GT BUMP 2005 VS Redline RL 640 1997 specs comparison
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➜ GT Bump price
➜ Redline RL 640 price
GT Bump
General Infos| Model | Bump |
| Manufacturer | GT |
| Year of production | 2005 |
| Current price | 🛒 View Price → |
| Color choice | - Madness Pewter-Deep Artic Blue |
| Sizes | - Not available |
| Sizes | - Not available |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 2.10 (inches) GT LP-IVFront: 20 X 2.20 (inches) GT 1453 |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro 274A Rear LeversTektro 907AD Rear Brakes |
| Hubs for disc brakes | 3/8 (inches) AxleAluminum |
| Rims manufacturer | Alex G22 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight Gauge |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | Chromoly 2-piece |
| Handlebar extender | Not Available |
| Handlebar stem details | GT Johnson III |
| Headset size | 1 1/8 (inches) Threadless Tange Seiki Fatty 22 |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches)KMC Z410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 39 TeethGT Tubular Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 14 Teeth1-speed |
GT Bump Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown CrownChromoly |
| Fork type | GT |
Other Specs of GT Bump
| Component group sets | Not Available |
| Pedals details | GT Dirt and Street |
| Rear shock absorber | Not Available |
| Saddle seat | GT-6 Original |
| Seat post extension | Aluminum Micro-adjust |
Redline RL 640
General Infos| Model | RL 640 |
| Manufacturer | Redline |
| Year of production | 1997 |
| Current price | 🛒 View Price → |
| Color choice | -Chrome-plated |
| Sizes | - Boys |
Wheels And Breaking System
| Bike front tire | 20 X 1.95 (inches) Redline Freaky-V |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Dia-Compe LeversDia-Compe 990 Brakes |
| Hubs for disc brakes | Redline Aluminum Nutted |
| Rims manufacturer | 48-holeSun Rims Rhyno Lite |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight GaugeStainless Steel |
Frame and Body Specs
| Frame materials | 4130 chromoly c |
| Frame type | TIG-welded |
| Handlebar construction | Redline Forklifter |
| Handlebar extender | Not Available |
| Handlebar stem details | Redline Flight |
| Headset size | 1 1/8 (inches) Threadless Dia-Compe Aheadset With SST Oryg Detangler |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches)KMC 410 |
| Bottom bracket shell width | 68 (millimeters) Threadless |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 44 TeethRedline 1-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth1-speed |
Redline RL 640 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown4130 Chromoly |
| Fork type | Redline |
Other Specs of Redline RL 640
| Component group sets | Not Available |
| Pedals details | Proline Aluminum |
| Rear shock absorber | Not Available |
| Saddle seat | Redline Ha (millimeters)erhead |
| Seat post extension | Redline Ha (millimeters)erhead Chromoly |
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 Freestyle here
- Get your Redline RL 640 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Redline RL 640 Freestyle here