GT BUMP 2011 VS Diamondback OPTION 2009 specs comparison
GT Bump
General Infos| Model | Bump |
| Manufacturer | GT |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
- matte green -White |
| Sizes |
- Not available |
| Sizes |
- Not available |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 2.1 (inches) Kenda Ko-Rolla Front: 20 X 2.125 (inches) Kenda K-Rad |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Unavailable Front and Tektro 273A Rear Levers Unavailable Front and Tektro FX340R Rear Brakes |
| Hubs for disc brakes | Rear: GT Alloy Front: GT Aluminum |
| Rims manufacturer | 32-hole and 36-hole Alienation PBR |
| Spoke nipples type | Brass |
| Spoke wheel | 14ga. |
Frame and Body Specs
| Frame materials | CroMo |
| Frame type | Steel |
| Handlebar construction | GT Pro Steel |
| Handlebar extender | Optional |
| Handlebar stem details | GT Freestyle Drop |
| Headset size | 1 1/8 (inches) Integrated |
Gearing Specifications
| Bicycle chain | KMC Z510 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Sealed Bearing |
| Crankset parts and sizes | 25t Teeth CroMO 3 Piece |
| Gear shift levers | Not Available |
| Rear gear set | 9 teeth c |
GT Bump Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Steel |
| Fork type | Cromo |
Other Specs of GT Bump
| Component group sets | BMX Mix |
| Pedals details | GT Dirt and Street Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Pivotal Street Design |
| Seat post extension | 25.4 (millimeters) Diameter Pivotal |
Diamondback Option
General Infos| Model | Option |
| Manufacturer | Diamondback |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-Silver |
| Sizes |
- 19.5 TT (inches) |
Wheels And Breaking System
| Bike front tire | 20 X 2.00 (inches) DB Cellblock |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro 2 Finger Levers Tektro 907 U-brake Brakes |
| Hubs for disc brakes | Rear: Cassette Driver Front: Steel 14 (millimeters) Axle |
| Rims manufacturer | 48-hole Alloy |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Hi-Ten 2-piece |
| Handlebar extender | Optional |
| Handlebar stem details | Alloy 4-bolt |
| Headset size | 1 1/8 (inches) FSA Threadless |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC Z410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Loose Ball Mid |
| Crankset parts and sizes | 28 Teeth 3-Piece Tubular Chromoly 175 (millimeters) |
| Gear shift levers | Not Available |
| Rear gear set | 10 Teeth 1-speed |
Diamondback Option Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown High-tensile Steel |
| Fork type | Not Available |
Other Specs of Diamondback Option
| Component group sets | BMX |
| Pedals details | DB Sound Alloy With Traction Pins |
| Rear shock absorber | Not Available |
| Saddle seat | DB Driver's Seat |
| Seat post extension | 25.4 (millimeters) Diameter Steel Micro-adjust |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Bump bike manual
- Find All parts, tires and accessories of GT Bump BMX here
- Get your Diamondback Option manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Diamondback Option BMX here