Hoffman INSTRUMENT 2003 VS GT BUMP 2001 specs comparison
Hoffman Instrument
General Infos| Model | Instrument |
| Manufacturer | Hoffman |
| Year of production | 2003 |
| Current price | Check price Here ==> |
| Color choice | - Dark Bronze- Royale Blue-Black |
| Sizes | - Pro |
| Sizes | - Pro |
Wheels And Breaking System
| Bike front tire | 20 X 1.95 (inches) Hoffman Skid Mark |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Dia-Compe MX99 LeversDiaTech 996 U-brake Brakes |
| Hubs for disc brakes | Not Available |
| Rims manufacturer | 48-holeJalco |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Straight GaugeStainless Steel |
Frame and Body Specs
| Frame materials | 4130 chromoly c |
| Frame type | TIG-welded |
| Handlebar construction | Hoffman Jumping Bars |
| Handlebar extender | Not Available |
| Handlebar stem details | Hoffman Bikes Super Stem |
| Headset size | 1 1/8 (inches) Threadless Dia-Tech D-Cup |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches)KMC |
| Bottom bracket shell width | American |
| Bottom bracket type | SealedThree Piece |
| Crankset parts and sizes | 44 Teeth1-piece 175 (millimeters) |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth1-speed |
Hoffman Instrument Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | 4130 chromoly c |
| Fork type | Hoffman Bikes Superfork |
Other Specs of Hoffman Instrument
| Component group sets | Not Available |
| Pedals details | Wellgo LU-313 |
| Rear shock absorber | Not Available |
| Saddle seat | Hoffman Padded Embossed Skull |
| Seat post extension | 25.4 (millimeters) DiameterChromoly Micro-adjust |
GT Bump
General Infos| Model | Bump |
| Manufacturer | GT |
| Year of production | 2001 |
| Current price | Check price Here ==> |
| Color choice | - Raven Black-Galaxie Silver |
| Sizes | - Pro |
Wheels And Breaking System
| Bike front tire | 20 X 2.10 (inches) GT LP-III |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro 217A Rear LeversTektro FX-10 Rear Brakes |
| Hubs for disc brakes | GT Mohawk |
| Rims manufacturer | 48-holeAlex AL-MX22 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14g |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | GT Freestyle |
| Handlebar extender | Optional |
| Handlebar stem details | GT Johnson |
| Headset size | 1 1/8 (inches) Threadless Tange Seiki STE |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches)KMC |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 44 TeethGT 3-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 16 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 Aluminum Platform |
| Rear shock absorber | Not Available |
| Saddle seat | GT |
| Seat post extension | GT Aluminum Micro-adjust |
Related Bike comparison
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Useful links and guides ....
- To know more about this exacte bike, Hoffman provided us with the latest version of its Instrument bike manual
- Find All parts, tires and accessories of Hoffman Instrument Freestyle here
- Get your GT Bump manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT Bump Freestyle here