Hoffman Bikes MANTRA AL 2009 VS Bontrager B1 1998 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 |
Bontrager B1
General Infos| Model | B1 |
| Manufacturer | Bontrager |
| Year of production | 1998 |
| Current price | Check price Here ==> |
| Color choice |
-Chrome-plated |
| Sizes |
- Expert - Pro - Pro XL |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.75 (inches) Kenda K-50 Comp III Type Front: 20 X 2.125 (inches) Kenda K-50 Comp III Type |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro Levers Tektro Linear-pull Rear Brakes |
| Hubs for disc brakes | Formula Aluminum |
| Rims manufacturer | 36-hole Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Steel |
Frame and Body Specs
| Frame materials | True Temper Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | Chromoly |
| Handlebar extender | Not Available |
| Handlebar stem details | Bontrager Aluminum |
| Headset size | 1 1/8 (inches) Threadless Aheadset |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) Taya 400 |
| Bottom bracket shell width | American 24tpi |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 44 Teeth 1-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Bontrager B1 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | Bontrager |
Other Specs of Bontrager B1
| Component group sets | Not Available |
| Pedals details | Aluminum Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager |
| Seat post extension | 27.0 (millimeters) Diameter Bontrager |
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 Bontrager B1 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Bontrager B1 BMX here