Specialized HOTROCK 20 BOYS 2007 VS Gary Fisher MT. JAM 1999 specs comparison
Specialized Hotrock 20 Boys
General Infos| Model | Hotrock 20 Boys |
| Manufacturer | Specialized |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
- Orange and Black -Blue and Black |
| Sizes |
- Standard size for everyone |
| Sizes |
- Standard size for everyone |
Wheels And Breaking System
| Bike front tire | 16 X 2.125 (inches) Specialized Roller |
| Bike rear tire | Not Available |
| Bike wheel size | 16 (inches) Wheels |
| Brakeset type | Tektro Jr. Levers Tektro V-brake Brakes |
| Hubs for disc brakes | Rear: Forged Alloy Front: Alloy Nutted |
| Rims manufacturer | 36-hole Alex C-1000 Alloy Single Wall |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | Specialized A1 Premium Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Hi-Ten |
| 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 | 128 (millimeters) Spindle VP Loose Ball |
| Crankset parts and sizes | 36 Teeth Sugino |
| Gear shift levers | Shimano RS-31 Revo Twist |
| Rear gear set | 14 - 28 Teeth 6-speed |
Specialized Hotrock 20 Boys Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Shimano TY |
| Fork material | Single Crown Steel and aluminum |
| Fork type | 50 (millimeters) RST 200K |
Other Specs of Specialized Hotrock 20 Boys
| Component group sets | Juvenile Mix |
| Pedals details | Composite Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Hotrock Jumping |
| Seat post extension | 27.2 (millimeters) Diameter Alloy Micro Adjust |
Gary Fisher Mt. Jam
General Infos| Model | Mt. Jam |
| Manufacturer | Gary Fisher |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
-Chrome-Plated |
| Sizes |
- 11.5 (inches) |
Wheels And Breaking System
| Bike front tire | 24 X 2.00 (inches) Knobby |
| Bike rear tire | Not Available |
| Bike wheel size | 24 (inches) Wheels |
| Brakeset type | Tektro 317A Levers Tektro 915A Brakes |
| Hubs for disc brakes | Nutted Kung Ten Aluminum |
| Rims manufacturer | 32-hole Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 1.8 (millimeters) Straight Gauge Steel |
Frame and Body Specs
| Frame materials | Chromoly Seat Tube and hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Steel |
| Handlebar extender | Chromoly |
| Handlebar stem details | Steel |
| Headset size | 1 (inches) Victor VP-H692W |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) KMC Z-51 |
| Bottom bracket shell width | 73 (millimeters) English |
| Bottom bracket type | Victor VPB-33W |
| Crankset parts and sizes | 24/34/42 Teeth SR XR17 |
| Gear shift levers | Grip Shift MRX-200 |
| Rear gear set | 13 - 28 Teeth 7-speed |
Gary Fisher Mt. Jam Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 28.6 (millimeters) Shimano Altus Top-swing |
| Derailleur (Rear) | Shimano Tourney TY-30 |
| Fork material | Triple-clamp Crown Aluminum and chromoly |
| Fork type | 2.5 (inches) Travel RST 281 |
Other Specs of Gary Fisher Mt. Jam
| Component group sets | Mountain Mix |
| Pedals details | Resin Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Fisher SuperSoft |
| Seat post extension | Aluminum Micro-adjust |
Useful links and guides ....
- To know more about this exacte bike, Specialized provided us with the latest version of its Hotrock 20 Boys bike manual
- Find All parts, tires and accessories of Specialized Hotrock 20 Boys Youth here
- Get your Gary Fisher Mt. Jam manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Gary Fisher Mt. Jam Youth here
