Trek MYSTIC 12 2004 VS Specialized HOTROCK 20 BOYS COASTER 2009 specs comparison

Trek Mystic 12
General InfosModel | Mystic 12 |
Manufacturer | Trek |
Year of production | 2004 |
Current price | Check price Here ==> |
Color choice | -White |
Sizes | - Girls |
Sizes | - Girls |
Wheels And Breaking System
Bike front tire | 12 X 2.125 (inches) Kenda K-Rad |
Bike rear tire | Not Available |
Bike wheel size | 12 (inches) Wheels |
Brakeset type | Coaster Brake Rear |
Hubs for disc brakes | NuttedSteel |
Rims manufacturer | ChromeSteel |
Spoke nipples type | Not Available |
Spoke wheel | Straight GaugeStainless Steel |
Frame and Body Specs
Frame materials | Hi-tensile Steel |
Frame type | TIG-welded |
Handlebar construction | RiseSteel |
Handlebar extender | Optional |
Handlebar stem details | Steel |
Headset size | 1 (inches) Threaded Steel |
Gearing Specifications
Bicycle chain | 1/2 X 1/8 (inches) |
Bottom bracket shell width | Not Available |
Bottom bracket type | Not Available |
Crankset parts and sizes | 28 TeethSteel One-piece |
Gear shift levers | Not Available |
Rear gear set | 20 Teeth1-speed |
Trek Mystic 12 Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown CrownHi-tensile Steel |
Fork type | Trek |
Other Specs of Trek Mystic 12
Component group sets | Not Available |
Pedals details | PlatformResin |
Rear shock absorber | Not Available |
Saddle seat | Trek Jr |
Seat post extension | Steel |

Specialized Hotrock 20 Boys Coaster
General InfosModel | Hotrock 20 Boys Coaster |
Manufacturer | Specialized |
Year of production | 2009 |
Current price | Check price Here ==> |
Color choice | - Gloss Silver and Blue-Gloss Black and Green |
Sizes | - Not available |
Wheels And Breaking System
Bike front tire | 20 X 2.125 (inches) Specialized Roller |
Bike rear tire | Not Available |
Bike wheel size | 20 (inches) Wheels |
Brakeset type | Alloy Rear LeversTektro Linear-pull and coaster Rear Brakes |
Hubs for disc brakes | Rear: Joy Tech Steel Nutted CoasterFront: Joy Tech Steel Nutted |
Rims manufacturer | 36-holeAlloy |
Spoke nipples type | Brass Nipples |
Spoke wheel | 14ga. |
Frame and Body Specs
Frame materials | Specialized A1 Premium Aluminum |
Frame type | TIG-welded |
Handlebar construction | Steel |
Handlebar extender | Optional |
Handlebar stem details | Alloy |
Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
Bicycle chain | 1/2 X 1/8 (inches)KMC Z410 |
Bottom bracket shell width | Not Available |
Bottom bracket type | Loose Ball |
Crankset parts and sizes | 36 TeethHeat Treated Hi-Ten |
Gear shift levers | Not Available |
Rear gear set | 1-speed |
Specialized Hotrock 20 Boys Coaster Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown CrownA1 Premium Aluminum and Hi-Ten |
Fork type | Not Available |
Other Specs of Specialized Hotrock 20 Boys Coaster
Component group sets | Juvenile Mix |
Pedals details | Composite |
Rear shock absorber | Not Available |
Saddle seat | Specialized |
Seat post extension | 25.4 (millimeters) DiameterSteel |
Useful links and guides ....
- To know more about this exacte bike, Trek provided us with the latest version of its Mystic 12 bike manual
- Find All parts, tires and accessories of Trek Mystic 12 Youth here
- Get your Specialized Hotrock 20 Boys Coaster manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Hotrock 20 Boys Coaster Youth here