Hoffman Bikes MANTRA AL 2009 VS GT POWER SERIES JR 2011 specs comparison
Hoffman Bikes Mantra AL
General Infos| Model | Mantra AL |
| Manufacturer | Hoffman Bikes |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-Gray |
| Sizes |
- 20.85 TT (inches) |
| Sizes |
- 20.85 TT (inches) |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.95 (inches) HB Skidmark Front: 20 X 2.125 (inches) Kenda K-Rad |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Unavailable Rear Levers U-Brake Rear Brakes |
| Hubs for disc brakes | Rear: Sealed 14 (millimeters) Cassette Front: Alloy 3/8 (inches) |
| Rims manufacturer | 36-hole Rear: Alex Supra E Double Wall Front: Jalco Double Wall |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | 4130 chromoly c |
| Frame type | TIG-welded |
| Handlebar construction | HB 2-piece Full Chromoly |
| Handlebar extender | Optional |
| Handlebar stem details | Not Available |
| Headset size | 1 1/8 (inches) FSA Impact |
Gearing Specifications
| Bicycle chain | Not Available |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Mid Sealed BB |
| Crankset parts and sizes | 27 Teeth 3 Piece Tubular Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 10 Teeth 1-speed |
Hoffman Bikes Mantra AL Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | Hoffman |
Other Specs of Hoffman Bikes Mantra AL
| Component group sets | BMX |
| Pedals details | Alloy Platform |
| Rear shock absorber | Not Available |
| Saddle seat | HB Kevlar |
| Seat post extension | 25.4 (millimeters) Diameter Alloy Micro Adjust |
GT Power Series JR
General Infos| Model | Power Series JR |
| Manufacturer | GT |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
-White and blue |
| Sizes |
- Not available |
Wheels And Breaking System
| Bike front tire | 20 X 1 3/8 (inches) Kenda Small Block 8 |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Unavailable Front and Mini BMX Rear Levers Unavailable Front and Tektro 926AL Rear Brakes |
| Hubs for disc brakes | Rear: Joy Tech 21 Front: GT BMX Race |
| Rims manufacturer | 28-hole Jalco GT-02T |
| Spoke nipples type | Brass |
| Spoke wheel | 15ga. |
Frame and Body Specs
| Frame materials | 6061-T6 Aluminum |
| Frame type | Aluminum |
| Handlebar construction | GT BMX |
| Handlebar extender | Optional |
| Handlebar stem details | Mini BMX |
| Headset size | 1 (inches) Integrated Sealed |
Gearing Specifications
| Bicycle chain | KMC Z510 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Euro |
| Crankset parts and sizes | 39T Teeth Aluminum 3pc. |
| Gear shift levers | Not Available |
| Rear gear set | 16 teeth c |
GT Power Series JR Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Steel |
| Fork type | GT BMX |
Other Specs of GT Power Series JR
| Component group sets | BMX Mix |
| Pedals details | Aluminum |
| Rear shock absorber | Not Available |
| Saddle seat | GT Mini Design |
| Seat post extension | 22.2 (millimeters) Diameter Aluminum |
Useful links and guides ....
- To know more about this exacte bike, Hoffman Bikes provided us with the latest version of its Mantra AL bike manual
- Find All parts, tires and accessories of Hoffman Bikes Mantra AL BMX here
- Get your GT Power Series JR manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT Power Series JR BMX here