Specialized ROCKHOPPER EXPERT 29 2010 VS Trek 3900 2006 specs comparison

Specialized Rockhopper Expert 29
General InfosModel | Rockhopper Expert 29 |
Manufacturer | Specialized |
Year of production | 2010 |
Current price | Check price Here ==> |
Color choice | -Black |
Sizes | - 15 (inches)- 17 (inches)- 19 (inches)- 21 (inches)- 23 (inches) |
Sizes | - 15 (inches)- 17 (inches)- 19 (inches)- 21 (inches)- 23 (inches) |
Wheels And Breaking System
Bike front tire | 29 X 2.00 (inches) Specialized Fast Trak LK Sport |
Bike rear tire | Not Available |
Bike wheel size | 29 (inches) Wheels |
Brakeset type | 160 (millimeters) Rotor Brakes Tektro Auriga Comp Hydraulic LeversTektro Auriga Comp Hydraulic |
Hubs for disc brakes | Forged Alloy Disc |
Rims manufacturer | 28-hole and 32-holeAlex RHD |
Spoke nipples type | Not Available |
Spoke wheel | 14ga. Stainless |
Frame and Body Specs
Frame materials | Specialized M4 ORE Aluminum |
Frame type | TIG-welded |
Handlebar construction | Alloy Riser |
Handlebar extender | Optional |
Handlebar stem details | 3D Forged |
Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
Bicycle chain | KMC X9 |
Bottom bracket shell width | 68 (millimeters) |
Bottom bracket type | 118 (millimeters) SpindleShimano BB-ES25 Octalink |
Crankset parts and sizes | 22/32/44 TeethShimano FC-M442 |
Gear shift levers | SRAM X.5 Trigger |
Rear gear set | 11 - 34 Teeth9-speed |
Specialized Rockhopper Expert 29 Fork System Data
Derailleur (Front) | Shimano Deore |
Derailleur (Rear) | SRAM X.5 |
Fork material | Single CrownMagnesium and aluminum |
Fork type | 80 (millimeters)RockShox Dart 3 SL 29er |
Other Specs of Specialized Rockhopper Expert 29
Component group sets | SRAM X 5 Mix |
Pedals details | Alloy |
Rear shock absorber | Not Available |
Saddle seat | Specialized XC Body Geometry |
Seat post extension | 30.9 (millimeters) DiameterAlloy Micro Adjust |

Trek 3900
General InfosModel | 3900 |
Manufacturer | Trek |
Year of production | 2006 |
Current price | Check price Here ==> |
Color choice | - Willow Green and Gray Green-Matte Lava Black and Matte Black |
Sizes | - 13 (inches)- 16 (inches)- 18 (inches)- 19.5 (inches)- 21 (inches)- 22.5 (inches)- womens 13 (inches)- womens 16 (inches)- womens 19.5 (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 LeversTektro Linear-pull Brakes |
Hubs for disc brakes | Rear: Shimano RM30Front: Aluminum |
Rims manufacturer | Matrix 550 |
Spoke nipples type | Not Available |
Spoke wheel | Stainless Steel |
Frame and Body Specs
Frame materials | Alpha Aluminum |
Frame type | TIG-welded |
Handlebar construction | Hi-tensile |
Handlebar extender | Not Available |
Handlebar stem details | Bontrager |
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 TeethSR XCC-150 |
Gear shift levers | Shimano EF50 |
Rear gear set | 11 - 32 Teeth8-speed |
Trek 3900 Fork System Data
Derailleur (Front) | Shimano FD-C050 |
Derailleur (Rear) | Shimano Acera |
Fork material | Single CrownAluminum |
Fork type | 70 (millimeters) TravelInSync Grind 1 |
Other Specs of Trek 3900
Component group sets | Mountain Mix |
Pedals details | Nylon Platform |
Rear shock absorber | Not Available |
Saddle seat | Bontrager Sport |
Seat post extension | Bontrager |
Useful links and guides ....
- To know more about this exacte bike, Specialized provided us with the latest version of its Rockhopper Expert 29 bike manual
- Find All parts, tires and accessories of Specialized Rockhopper Expert 29 Mountain bike here
- Get your Trek 3900 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Trek 3900 Mountain bike here