GT POWER SERIES ULTRA BOX 2009 VS Mirraco UNDERBOSS 2008 specs comparison
GT Power Series Ultra Box
General Infos| Model | Power Series Ultra Box |
| Manufacturer | GT |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-White and Black |
| Sizes |
- 21 TT (inches) |
| Sizes |
- 21 TT (inches) |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.75 (inches) Kenda Small Block Eight Front: 20 X 2.10 (inches) Kenda Small Block Eight |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro BX-2 Sabre Rear Levers Tektro BX-25 Rear Brakes |
| Hubs for disc brakes | Rear: Joy Tech BMX Cassette Front: GT Aluminum Sealed |
| Rims manufacturer | 36-hole Alex Supra Dome |
| Spoke nipples type | Aluminum Nipples |
| Spoke wheel | 14ga. |
Frame and Body Specs
| Frame materials | 6061-T6 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | GT BMX Race |
| Handlebar extender | Optional |
| Handlebar stem details | GT BMX Race |
| Headset size | 1 1/8 (inches) FSA Orbit Z |
Gearing Specifications
| Bicycle chain | KMC Z610HX |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | TruVativ Gigapipe DH ISIS |
| Crankset parts and sizes | 44 Teeth TruVativ Racing Team |
| Gear shift levers | Not Available |
| Rear gear set | 13 14 15 16 17 18 Teeth 1-speed |
GT Power Series Ultra Box Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Aluminum and chromoly Steerer |
| Fork type | GT BMX |
Other Specs of GT Power Series Ultra Box
| Component group sets | BMX |
| Pedals details | GT Alum Platform With Cr-mo Spindles |
| Rear shock absorber | Not Available |
| Saddle seat | SDG I-Fly |
| Seat post extension | SDG I Fly |
Mirraco UnderBoss
General Infos| Model | UnderBoss |
| Manufacturer | Mirraco |
| Year of production | 2008 |
| Current price | Check price Here ==> |
| Color choice |
- Deep Blue -Steel Gray |
| Sizes |
- Standard size for everyone |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.95 (inches) CST Dirt Front: 20 X 2.125 (inches) CST Dirt |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro 289 Rear Levers Tektro U-brake Rear Brakes |
| Hubs for disc brakes | Rear: Coaster Brake Front: 3/8 (inches) Axle |
| Rims manufacturer | 36-hole Alex C-303 |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | Mirraco 2-piece |
| Handlebar extender | Optional |
| Handlebar stem details | M3 Alloy |
| Headset size | 1 1/8 (inches) VP A-71 |
Gearing Specifications
| Bicycle chain | KMC Z410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | American |
| Crankset parts and sizes | 38 Teeth 152 (millimeters) 1-piece |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Mirraco UnderBoss Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | Mirraco |
Other Specs of Mirraco UnderBoss
| Component group sets | BMX |
| Pedals details | Wellgo Resin |
| Rear shock absorber | Not Available |
| Saddle seat | M3 8 (millimeters) Rails |
| Seat post extension | 25.4 (millimeters) Diameter Steel |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Power Series Ultra Box bike manual
- Find All parts, tires and accessories of GT Power Series Ultra Box BMX here
- Get your Mirraco UnderBoss manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Mirraco UnderBoss BMX here