Item # qgtbum20sw12zz-gt-bmx-bikes
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  • 20in
  • Freestyle
  • Chromoly
Top Tube Length: 20.5
Rear End Length: 14
Bottom Bracket: American
Weight: 27 lbs

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Description: GT Bump BMX Bike 20in

The GT Bump BMX Bike is a BMX bicycle made for dirt trails and the fun of jumping dirt piles all day. Add a set of pegs, and it'll please you on the streets as well, and give you all the fun you crave having. Its strong chromoly frame is built to take a beating and its Tektro XL320 alloy brakes won't let you down when it's time to stop. Whether you're a beginner or a long-time rider, the GT Bump BMX bike will keep up with you, and your fun.

Key Features of the GT Bump BMX Bike 20":
  • Frame: NEW Straight Gauge, 3 Tubes Cro Mo , (Tt, St, DT), Dumped C/S, Triple Triangle, 14mm Dropouts, S/S Mounted Brake Mounts, W/ Removable Rotor Tabs,
  • Front Suspension: GT, Cro-Mo Steerer/ Hi-Ten, 31.8-28.6 Taper, 3/8, 1 1/8"
  • Crankset: GT Cro-Mo 3 Pcs, 8T, 175mm 25T
  • Wheels/Hubs: GT AL Cassette Sealed 3/8F, 14mmr 32F, 36R Hole
  • Brakes: Tektro FX340R


NOTE: All complete bikes are sold and delivered partially assembled. Final assembly should be done by a qualified BMX technician. Failure to have the bike assembled by a qualified technician may void the warranty and could result in damage and/or injury if not assembled correctly. As an industry standard, some bikes might have minor cosmetic blemishes due to the nature of shipping.

Customer Reviews | Add Your Review!

Browse 8 questions and 9 answers
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Why did you choose this? Store
this is a great bike at an even better price..
Scott M on Feb 17, 2014
because its good for doing tricks
Millie M on Nov 22, 2013
I'm 5'9 . This is my first bmx bike. I've been learning basic tricks on a friends bike. Is this bike durable? And does it have half inch link chains ?
Jake T on Nov 7, 2013
Best Answer: The Gt bump is a Great bike to start off on learning simple bmxtricks. It does not however come with a half link chain. The chain i believe is a standard 1/8th linked chain.
Reply · Report · Lannie EStaff on Nov 25, 2013
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how light?
A shopper on Jul 12, 2013
Best Answer: The GT Bump BMX Bike weighs approximately 26.5lbs
Reply · Report · Roy MStaff on Jul 15, 2013
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Is the bottom bracket sealed?
Phillip C on Jul 23, 2014
Best Answer: The bottom bracket is not sealed. That is the only thing on this bike that isn't sealed. And it is a quick and painless upgrade at your local bike shop. Its what i did when i received this bike.
Reply · Report · Nicholas G on Jul 23, 2014
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well i have a couple questions, why are some of the gt bumps priced 400 and this one 260, they are all the same bike correct ? and in the description it doesnt tell if the rims are double wall or single, or if the handlebars are cro-mo or hi-ten, other sites say that the more expensive bump come with alienation double wall rims standard issue, is this true with this priced bump, im torn between this bike and the framed attack ltd,the framed attack is cheaper with cro-mo frame, fork, and bars, also double wall rims, but i like the look of this bike better, it also doesnt tell if the forks are cro-mo, please help me make the right decision, thank you.
A shopper on Aug 3, 2014
Best Answer: There are different models from different years. The less expensive ones are from 2012 and the more expensive are from 2013 and 2014. The newer ones will definitely be better because they'll have the best bike technology. The rims I'm almost positive are double walled and the handlebar is definitely cro-mo.
Reply · Report · AJ L on Aug 21, 2014
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this bike is light right ? like not tour de france light , but i just want to know its not a heavy mother trucker
luke12345 on Jul 28, 2014
Best Answer: Yo Luke,

The GT Bump BMX Bike is a super solid bike that only weighs 26.8 lbs. Light weight for how much of a beating it can handle.
Reply · Report · Matt GStaff on Jul 29, 2014
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What is the width of the tire??
ctwomey on Jul 1, 2014
Best Answer: Which tire are you asking about?
Reply · Report · Matt GStaff on Jul 14, 2014
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Is this good for dirt?
Sean G on Dec 31, 2013
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