Robinson DEFENDER 1999 VS Eastern Bikes THUNDERBIRD 2008 specs comparison
Robinson Defender
General Infos| Model | Defender |
| Manufacturer | Robinson |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
-Graphite |
| Sizes |
- Boys |
| Sizes |
- Boys |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.75 (inches) Tioga Comp III Front: 20 X 2.125 (inches) Tioga Comp III |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro Linear-pull Rear Levers Tektro Linear-pull Rear Brakes |
| Hubs for disc brakes | GT Mohawk |
| Rims manufacturer | Weinmann ZAC-X |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Steel |
Frame and Body Specs
| Frame materials | 6061 T6 Aluminum |
| Frame type | Welded |
| Handlebar construction | Dyno Expert |
| Handlebar extender | Not Available |
| Handlebar stem details | Alloy Ahead Type |
| Headset size | 1 1/8 (inches) Threadless Aheadset SX-1 |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 44 Teeth GT 1-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Robinson Defender Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | GT |
Other Specs of Robinson Defender
| Component group sets | Not Available |
| Pedals details | GT Aluminum Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Chromoly Rails SDG Slim Jim Kevlar |
| Seat post extension | GT Aluminum Micro-adjust |
Eastern Bikes Thunderbird
General Infos| Model | Thunderbird |
| Manufacturer | Eastern Bikes |
| Year of production | 2008 |
| Current price | Check price Here ==> |
| Color choice |
- Black -Blue |
| Sizes |
- 21.5 TT (inches) |
Wheels And Breaking System
| Bike front tire | Rear: 26 X 2.10 (inches) Kenda NPJ 1052 Front: 26 X 2.35 (inches) Kenda Small Block Eight |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Tektro ML-570 Rear Levers Tektro Aquila Mechanical Disc Rear Brakes |
| Hubs for disc brakes | Rear: Eastern LB9 Front: Eastern Sealed 20 (millimeters) Disc |
| Rims manufacturer | 32-hole Rear: Kinlin BM25 Front: Wienmann HL32 |
| Spoke nipples type | Brass |
| Spoke wheel | 14ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | Eastern Steel 2.0t |
| Handlebar extender | Optional |
| Handlebar stem details | Eastern Choker |
| Headset size | 1 1/8 (inches) Internal |
Gearing Specifications
| Bicycle chain | KMC 510HX |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Spanish |
| Crankset parts and sizes | Eastern Medusa Lite 25t Teeth Eastern 3pc Raptor |
| Gear shift levers | Not Available |
| Rear gear set | 12 Teeth 1-speed |
Eastern Bikes Thunderbird Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Single Crown Magnesium and cr-mo |
| Fork type | 80 (millimeters) Travel RST Space Free |
Other Specs of Eastern Bikes Thunderbird
| Component group sets | Mountain Mix |
| Pedals details | Wellgo 313 |
| Rear shock absorber | Not Available |
| Saddle seat | Eastern Pinner |
| Seat post extension | Straight Post |
Useful links and guides ....
- To know more about this exacte bike, Robinson provided us with the latest version of its Defender bike manual
- Find All parts, tires and accessories of Robinson Defender BMX here
- Get your Eastern Bikes Thunderbird manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Eastern Bikes Thunderbird BMX here