GT ZUM 4.0 2007 VS Specialized HARDROCK PRO 2003 specs comparison
GT ZuM 4.0
General Infos| Model | ZuM 4.0 |
| Manufacturer | GT |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
-Not found |
| Sizes |
- Xsmall - small - medium - large - xlarge |
| Sizes |
- Xsmall - small - medium - large - xlarge |
Wheels And Breaking System
| Bike front tire | 26 X 1.50 (inches) Tioga City Slicker |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano ST-EF29 Levers Tektro Linear-pull Brakes |
| Hubs for disc brakes | Alloy QR |
| Rims manufacturer | Alloy Double Wall |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | Stainless Steel |
Frame and Body Specs
| Frame materials | ZuM 6061 Butted Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | 6061 Heat Treated GT Mtn Riser |
| Handlebar extender | Not Available |
| Handlebar stem details | GT ATB |
| Headset size | FSA Integrated |
Gearing Specifications
| Bicycle chain | Not Available |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Cartridge Sealed |
| Crankset parts and sizes | 22/32/42 Teeth Suntour XCT-202 |
| Gear shift levers | Shimano ST-EF50 |
| Rear gear set | 11 - 32 Teeth 8-speed |
GT ZuM 4.0 Fork System Data
| Derailleur (Front) | Shimano Acera |
| Derailleur (Rear) | Shimano Acera |
| Fork material | Unicrown Crown Aluminum and magnesium |
| Fork type | 60 (millimeters) Travel SR NRX-4000 |
Other Specs of GT ZuM 4.0
| Component group sets | Mountain Mix |
| Pedals details | High Impact Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | WTB Speed V |
| Seat post extension | GT Aluminum 6061 |
Specialized Hardrock Pro
General Infos| Model | Hardrock Pro |
| Manufacturer | Specialized |
| Year of production | 2003 |
| Current price | Check price Here ==> |
| Color choice |
-Titanium |
| Sizes |
- 13 (inches) - 15 (inches) - 19 (inches) - 21 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.20 (inches) Specialized Enduro Sport |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano Alivio Levers Aluminum Linear-pull Brakes |
| Hubs for disc brakes | Q and R Joy Tech Aluminum |
| Rims manufacturer | 32-hole Alex DM-20 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | Specialized A1 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Specialized Aluminum |
| Handlebar extender | Optional |
| Handlebar stem details | Aluminum Threadless |
| Headset size | 1 1/8 (inches) Threadless Specialized Loose Ball |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Shimano CN-IG31 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 113 (millimeters) Spindle Truvativ BB-02 |
| Crankset parts and sizes | 22/32/42 Teeth TruVativ X-Forge |
| Gear shift levers | Shimano Alivio RapidFire Plus |
| Rear gear set | 11 - 32 Teeth 8-speed |
Specialized Hardrock Pro Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 31.8 (millimeters) Shimano Acera |
| Derailleur (Rear) | Shimano Deore SGS |
| Fork material | Single Crown Aluminum and magnesium |
| Fork type | 100 (millimeters) Travel Rock Shox Judy TT |
Other Specs of Specialized Hardrock Pro
| Component group sets | Mountain Mix |
| Pedals details | Specialized Twin Sided Toe Clip |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Sport ATB |
| Seat post extension | 30.9 (millimeters) Diameter Aluminum |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its ZuM 4.0 bike manual
- Find All parts, tires and accessories of GT ZuM 4.0 Mountain bike here
- Get your Specialized Hardrock Pro manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Hardrock Pro Mountain bike here