Mongoose Fireball Dirt Jump Bike Black


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SKU: BKMM21F21 Sold out

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The Fireball is Mongoose pro rider Greg Watts’ weapon of choice whether he’s competing on the world’s most insane slope style courses or riding his backyard trails at home. With durable Tectonic T1 aluminum construction and a tapered head tube, the Fireball is ready for any dirt jumps or big-wheeled street riding you can throw at it. Suggested for riders 5'2" to 6'0".

Bottom bracket: Samox, cartridge, 3-piece, threaded 68 mm shell
Brakes: Mongoose, mechanical, aluminum, 160 mm rotor
Chain: KMC Z99
Crankset: Samox CW-1448M, aluminum, 36T
Derailleur rear: Shimano Altus RD-M2000
Fork: RST DIRT-T, 26", aluminum steerer, 9 mm x 100 mm, thru axle, 100 mm travel
Frame: Tectonic T1, aluminum, 26" dirt jump geometry, 9 mm x 135 mm dropout, replaceable hanger
Frame size: 11.5in
Freewheel: Sunrace, 9-speed, 11-36T
Grip: Mongoose Hive, single density
Handlebar: Xposure double-butted, aluminum, 751 mm width, 31 mm rise, 31.8 mm clamp
Handlebar stem: Xposure melt forged aluminum, threadless, 40 mm, 7°, 31.8 mm clamp
Headset: Threadless, ZS44/ZS44, retainer bearing
Hubs: Xposure, aluminum, ball bearing, 9 mm x 135 mm, 32H, 6-bolt
Pedals: Mongoose, nylon
Rim: Xposure, aluminum double wall, 26 mm ID, 32H
Saddle: Mongoose Dirt jump, integrated rails
Season: 2021
Seat post: Xposure, aluminum, 201 mm, integrated saddle, 27.2 mm
Shifters: Shimano Altus SL-2000, 9
Spokes: 14G, steel
Tyres: Kenda Small Block, 26 in x 2.35 in, wire bead
Wheel size: 26"


Mongoose have been manufacturing performance bicycles since 1974. Founded in a So Cal garage, Mongoose Bikes has always been an innovator. From their current crop of BMX, Mountain and pavement bikes, Mongoose is still synonymous with bicycle performance.

Mongoose designers aren't wasting time watching reruns on ESPN2 - they're out testing their new designs at the park, on the track and on the hill. It's what drives them to cook things up like their Front Porch head tube, which lets you fine-tune the handling on their Black Diamond series mountain bikes, or Freedrive suspension technology, which eliminates pedal bob and gives you super-efficient full suspension. Experience that ultimately leads to better bikes for you. Mongoose bicycles don't just push the limits. They set new ones.

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Please note, due to challenges in the product supply chain, bike specifications are subject to change without notice. Specifications listed below may not match exactly as shown in the photo.

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