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  1. #1
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    Mongoose Amasa Comp vs. GT Avalanche 2.0

    I know you guys get a lot of these questions, but I can't make up my mind about these 2 bikes. I hope you can help me pull the trigger. Thanks!

    Bike #1 GT Avalanche 2.0 Disk 2008 $400.00
    * Brakes:
    Tektro Aquila, forged caliper with dial adjust pad centering; Alloy with reach adjust for linear pull brakes
    * Nipples:
    Brass CP
    * Spokes:
    Stainless steel 14 gauge
    * Rear Hub:
    Shimano 8 speed Cassette with QR for Disc
    * Tires:
    Kenda Nevegal, 26 x 2.1
    * Front Hub:
    Alloy QR for Disc
    * Rims:
    Alloy double wall ATB
    * Chain:
    IG-31
    * Rear Cogs:
    Shimano Eight Speed, 11-32 ratio
    * Shifters:
    Shimano Alivio 8 speed rapidfire shifters
    * Rear Derailleur:
    Deore M-531 lo-normal
    * Front Derailleur:
    Shimano M -330
    * Pedals:
    ATB Resin body, Steel cage, toe clip compatible
    * Bearings:
    Shimano Octalink Cartridge Sealed
    * Crankset:
    Shimano FC-M341 42/32/22, octalink interface
    * Fork:
    Suntour XCR-LO hydraulic fork with cr-mo 30 mm stanchions, magnesium lowers, preload adjust, 100 mm of travel and lock out
    * Frame:
    GT Triple Triangle design 6061 butted aluminum with hydroformed downtube, zero stack headtube. Disc compatible with removeable der. Hanger
    * Handlebar:
    Alum. 20 mm Rise, 6 degree bend, anatomically sized
    * Stem:
    GT ATB, threadless 10 degree rise with four bolt alum face plate
    * Grips:
    GT Dual Density ATB
    * Headset:
    Tange Seiki system for 1 1/8"
    * Saddle:
    WTB Speed V
    * Seat Post:
    Alloy Micro adjust
    * Seat Clamp:
    GT Forged Alum QR

    Bike #2
    Mongoose Amasa 2009 $500.00
    # Frame: Flat Top Tube Technologies All Mountain 6061 Alloy
    # Fork: Suntour MAG 32-LOD 120mm travel, magnesium lowers, 32mm aluminum stanchions, hydro damping and lock out
    # Crankset: FSA ALPHA DRIVE 44/32/22T ISIS
    # Bottom Bracket: FSA ISIS cartridge
    # Pedals: Mongoose Alloy platform
    # Front Derailleur: Suntour XCR414
    # Rear Derailleur: SRAM X-5
    # Shifters: SRAM X5 triggers 27 speed
    # Freewheel: SRAM PG-950 11-32 9-speed Cassette
    # Chain: KMC Z-9200
    # Rims: ALEX TD24 Double Wall, Disc specific
    # Front Hub: Formula Disc Alloy QR 32H
    # Rear Hub: Formula Disc Alloy QR and freehub 32H
    # Spokes: 14G stainless
    # Brake Levers: ProMax hydraulic
    # Handlebar: Mongoose alloy riser 31.8x30x685 mm
    # Stem: Mongoose alloy 31.8 x 90 mm (S & M) 110 mm (L)
    # Grips: Mongoose lock-on
    # Saddle: WTB Pure V Sport
    # Seat Post: Mongoose Alloy w/ micro adjust clamp

  2. #2
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    Reputation: borregokid's Avatar
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    The big difference between the bikes is the Mongoose has a 27 speed drive train and the GT only has 24 speeds. The Mongoose is also built up with a heavier shock and heavier wheels for freeriding around town and dirt jumping whereas the GT is set up as a recreational XC bike. A better choice might be to take a look at a 27 speed XC bike. Performance had a GT Avalanche with rim brakes and 27 speeds for $500. A parking lot test of the two bikes would probably help you decide. If I had to pick between the two I would go with the 27 speed Mongoose.

  3. #3
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    I think the Mongoose has a much nicer spec for $100 more, well worth the price jump for the fork alone. Borregokid is right that the two aren't completely similar, but at that price point all the bikes are going to have a recreational/trail bias. I think you could grow a lot more with the Mongoose.

    All this is predicated on proper fit, always buy the bike that fits.

    David B.

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