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2012 Mongoose Fireball 26" Bike (discontinued)

Average User Rating: (Good)
2012 Mongoose Fireball 26" Bike 2012 Mongoose Fireball 26" Bike
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Need more info? View our Dirt Jump / Slopestyle Mountain Bikes buyer's guide.

Good Value, some great budget components, some junk

The Good:

Chain guide, tires, frame geometry

The Bad:

seat, brakes

Overall Review:

I bought this because it's my third bike and I ride in two countries and needed one to use for about a month each year.

The good:

  • MRP chain guide works pretty flawlessly
  • Kenda K-rads are great tires
  • Frame geometry is great but chainstays could be shorter

The OK:

  • SRAM rear derailleur OK, but better if short cage
  • Crank works fine, square taper is reliable
  • Fork is bouncy and fun but has no adjust and bottoms and tops out really easily
  • Wheels are heavy and don't have sealed bearings, but are reliable
  • 710mm steel bar and short stem

The Bad:

  • Tektro brakes overheat on the slightest hill
  • Seat rails bend easily, seat is garbage
  • Frame cracked on seat post

Bargain basement bike, not bad for the money, can do it all. Don't expect much as this price point would suit a kid aged 14-16 really well.


Product Mongoose Fireball 26" Bike
Model Year 2012
Riding Type Dirt Jump / Slopestyle
Rider Unisex
Sizes and Geometry
Size 26"
Top Tube Length 580
Head Tube Angle 69°
Head Tube Length 115
Seat Tube Angle 70
Seat Tube Length 325
Bottom Bracket Height 298
Chainstay Length 410
Wheelbase 1034
Standover 661
Wheel Size
Frame Material Aluminum
Frame Material Details Mongoose DJ Aluminum Hardtail w/ vertical dropout
Rear Travel Hardtail
Rear Shock
Fork RST Dirt-T w/100mm Travel
Fork Travel 100mm
Head Tube Diameter
Headset Threadless, 1 1/8"
Handlebar Steel DJ, 31.8, 30mm rise
Stem Alloy DJ, 31.8
Brakes Tektro Novela Mechanical Disc, 160mm rotor (F/R)
Brake Levers Promax Alloy
Shifters SRAM X4 Trigger
Front Derailleur
Rear Derailleur SRAM X4
Cranks Suntour Duro w/ MRP chainguide, 36t
Bottom Bracket Shimano BB-ES25 Octalink
Pedals Plastic Platform with reflector
Chain KMC Z72, 8-speed
Cassette Shimano HG30, 11-32t, 8-speed
Rims Alex TD25 doublewall 36 Hole
Hubs KT Alloy QR Disc 36 Hole
Spokes 14G Stainless
Tires Kenda K-Rad, 26 x 2.3
Saddle Mongoose DJ
Seatpost Diameter
Seatpost Clamp
Rear Dropout / Hub Dimensions
Max. Tire Size
Bottle Cage Mounts
Colors Matte Black, Matte Cyan
Weight N/A
Price $600
More Info Mongoose website

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