Giant BOULDER JR. 2012 VS Specialized HOTROCK 12 COASTER GIRLS 2015 specs comparison
Giant Boulder Jr.
General Infos| Model | Boulder Jr. |
| Manufacturer | Giant |
| Year of production | 2012 |
| Current price | Check price Here ==> |
| Color choice | -Black and Red |
| Sizes | - 24 |
| Sizes | - 24 |
Wheels And Breaking System
| Bike front tire | Giant S-XC 4 24x1.95 |
| Bike rear tire | Not Available |
| Bike wheel size | Not Available |
| Brakeset type | Alloy Direct Pull |
| Hubs for disc brakes | Alloy Alloy |
| Rims manufacturer | Unavailable Wheelset |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Steel |
| Frame type | Not Available |
| Handlebar construction | Steel Youth MTB Low Rise |
| Handlebar extender | Not Available |
| Handlebar stem details | Steel Quill |
| Headset size | Unavailable Headset |
Gearing Specifications
| Bicycle chain | KMC Z-51 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Unavailable Bottom Bracket |
| Crankset parts and sizes | Alloy 3-piece 38t |
| Gear shift levers | Shimano Revo Twist |
| Rear gear set | Not Available |
Giant Boulder Jr. Fork System Data
| Derailleur (Front) | Unavailable Front Derailleur |
| Derailleur (Rear) | Shimano Tourney |
| Fork material | Not Available |
| Fork type | Steel |
Other Specs of Giant Boulder Jr.
| Component group sets | Not Available |
| Pedals details | Nylon Flat Pedal |
| Rear shock absorber | Unavailable Rear Shock |
| Saddle seat | Giant Youth MTB |
| Seat post extension | Steel 25.4 (millimeters) |
Specialized HOTROCK 12 COASTER GIRLS
General Infos| Model | HOTROCK 12 COASTER GIRLS |
| Manufacturer | Specialized |
| Year of production | 2015 |
| Current price | Check price Here ==> |
| Color choice | - White and Purple-Pink and White |
| Sizes | - Standard size for all |
Wheels And Breaking System
| Bike front tire | 12x2.0 (inches) 30TPI Wire BeadSpecialized Rhythm Lite |
| Bike rear tire | Not Available |
| Bike wheel size | 12 |
| Brakeset type | Coaster Brake |
| Hubs for disc brakes | 16h 16h 3/8 (inches) Axle Steel Coaster Brake Nutted AxleSteel |
| Rims manufacturer | 16h Alloy Single Wall Pin Joint12 (inches) |
| Spoke nipples type | Not Available |
| Spoke wheel | 14g With Brass NippleStainless |
Frame and Body Specs
| Frame materials | Aluminum |
| Frame type | 12 (inches) Singlespeed Coaster Formed Tubes Horizontal DropoutsSpecialized A1 Premium Aluminum |
| Handlebar construction | 10-degree Backsweep 22.2 (millimeters) 4-degree Upsweep 55 (millimeters) Rise SteelKid's Riser |
| Handlebar extender | Not Available |
| Handlebar stem details | 22.2 X 125 (millimeters) AlloyQuill |
| Headset size | Loose Ball With Lock Nut1 (inches) Threaded |
Gearing Specifications
| Bicycle chain | 1/2 (inches)x1/8 (inches)KMC HV410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | OPC Ball Retainer TypeSteel |
| Crankset parts and sizes | 26t OPCHi-Ten Steel |
| Gear shift levers | Not Available |
| Rear gear set | Not Available |
Specialized HOTROCK 12 COASTER GIRLS Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | High Tensile Steel |
| Fork type | 1 (inches) Threaded Steerer 3/8 (inches) Axle DropoutsHi-Ten Steel |
Other Specs of Specialized HOTROCK 12 COASTER GIRLS
| Component group sets | Youth Mix |
| Pedals details | 1/2 (inches) Ball BearingsComposite Platform |
| Rear shock absorber | Not Available |
| Saddle seat | 25.4 (millimeters) Integrated Steel Seatpost Integrated HandleSpecialized Kids |
| Seat post extension | Not Available |
Useful links and guides ....
- To know more about this exacte bike, Giant provided us with the latest version of its Boulder Jr. bike manual
- Find All parts, tires and accessories of Giant Boulder Jr. Youth here
- Get your Specialized HOTROCK 12 COASTER GIRLS manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized HOTROCK 12 COASTER GIRLS Youth here