Jamis X.20 2011 VS Rocky Mountain GRIND 20 2007 specs comparison
Jamis X.20
General Infos| Model | X.20 |
| Manufacturer | Jamis |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
- monterey red and pearl white -Gloss black and stainless |
| Sizes |
- 10 (inches) |
| Sizes |
- 10 (inches) |
Wheels And Breaking System
| Bike front tire | 20 X 1.95 (inches) CST ATB |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Alloy Short Reach Levers Alloy Linear Pull Brakes |
| Hubs for disc brakes | Heavy Duty ATB With Nutted Axles |
| Rims manufacturer | 36-hole Alloy |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Nickel-plated |
Frame and Body Specs
| Frame materials | 6061 aluminum c |
| Frame type | Aluminum |
| Handlebar construction | ATB Alloy Riser |
| Handlebar extender | Optional |
| Handlebar stem details | Jamis Threadless |
| Headset size | 1 1/8 (inches) Aheadset |
Gearing Specifications
| Bicycle chain | KMC Z30 |
| Bottom bracket shell width | 68 (millimeters) |
| Bottom bracket type | 119 (millimeters) Spindle Cotterless Type 3B Axle |
| Crankset parts and sizes | 36T Teeth Forged Alloy |
| Gear shift levers | Shimano RevoShift |
| Rear gear set | 14 - 28 Teeth 7-speed |
Jamis X.20 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Shimano TX-31 |
| Fork material | Not Available |
| Fork type | 40 (millimeters) Travel Smash Suspension |
Other Specs of Jamis X.20
| Component group sets | Mountain Mix |
| Pedals details | ATB Style |
| Rear shock absorber | Not Available |
| Saddle seat | XC ATB |
| Seat post extension | 27.2 (millimeters) Diameter Alloy Pillar |
Rocky Mountain Grind 20
General Infos| Model | Grind 20 |
| Manufacturer | Rocky Mountain |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
-Black and Red |
| Sizes |
- Boys 12 (inches) |
Wheels And Breaking System
| Bike front tire | 20 X 1.95 (inches) Kenda |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro TS325 Levers Tektro J310 Brakes |
| Hubs for disc brakes | Alloy QR |
| Rims manufacturer | Alex Y-2000 |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Black |
Frame and Body Specs
| Frame materials | 6061 T6 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | RMB XC |
| Handlebar extender | Not Available |
| Handlebar stem details | RMB XC |
| Headset size | FSA |
Gearing Specifications
| Bicycle chain | KMC Z50 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | FSA Sealed |
| Crankset parts and sizes | 36 Teeth Alloy |
| Gear shift levers | Shimano Revo 6-speed |
| Rear gear set | 6-speed |
Rocky Mountain Grind 20 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Shimano FT-30 Super Short Cage |
| Fork material | Single Crown Aluminum and steel |
| Fork type | 50 (millimeters) Travel RST 200K |
Other Specs of Rocky Mountain Grind 20
| Component group sets | Shimano Mix |
| Pedals details | Big Flats |
| Rear shock absorber | Not Available |
| Saddle seat | RMB Velo |
| Seat post extension | RMB |
Useful links and guides ....
- To know more about this exacte bike, Jamis provided us with the latest version of its X.20 bike manual
- Find All parts, tires and accessories of Jamis X.20 Youth here
- Get your Rocky Mountain Grind 20 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Rocky Mountain Grind 20 Youth here