Specialized HOTROCK 24 21-SPEED BOYS 2012 VS Pyramid BMX 16 1999 specs comparison

Specialized Hotrock 24 21-speed Boys
General InfosModel | Hotrock 24 21-speed Boys |
Manufacturer | Specialized |
Year of production | 2012 |
Current price | Check price Here ==> |
Color choice | - White-Black |
Sizes | - 11 (inches) |
Sizes | - 11 (inches) |
Wheels And Breaking System
Bike front tire | Roller Sport 24 X 2.125 (inches) |
Bike rear tire | Not Available |
Bike wheel size | Not Available |
Brakeset type | Die Cast Alloy Linear Pull |
Hubs for disc brakes | Unavailable Front Hub Unavailable Rear Hub |
Rims manufacturer | Alex C-1000 20 (inches) |
Spoke nipples type | Not Available |
Spoke wheel | Not Available |
Frame and Body Specs
Frame materials | A1 Premium Aluminum |
Frame type | Not Available |
Handlebar construction | Hi-Ten Riser |
Handlebar extender | Not Available |
Handlebar stem details | Ahead 25.4 |
Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
Bicycle chain | KMC Z7 |
Bottom bracket shell width | Not Available |
Bottom bracket type | Water Sealed Loose-ball |
Crankset parts and sizes | Forged Alloy |
Gear shift levers | 7spdShimano Revo Twist |
Rear gear set | Not Available |
Specialized Hotrock 24 21-speed Boys Fork System Data
Derailleur (Front) | Shimano FD-CO50 |
Derailleur (Rear) | 7spdShimano TX31 |
Fork material | Not Available |
Fork type | SR Suntour F11-XCT-JR-24 |
Other Specs of Specialized Hotrock 24 21-speed Boys
Component group sets | Not Available |
Pedals details | Compostie |
Rear shock absorber | Unavailable Rear Shock |
Saddle seat | Specialized Kids Body Geometry |
Seat post extension | Alloy 27.2 |

Pyramid BMX 16
General InfosModel | BMX 16 |
Manufacturer | Pyramid |
Year of production | 1999 |
Current price | Check price Here ==> |
Color choice | -Chrome-Plated |
Sizes | - Boys 10 (inches) |
Wheels And Breaking System
Bike front tire | 16 X 1.75 (inches) Knobby |
Bike rear tire | Not Available |
Bike wheel size | 16 (inches) Wheels |
Brakeset type | Coaster Rear |
Hubs for disc brakes | Rear: Coaster Brake NuttedFront: Steel |
Rims manufacturer | 28-hole ChromeSteel |
Spoke nipples type | Brass Nipples |
Spoke wheel | 2.0 (millimeters) Straight GaugeSha-Dar Stainless Steel |
Frame and Body Specs
Frame materials | Hi-tensile Steel |
Frame type | TIG-welded |
Handlebar construction | Steel BMX |
Handlebar extender | Not Available |
Handlebar stem details | Alloy |
Headset size | 1 (inches) Steel |
Gearing Specifications
Bicycle chain | 1/2 X 1/8 (inches)KMC 410 |
Bottom bracket shell width | American 24tpi |
Bottom bracket type | One Piece |
Crankset parts and sizes | 36 Teeth1-piece 4 (inches) |
Gear shift levers | Not Available |
Rear gear set | 18 Teeth1-speed |
Pyramid BMX 16 Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Oversize Unicrown CrownHi-tensile Steel |
Fork type | Not Available |
Other Specs of Pyramid BMX 16
Component group sets | Not Available |
Pedals details | CS-90B |
Rear shock absorber | Not Available |
Saddle seat | HCN-710 |
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 24 21-speed Boys bike manual
- Find All parts, tires and accessories of Specialized Hotrock 24 21-speed Boys Youth here
- Get your Pyramid BMX 16 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Pyramid BMX 16 Youth here