GT ZUM 4.0 2007 VS Specialized ROCKHOPPER PRO 2009 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 Rockhopper Pro
General Infos| Model | Rockhopper Pro |
| Manufacturer | Specialized |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-Gloss Metallic Orange |
| Sizes |
- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.00 (inches) Specialized Fast Trak LK Control |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Avid Juicy 3 SL Levers Avid Juicy 3 SL With 160 (millimeters) Rotor Brakes |
| Hubs for disc brakes | Rear: Specialized Disc Front: Specialized Hi Lo Disc |
| Rims manufacturer | 28-hole and 32-hole DT Swiss 445D |
| Spoke nipples type | Not Available |
| Spoke wheel | 15ga. Stainless Steel |
Frame and Body Specs
| Frame materials | Specialized M4 ORE Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Specialized Low Riser |
| Handlebar extender | Optional |
| Handlebar stem details | Specialized 3D |
| Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
| Bicycle chain | KMC X9 SL |
| Bottom bracket shell width | 68 (millimeters) |
| Bottom bracket type | 118 (millimeters) Spindle Shimano BB-ES25 |
| Crankset parts and sizes | 22/32/44 Teeth Shimano Deore |
| Gear shift levers | SRAM X.5 Trigger |
| Rear gear set | 11 - 34 Teeth 9-speed |
Specialized Rockhopper Pro Fork System Data
| Derailleur (Front) | Shimano Deore |
| Derailleur (Rear) | SRAM X.7 |
| Fork material | Single Crown Alloy |
| Fork type | 100 (millimeters) Travel RockShox Recon SLite |
Other Specs of Specialized Rockhopper Pro
| Component group sets | SRAM Mix |
| Pedals details | Alloy Cage |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized BG Indie XC |
| Seat post extension | 30.9 (millimeters) Diameter Specialized Alloy Two Bolt |
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 Rockhopper Pro manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Rockhopper Pro Mountain bike here