suspension has been professionally serviced by our in-house suspension experts and is ready to ride
  • Replaced front inner tube
  • Light scratches on the top tube & down tube
  • Light scratches on the rear derailleur
  • Moderate paint chips on the non-drive side upper swingarm bolt
  • Please Note: Power meters are typically aftermarket upgrades, and we cannot guarantee battery life, accuracy, or calibration
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Original MSRP $5,420.00
Year 2015
Brand GT
Model Helion Carbon
Size Medium
Frame Material Carbon Fiber
Drivetrain Shimano, 1x11 spd
Weight 28 lbs 2 oz
Fork RockShox Reba RL
Fork Travel 120mm
Rear Shock FOX Factory Series FLOAT CTD
Rear Shock Travel 110mm
Brakes Shimano XT M8000, Disc Brakes - Hydraulic
Shifters Shimano XT M8000, Mechanical
Rear Derailleur Shimano XT M8000
Bottom Bracket Shell Threaded
Crankset Shimano XT M780 Alloy w/ Stages Gen 2 Power Meter , 36t, 175mm
Cassette Shimano XT M8000, 11-46t
Chain Shimano
Handlebar Race Face Alloy, 750mm
Headset FSA
Stem Easton EA90 Alloy, 31.8mm x 90mm, 8°
Seatpost Race Face Alloy, 31.6mm
Saddle Prologo NDR, T 4.0
Front Axle Spacing 15x100mm (Thru-Axle)
Rear Axle Spacing 12x142mm
Wheelset Easton Haven Disc Aluminum Tubeless Compatible, Easton MI-112/MI-121
Front Tire Maxxis Minion DHF 3C MaxxTerra EXO TR, 27.5" x 2.3"
Rear Tire Maxxis Minion DHR II 3C MaxxTerra EXO+ TR, 27.5" x 2.6"
Tire Type Tubeless
Tubeless Compatibility Wheels are tubeless compatible
Pedals Sold separately
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Bike geometry chart
Inspected. Tested. Trusted.

What is CPO?

CPO bikes are gently ridden bikes that have been meticulously inspected, restored and serviced. Every CPO bike is cleaned, tuned and tested in our top-of-the-line Colorado headquarters. Road, mountain, ebike or gravel, TPC services each bike over 8 phases and 141 points of inspection.

Bikes are meant
to be used.