Jamis TYRO 2.4 2008 VS Specialized HOTROCK 20 BOYS 2009 specs comparison
Jamis Tyro 2.4
General InfosModel | Tyro 2.4 |
Manufacturer | Jamis |
Year of production | 2008 |
Current price | Check price Here ==> |
Color choice | - Gloss Black-Mean Green |
Sizes | - 24 wheel (inches) |
Sizes | - 24 wheel (inches) |
Wheels And Breaking System
Bike front tire | 24 X 1.95 (inches) CST ATB |
Bike rear tire | Not Available |
Bike wheel size | 24 (inches) Wheels |
Brakeset type | Alloy Short Reach LeversAlloy Linear Pull Brakes |
Hubs for disc brakes | Quick Release |
Rims manufacturer | Alloy |
Spoke nipples type | Not Available |
Spoke wheel | Not Available |
Frame and Body Specs
Frame materials | 7005 aluminum c |
Frame type | TIG-welded |
Handlebar construction | ATB Tapered |
Handlebar extender | Not Available |
Handlebar stem details | Jamis |
Headset size | 1 1/8 (inches) Threadless AheadSet |
Gearing Specifications
Bicycle chain | 1/2 X 3/32 (inches)KMC Z51 |
Bottom bracket shell width | 68 (millimeters) English |
Bottom bracket type | Cotterless |
Crankset parts and sizes | 24/34 TeethAlloy Cotterless |
Gear shift levers | SRAM MRX |
Rear gear set | 13 - 28 Teeth7-speed |
Jamis Tyro 2.4 Fork System Data
Derailleur (Front) | Top-pull and clamp-onShimano TZ30 |
Derailleur (Rear) | Shimaon TX30 |
Fork material | Single |
Fork type | 45 (millimeters) TravelJamis Suspension |
Other Specs of Jamis Tyro 2.4
Component group sets | Mountain Mix |
Pedals details | ATB Style |
Rear shock absorber | Not Available |
Saddle seat | Jamis Jump |
Seat post extension | 27.2 (millimeters) DiameterAlloy Micro-adjust |

Specialized Hotrock 20 Boys
General InfosModel | Hotrock 20 Boys |
Manufacturer | Specialized |
Year of production | 2009 |
Current price | Check price Here ==> |
Color choice | - Gloss Black Green- Gloss Silver and Red- Gloss White and Black-Gloss Black and Yellow |
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 Linear Pull |
Hubs for disc brakes | Rear: Forged AlloyFront: Alloy Nutted |
Rims manufacturer | 32-holeAlex C-1000 |
Spoke nipples type | Not Available |
Spoke wheel | 14ga. UCP |
Frame and Body Specs
Frame materials | Specialized A1 Premium Aluminum |
Frame type | TIG-welded |
Handlebar construction | Hi-Ten Riser |
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 Z50 |
Bottom bracket shell width | 68 (millimeters) |
Bottom bracket type | 128 (millimeters) SpindleVP |
Crankset parts and sizes | 36 TeethSugino With Chainguide |
Gear shift levers | Twist-shift |
Rear gear set | 6-speed |
Specialized Hotrock 20 Boys Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Single CrownSteel and aluminum |
Fork type | 50 (millimeters) TravelRST Capa C20 |
Other Specs of Specialized Hotrock 20 Boys
Component group sets | Mountain Mix |
Pedals details | Composite |
Rear shock absorber | Not Available |
Saddle seat | Specialized |
Seat post extension | 27.2 (millimeters) DiameterAlloy Micro Adjust |
Useful links and guides ....
- To know more about this exacte bike, Jamis provided us with the latest version of its Tyro 2.4 bike manual
- Find All parts, tires and accessories of Jamis Tyro 2.4 Youth here
- Get your Specialized Hotrock 20 Boys manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Hotrock 20 Boys Youth here