Specialized HOTROCK 24 21-SPEED 2008 VS Scott SPARK JR 20 2009 specs comparison
Specialized Hotrock 24 21-Speed
General Infos| Model | Hotrock 24 21-Speed |
| Manufacturer | Specialized |
| Year of production | 2008 |
| Current price | Check price Here ==> |
| Color choice |
- army and black - pink - silver -Red and black |
| Sizes |
- 24 wheel (inches) |
| Sizes |
- 24 wheel (inches) |
Wheels And Breaking System
| Bike front tire | Rear: 24 X 21.125 (inches) Specialized Roller Wire Front: 24 X 2.125 (inches) Specialized Roller Wire |
| Bike rear tire | Not Available |
| Bike wheel size | 24 (inches) Wheels |
| Brakeset type | Tektro Jr. Levers Promax Alloy (inches)V (inches) Brakes |
| Hubs for disc brakes | Forged Alloy |
| Rims manufacturer | 32-hole Alex C-1000 |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Straight Gauge UCP |
Frame and Body Specs
| Frame materials | A1 Premium Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Hi-tensile Steel |
| Handlebar extender | Optional |
| Handlebar stem details | Alloy |
| Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) KMC Z7 |
| Bottom bracket shell width | 68 (millimeters) |
| Bottom bracket type | 124 (millimeters) Spindle VP |
| Crankset parts and sizes | 24/34/42 Teeth Sugino |
| Gear shift levers | Shimano RS-31 Revo Twist |
| Rear gear set | 14 - 28 Teeth 7-speed |
Specialized Hotrock 24 21-Speed Fork System Data
| Derailleur (Front) | Shimano FD-C050 |
| Derailleur (Rear) | Shimano RD-TX30 |
| Fork material | Single Crown Steel and aluminum |
| Fork type | 50 (millimeters) Travel RST Capa C24 |
Other Specs of Specialized Hotrock 24 21-Speed
| Component group sets | Mountain Mix |
| Pedals details | Composite Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Kids |
| Seat post extension | 27.2 (millimeters) Diameter Alloy Micro-adjust |
Scott Spark JR 20
General Infos| Model | Spark JR 20 |
| Manufacturer | Scott |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-White and Red |
| Sizes |
- Not available |
Wheels And Breaking System
| Bike front tire | 20 X 2.20 (inches) K-829 |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro 324A-TS Levers Lee Chi 209 P Brakes |
| Hubs for disc brakes | Formula FM-11 |
| Rims manufacturer | 32-hole Jalco VP-20 |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | 6061 Alloy c |
| Frame type | TIG-welded |
| Handlebar construction | Junior Flat Bar |
| Handlebar extender | Optional |
| Handlebar stem details | HL-TDS-C41-8 |
| Headset size | 1 1/8 (inches) Threadless VP-A71 |
Gearing Specifications
| Bicycle chain | Not Available |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | TH M1 |
| Crankset parts and sizes | 34/42 Teeth Lasco Double |
| Gear shift levers | Shimano Revo |
| Rear gear set | 14 - 28 Teeth 6-speed |
Scott Spark JR 20 Fork System Data
| Derailleur (Front) | Shimano TY-22 |
| Derailleur (Rear) | Shimano TY-18 |
| Fork material | Not Available |
| Fork type | 50 (millimeters) Travel RST K20 |
Other Specs of Scott Spark JR 20
| Component group sets | Mountain Mix |
| Pedals details | VP 570 BMX-type |
| Rear shock absorber | 65 (millimeters) Apro SD |
| Saddle seat | Junior Racing |
| Seat post extension | 26.8 (millimeters) Diameter Scott SP-214 |
Useful links and guides ....
- To know more about this exacte bike, Specialized provided us with the latest version of its Hotrock 24 21-Speed bike manual
- Find All parts, tires and accessories of Specialized Hotrock 24 21-Speed Youth here
- Get your Scott Spark JR 20 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Scott Spark JR 20 Youth here
