2015 GT Helion Comp
2015 GT Helion Comp is a 27.5" trail mountain bike built around a 6061-T6 hydroformed aluminum frame with 110mm travel and Shimano Deore 9-speed drivetrain.
Description
Calling all weekend-warriors. The Helion is your express ticket to the trailhead in a cost-conscious package. With no compromise in geometry, you can guarantee that post-ride beers and Nutella are not a thing of the past.
KEY FEATURES
COR XC Philosophy, 6061-T6 Hydroformed Aluminum frame, 110mm travel, Angle Optimized Suspension, 27.5” specific, integrated tapered head tube 1” 1/8 to 1” ½ and 12 x 142mm Maxle Dropouts
X-Fusion 02 RL Rear Shock, w/ Remote lock out & rebound adjust
SR Suntour Raidon XC RL-R 27.5 (110mm), Air spring, 9mm QR, w/ Remote lockout & rebound adjust, tapered alloy steerer
Shimano FC-M430 crankset, 44/32/22
Shimano Deore 9 spd
Shimano BR-M447 hydraulic brakes w/ Metallic Pads, centerlock 180mm (F&R)
Alex GXD22 , Double wall 32h w/ All Terra High Flange Alloy centerlock disc, sealed bearing (F: 9mm Thru Axle; R: 12x142mm Thru Axle)
WTB BeeLine 27.5”x2.2” Tires
Geometry

Technical specification
Geometry
- Sizes
- XS, S, M, L, XL
Frame & Fork
- Frame
- COR XC Philosophy, 6061-T6 Hydroformed Aluminum Frame, 130mm Travel Independent Drivetrain® 27.5 AOS Suspension System w/Forged Linkage, Pivots, 1 1/8"-1 1/2" Integrated Head Tube, and 12 x 142mm Maxle Dropouts
- Fork
- Raidon XC RL-R 27.5", 110mm Travel, Air Spring. QR Dropout, w/ Remote Lockout & Rebound Adjust, Tapered Alloy Steerer
Drivetrain
- Crankset
- Shimano FC-M430, 44/32/22T
- Bottom bracket
- Shimano BB-ES25, Octalink
- Chain
- KMC Z99
- Freewheel
- SRAM PG920, 11-34T, 9-speed
- Shifters
- Shimano Alivio, SL-M4000
- Front derailleur
- Shimano SLX, FD-M661-D
- Rear derailleur
- Shimano SLX, RD-M662-SGS
Wheels
- Rims
- Alex GXD22, Double Wall 32H
- Tires
- WTB BeeLine 27.5x2.2"
- Spokes
- 14G Stainless, Black
- Hubs
- All Terra Alloy Centerlock Disc, w/ Quick Release
- Rear hub
- All Terra Alloy Cassette Centerlock Disc, w/ Quick Release
Cockpit & contact
- Handlebar
- All Terra AL6061 DB, 740mm
- Stem
- All Terra, 1-1/8" Threadless, 6° Rise, 31.8mm Clamp, 80mm
- Grips
- GT Statement Single Lock-on Grips
- Headset
- Orbit C-40-ACB
- Saddle
- All Terra Colorado
- Seat post
- All Terra 2-bolt, 31.6x400mm
- Seatpost clamp
- All Terra Alloy QR, 34.9mm
- Colour
- Gray
Brakes
- Brakes
- Shimano BR-M355 Hydraulic. w/ 180mm Centerlock Rotor
- Brake levers
- Shimano BR-M355
Suspension
- Rear shock
- X-Fusion 02 RL, 6.5"x1.5" Air Shock, w/ Rebound Adjust & Remote Lockout








