How to Choose Mountain Bikes

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Find what makes you happy, ride what sets you free. A well-rounded hardtail, the GT Avalanche Comp mountain bike is ideal for riders looking to fast-track their learning curve and love for pedaling.
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Best Use | Mountain Biking |
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Mountain Bike Style | Trail |
Frame | GT 6061 T6 aluminum Triple Triangle with floating seatstays/Internal Cable Routing, Dropper Post Routing/Boost 141 Forged Drop-outs w/ Disc Brake Mounts/Zero Stack Tapered 1 1/8"- 1.5" Head Tube |
Bike Suspension | Front Suspension |
Fork | SR Suntour XCM-DS, 100mm, Hydraulic Lockout and Preload adjust, Coil |
Fork Travel | 100 millimeters |
Crankset | Prowheel Charm, 32T |
Bottom Bracket | Cartridge, Square Taper |
Shifters | microSHIFT M850, 10-speed |
Rear Derailleur | microSHIFT RD-M6205GM |
Rear Cogs | 11-42T, 10-speed |
Number of Gears | 10 gear(s) |
Brake Type | Hydraulic Disc Brake |
Brakes | Tektro M275 Hydro Disc, 160/160 mm Rotors |
Brake Levers | Tektro M275 Hydro Disc |
Rims | WTB SX19, 32 h |
Front Hub | Formula,100 mm quick-release |
Rear Hub | Formula,141 mm quick-release |
Wheel Size | 29 inches |
Tires | WTB Ranger Comp, 27.5/29 x 2.25 in., DNA Compound |
Tire Width | 2.25 inches |
Handlebar Shape | Riser Bar |
Handlebar | GT All Terra Alloy riser, 25 mm rise, 8 deg. sweep, 6 deg. rise, 720 mm width |
Stem | GT All Terra, 6061 alloy, 31.8 mm, 8 deg. |
Seat Post | GT All-Terra Micro Adjust alloy, 30.9 mm |
Saddle | GT MTB |
Pedals | GT Slim Line Flat Pedal |
Headset | Semi-integrated, Sealed Cartridge, Tapered |
Chain | KMC X10, 10-speed |
Weight | Unavailable |
Gender | Unisex |
M | L | XL | |
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Reach | 42.5 | 45 | 47.5 |
Stack | 63.7 | 64.6 | 65.6 |
Standover Height | 73 | 76 | 79 |
Head Tube Length | 11.5 | 12.5 | 13.5 |
Head Tube Angle (degrees) | 67.5 | 67.5 | 67.5 |
Seat Tube Angle (degrees) | 74.5 | 74.5 | 74.5 |
Bottom Bracket Height | 31.4 | 31.4 | 31.4 |
Wheelbase | 115.3 | 118.2 | 121.1 |
Chainstay | 44.5 | 44.5 | 44.5 |
Measurements are stated in millimeters unless otherwise indicated.
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It took me a long time to decide on this bike as it was my first MTB bike and I wanted to get something that would allow me to do lots without breaking the bank. Here are the features that make this bike awesome: 1. 1x drive train is easy to shift and cuts down on complicated shifting. It climbs well and gets up to speed nicely. I have however found a climb where a lower gear would have been nice, and I have also reached a speed where a higher gear would have been nice, but neither of these speak badly on the drivetrain, they just speak to what it should be used for. Its and entry level MTB with commuting potential. 2. The headtube is a tapered head tube meaning you can replace the fork with a nice fork in the future. (ie 120mm air fork) 3. The wiring is routed through the down tube! clean look. It also has an access hole for the addition of a dropper post in the future (great opportunity for upgrade just like the head tube). 4. Hydraulic disk brakes are the standard for MTB now, and as a bigger guy I did not want to risk riding anything without them. 5. 29er wheels that help you soak up bumps, pick up speed, and get over the gnarly terrain. Here is how this bike rides (from a beginner's perspective): I have had a lot of fun with this bike so far. It has been able to handle the rocky technical terrain of the lunch loops trail head in GJ while also tackling the flowy tracks of the north Fruita dessert. This bike is a hard tail, so it is a choppier ride when you hit the chunk, but what it loses in suspension it makes up for in its ability to put the power down and climb some pretty steep stuff. The bike is responsive and easy to handle. The shifting is seamless and quite satisfying. The brakes do their job well and allow for nice modulation especially on techy downhills. It can feel a bit sketchy when punching it around loose corners as the WTB ranger tires that come with the bike have less aggressive lugs. Things to think about before buying this bike: 1. the wheel width of the wheels that come with this bike are 19mm which is rather narrow and limits you to tire widths of about 2.3in at the most. But there are good 2.3 tire options out there. 2. The suspension fork is on the smaller side and lacks the performance of an air fork. 3. The pedals are plastic (including the lugs that hold your feet on). The lugs of my pedals broke off on the first technical ride I had. Strongly consider replacing these right away with pedals that have metal lugs) 4. The disc brake rotors are not too large. (They seem to do the job for me, but I haven't taken this bike to a downhill park yet). All in all, I love this bike so far. The price is low (in the world of mountain bikes sheesh). It gives you everything you need to start tackling your local trials while offering the upgradability for the future as your skills and needs progress. I have had a lot of fun planning the upgrades and color schemes I plan to make to this bike.