Trek 3900 2007 VS Specialized GROMROCK 2008 specs comparison
Trek 3900
General Infos| Model | 3900 |
| Manufacturer | Trek |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
- Matte Black and Matte Smooth Silver -Trans Blue |
| Sizes |
- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches) |
| Sizes |
- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.00 (inches) Bontrager Connection Trail |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano EF-50 Levers Tektro V Brakes |
| Hubs for disc brakes | Rear: Shimano RM-30 Front: Alloy |
| Rims manufacturer | Matrix 550 |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Alpha Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Bontrager Approved |
| Handlebar extender | Optional |
| Handlebar stem details | Bontrager Approved |
| Headset size | Aheadset Slimstak |
Gearing Specifications
| Bicycle chain | Not Available |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 24/34/42 Teeth SR XCC-T102 |
| Gear shift levers | Shimano EF-50 |
| Rear gear set | 11 - 32 Teeth 8-speed |
Trek 3900 Fork System Data
| Derailleur (Front) | Shimano C-050 |
| Derailleur (Rear) | Shimano Acera |
| Fork material | Single Crown Aluminum and steel |
| Fork type | 70 (millimeters) Travel InSync Grind 1 |
Other Specs of Trek 3900
| Component group sets | Shimano Mix |
| Pedals details | Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager Sport |
| Seat post extension | Bontrager Approved |
Specialized Gromrock
General Infos| Model | Gromrock |
| Manufacturer | Specialized |
| Year of production | 2008 |
| Current price | Check price Here ==> |
| Color choice |
-Charcoal and black |
| Sizes |
- 12.5 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.1 (inches) Specialized Resolution Wire |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Tektro Jr. Levers Tektro IOX With 6 (inches) Rotor Brakes |
| Hubs for disc brakes | Specialized Hi-Lo Disc |
| Rims manufacturer | 32-hole Specialized and Alex HRD 24 |
| Spoke nipples type | Not Available |
| Spoke wheel | 15ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | A1 Premium Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Alloy Riser |
| Handlebar extender | Optional |
| Handlebar stem details | Specialized 3D Forged Alloy 25.4 (millimeters) |
| Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) KMX X8 |
| Bottom bracket shell width | 68 (millimeters) |
| Bottom bracket type | 118 (millimeters) Spindle Shimano BB-ES25 |
| Crankset parts and sizes | 22/32/44 Teeth SR Suntour XCM-T312 |
| Gear shift levers | SRAM 3.0 Comp Grip Shift |
| Rear gear set | 11 - 32 Teeth 8-speed |
Specialized Gromrock Fork System Data
| Derailleur (Front) | Top Swing Shimano Altus FD-M310-6 |
| Derailleur (Rear) | SRAM 3.0 |
| Fork material | Single Crown Crown Aluminum and steel |
| Fork type | 80 (millimeters) Travel SR Suntour SF7-XCM |
Other Specs of Specialized Gromrock
| Component group sets | Mountain Mix |
| Pedals details | Steel Cage and composite Body |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Kids ATB With Kevlar Sides |
| Seat post extension | 30.9 (millimeters) Diameter Specialized Alloy Two Bolt |
Useful links and guides ....
- To know more about this exacte bike, Trek provided us with the latest version of its 3900 bike manual
- Find All parts, tires and accessories of Trek 3900 Mountain bike here
- Get your Specialized Gromrock manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Gromrock Mountain bike here