Specialized HOTROCK A1 FS 2007 VS Giant BOULDER JR 2011 specs comparison

Specialized Hotrock A1 FS
General InfosModel | Hotrock A1 FS |
Manufacturer | Specialized |
Year of production | 2007 |
Current price | Check price Here ==> |
Color choice | -Black |
Sizes | - Boys 13 (inches)- boys 11 (inches) |
Sizes | - Boys 13 (inches)- boys 11 (inches) |
Wheels And Breaking System
Bike front tire | 24 X 1.80 (inches) Specialized Roll-X |
Bike rear tire | Not Available |
Bike wheel size | 24 (inches) Wheels |
Brakeset type | Tektro Jr. LeversTektro V-brake Brakes |
Hubs for disc brakes | Alloy QR |
Rims manufacturer | 32-holeSpecialized and Alex HRXC |
Spoke nipples type | Not Available |
Spoke wheel | 15ga. Straight GaugeStainless Steel |
Frame and Body Specs
Frame materials | Specialized A1 Premium Aluminum |
Frame type | TIG-welded |
Handlebar construction | Alloy Flat |
Handlebar extender | Optional |
Handlebar stem details | Alloy A-Head |
Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
Bicycle chain | Shimano HG-40 |
Bottom bracket shell width | 68 (millimeters) |
Bottom bracket type | 113 (millimeters) SpindleTruVativ Cartridge |
Crankset parts and sizes | 22/32/42 TeethTruVativ ISO-Flow |
Gear shift levers | Shimano RS-41 Revo Twist |
Rear gear set | 14 - 28 Teeth7-speed |
Specialized Hotrock A1 FS Fork System Data
Derailleur (Front) | Shimano Acera |
Derailleur (Rear) | Shimano Altus |
Fork material | Single CrownSteel and aluminum |
Fork type | 50 (millimeters)RST Capa T7A |
Other Specs of Specialized Hotrock A1 FS
Component group sets | Juvenile Mix |
Pedals details | Composite BodySteel Cage |
Rear shock absorber | Not Available |
Saddle seat | Specialized Body Geometry ATB Kid's |
Seat post extension | 27.2 (millimeters) DiameterAlloy Micro Adjust |

Giant Boulder JR
General InfosModel | Boulder JR |
Manufacturer | Giant |
Year of production | 2011 |
Current price | Check price Here ==> |
Color choice | -Red |
Sizes | - 24 Wheel (inches) |
Wheels And Breaking System
Bike front tire | 24 (inches) Kenda Off Road |
Bike rear tire | Not Available |
Bike wheel size | 24 (inches) Wheels |
Brakeset type | Alloy LeversAlloy Direct Pull Brakes |
Hubs for disc brakes | Nutted |
Rims manufacturer | 36-holeAlloy |
Spoke nipples type | Not Available |
Spoke wheel | 14ga. UCP |
Frame and Body Specs
Frame materials | High-Tensile Steel |
Frame type | TIG-welded |
Handlebar construction | Steel Low Rise |
Handlebar extender | Optional |
Handlebar stem details | Steel |
Headset size | 1 1/8" c |
Gearing Specifications
Bicycle chain | KMC Z51 |
Bottom bracket shell width | Not Available |
Bottom bracket type | Semi Cartridge |
Crankset parts and sizes | 38T TeethAlloy 3-Piece |
Gear shift levers | SRAM MRX |
Rear gear set | 14 - 28 Teeth7-speed |
Giant Boulder JR Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Shimano Tourney |
Fork material | Single CrownHigh-tensile Steel |
Fork type | Not Available |
Other Specs of Giant Boulder JR
Component group sets | Juvenile Mix |
Pedals details | Nylon Platform |
Rear shock absorber | Not Available |
Saddle seat | Giant Kids MTB |
Seat post extension | 25.4 (millimeters) DiameterSteel |
Useful links and guides ....
- To know more about this exacte bike, Specialized provided us with the latest version of its Hotrock A1 FS bike manual
- Find All parts, tires and accessories of Specialized Hotrock A1 FS Youth here
- Get your Giant Boulder JR manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Giant Boulder JR Youth here