Specialized ROCKHOPPER 2011 VS GT ZUM 3.0 2007 specs comparison
Specialized Rockhopper
General Infos| Model | Rockhopper |
| Manufacturer | Specialized |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
- Wht and Red -Blk and Brn |
| Sizes |
- 13 (inches) - 15.5 (inches) - 17.5 (inches) - 19 (inches) - 21 (inches) - 23 (inches) |
| Sizes |
- 13 (inches) - 15.5 (inches) - 17.5 (inches) - 19 (inches) - 21 (inches) - 23 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.0 (inches) Specialized The Captain Sport |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Alloy Levers Avid BB5 Mechanical Disc Brakes |
| Hubs for disc brakes | Rear: Forged Alloy Front: Forged Alloy Hi and low Flange |
| Rims manufacturer | 28-hole and 32-hole Alex RHD 26 (inches) |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Butted Stainless |
Frame and Body Specs
| Frame materials | Specialized M4 Alloy |
| Frame type | TIG-welded |
| Handlebar construction | Butted Alloy Risebar |
| Handlebar extender | Optional |
| Handlebar stem details | 3D Forged Alloy |
| Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
| Bicycle chain | KMC X8 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Shimano BB ES25 Octalink |
| Crankset parts and sizes | 22/32/42 Teeth SR Suntour |
| Gear shift levers | SRAM X.4 |
| Rear gear set | 11 - 32 Teeth 8-speed |
Specialized Rockhopper Fork System Data
| Derailleur (Front) | 34.9 (millimeters) Clamp Shimano Atlus |
| Derailleur (Rear) | SRAM X.5 |
| Fork material | Single Crown Alloy Steerer |
| Fork type | SR Suntour SF11 |
Other Specs of Specialized Rockhopper
| Component group sets | Mountain Mix |
| Pedals details | Plastic Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Rockhopper XC |
| Seat post extension | 30.9 (millimeters) Diameter Two-bolt Alloy Micro-Adjust |
GT ZuM 3.0
General Infos| Model | ZuM 3.0 |
| Manufacturer | GT |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
-Not found |
| 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 | Avid FR-5 Levers Shimano Cold Forged Brakes |
| Hubs for disc brakes | Shimano |
| Rims manufacturer | Alex DC-19 |
| Spoke nipples type | Alloy |
| 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 | Shimano |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Truvativ Sealed Cartridge |
| Crankset parts and sizes | 26/36/48 Teeth Truvativ 5-D |
| Gear shift levers | Shimano Deore |
| Rear gear set | 11 - 34 Teeth 9-speed |
GT ZuM 3.0 Fork System Data
| Derailleur (Front) | Shimano Alivio |
| Derailleur (Rear) | Shimano Deore |
| Fork material | Unicrown Crown Aluminum and magnesium |
| Fork type | 60 (millimeters) Travel SR NRX-4500 |
Other Specs of GT ZuM 3.0
| Component group sets | Mountain Mix |
| Pedals details | Stainless Steel Cage Lo Profile Pedal Alloy Body |
| Rear shock absorber | Not Available |
| Saddle seat | WTB Speed V |
| Seat post extension | GT Aluminum 6061 |
Useful links and guides ....
- To know more about this exacte bike, Specialized provided us with the latest version of its Rockhopper bike manual
- Find All parts, tires and accessories of Specialized Rockhopper Mountain bike here
- Get your GT ZuM 3.0 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT ZuM 3.0 Mountain bike here