GT BUMP 2011 VS Diamondback VIPER 1997 specs comparison
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➜ GT Bump price
➜ Diamondback Viper price
GT Bump
General Infos| Model | Bump |
| Manufacturer | GT |
| Year of production | 2011 |
| Current price | 🛒 View Price → |
| 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-RollaFront: 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 LeversUnavailable Front and Tektro FX340R Rear Brakes |
| Hubs for disc brakes | Rear: GT AlloyFront: GT Aluminum |
| Rims manufacturer | 32-hole and 36-holeAlienation 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 TeethCroMO 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) DiameterPivotal |
Diamondback Viper
General Infos| Model | Viper |
| Manufacturer | Diamondback |
| Year of production | 1997 |
| Current price | 🛒 View Price → |
| Color choice | - chrome-plated- flat blue- red-Black |
| Sizes | - Boys 9.25 (inches) |
Wheels And Breaking System
| Bike front tire | 20 X 1.75 (inches) Cheng Shin |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Lee Chi 316A-1 LeversTektro 860AG and Dia-Compe Bulldog Front Brakes |
| Hubs for disc brakes | King Kong 337 |
| Rims manufacturer | 36-holeWeinmann 4019 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight GaugeShuhn Lih Steel |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Hsin Lung Steel |
| Handlebar extender | Not Available |
| Handlebar stem details | Hsin Lung Steel |
| Headset size | 1 (inches) Victor VP-H75 |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches)Taya 410 |
| Bottom bracket shell width | 68 (millimeters) Threadless |
| Bottom bracket type | Victor VPB-35 |
| Crankset parts and sizes | 44 TeethSteel |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth1-speed |
Diamondback Viper Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown CrownHi-tensile Steel |
| Fork type | Diamondback |
Other Specs of Diamondback Viper
| Component group sets | Not Available |
| Pedals details | HTI P71 |
| Rear shock absorber | Not Available |
| Saddle seat | Velo VL-247 |
| Seat post extension | 22.2 (millimeters) DiameterSteel Pillar |
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 Viper manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Diamondback Viper BMX here