Specialized Hotrock 20 Coaster 2006 Technical specs and features
Brand | Specialized |
Model | Hotrock 20 Coaster |
First production | 2006 |
Bike category | Youth |
Bike sub-category | Youth Mountain Bike Without Suspension |
Bike Pricing | Check price Here ==> |
Parts And Accessories | Specialized Hotrock 20 Coaster Parts |
Available Sizes | - 20 (inches) / 50.8 (cm) - 20 (inches) |
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 | Coaster Brake Rear |
Hubs for disc brakes | Rear: Joy-Tech Coaster Steel Nutted Axle Steel Nutted Axle Front: Joy-Tech |
Rims manufacturer | 36-hole Alex |
Spoke nipples type | Not Available |
Spoke wheel | 14ga. Straight Gauge UCP |
Frame and Body Specifications
Frame materials | Hi-tensile Steel |
Frame type | TIG-welded |
Handlebar construction | Hi-Ten 2pc |
Handlebar extender | Optional |
Handlebar stem details | Alloy A-Head |
Headset size | 1 1/8 (inches) Threadless |
Gearing Specs
Bicycle chain | KMC Z 410 |
Bottom bracket shell width | Not Available |
Bottom bracket type | Loose Ball |
Crankset parts and sizes | 36 Teeth 1-piece Steel |
Gear shift levers | Not Available |
Rear gear set | 18 Teeth 1-speed |
Specialized Hotrock 20 Coaster Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown Crown Steel |
Fork type | Hotrock Hi-Ten |
Other Specs of Specialized Hotrock 20 Coaster
Component group sets | Juvenile Mix |
Available colors | - Not found |
Weight | Not Available |
Pedals details | Junior Resin Platform With Reflectors |
Rear shock absorber | Not Available |
Saddle seat | Hotrock ATB |
Seat post extension | 25.4 (millimeters) Diameter Hi Ten |
Specialized Hotrock 20 Coaster picture
Hotrock 20 Coaster bike comparison


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Specialized Hotrock 20 Coaster bike review
Specialized produced the Hotrock 20 Coaster bike in 2006 and can be classified as a Youth bicycle, this exact model costs in american market arround $170.00.
Specialized Youth Hotrock 20 Coaster can be found in one single color which is Not found.
This bike is equiped with 20 x 2.125" Specialized Roller tires and UCP spoke wheel while the rims are manufactured by Alex, 36-hole. Specialized equiped this exact model with Coaster brake rear braking system and Front: Joy-Tech, steel nutted axle, Rear: Joy-Tech, coaster, steel nutted axle hubs.
To guarantee the comfiest ride Specialized used Hi-tensile steel material for the frame. Hi-Ten 2pc high strength material is used on the handlebar of this Hotrock 20 Coaster to ensure the perfect handling while the stems are made of Alloy A-Head.
For the smoothest biking experience 1-piece steel, 36 teeth is used on this bicycle linked to KMC Z 410 chain that is easily replaceable as stated by Specialized.