Dahon CLASSIC III PT631 1997 VS Burley BIRDY 3 X 7 1998 specs comparison
Dahon Classic III PT631
General Infos| Model | Classic III PT631 |
| Manufacturer | Dahon |
| Year of production | 1997 |
| Current price | Check price Here ==> |
| Color choice | -Teal |
| Sizes | - Standard size for everyone |
| Sizes | - Standard size for everyone |
Wheels And Breaking System
| Bike front tire | 16 X 1.75 (inches) |
| Bike rear tire | Not Available |
| Bike wheel size | 16 (inches) Wheels |
| Brakeset type | Steel Side-pull Calipers |
| Hubs for disc brakes | Rear: Sturmey Archer NuttedFront: Steel |
| Rims manufacturer | 28-holeSteel |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters)Steel |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Not Available |
| Handlebar extender | Not Available |
| Handlebar stem details | Not Available |
| Headset size | 1 (inches) |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 52 Teeth1-piece Steel |
| Gear shift levers | Sturmey Archer 3-speed |
| Rear gear set | 19 Teeth3-speed Internal |
Dahon Classic III PT631 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Hi-tensile Steel |
| Fork type | Dahon |
Other Specs of Dahon Classic III PT631
| Component group sets | Sturmey Archer |
| Pedals details | Victor |
| Rear shock absorber | Not Available |
| Saddle seat | Not Available |
| Seat post extension | 31.8 (millimeters) Diameter |
Burley Birdy 3 x 7
General Infos| Model | Birdy 3 x 7 |
| Manufacturer | Burley |
| Year of production | 1998 |
| Current price | Check price Here ==> |
| Color choice | -Aluminum with clearcoat |
| Sizes | - Rider can adjust manually |
Wheels And Breaking System
| Bike front tire | 18 X 1.5 (inches) Birdy Hi-Pressure |
| Bike rear tire | Not Available |
| Bike wheel size | 18 (inches) Wheels |
| Brakeset type | Dia-Compe DP-7 LeversDia-Compe VC-737 Brakes |
| Hubs for disc brakes | Rear: Sachs 3 X 7Front: Shimano Alivio |
| Rims manufacturer | 24-holeAlex DV-15 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 1.8 (millimeters) Straight GaugeStainless Steel |
Frame and Body Specs
| Frame materials | 7005 T-6 Aluminum Alloy |
| Frame type | TIG-welded |
| Handlebar construction | Tranz-X Zanzibar |
| Handlebar extender | Optional |
| Handlebar stem details | Birdy Folding Adjustable |
| Headset size | 1 1/8 (inches) Threadless Aheadset AL-2 |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches)Sachs SC-40 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 113 (millimeters) SpindleTien Hsin TH-7418 AL Sealed Cartridge |
| Crankset parts and sizes | 56 TeethDotek Pro-6 |
| Gear shift levers | Sachs Wavey |
| Rear gear set | 13 - 23 Teeth3-speed Internal X 7-speed |
Burley Birdy 3 x 7 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Shimano Deore XT SGS |
| Fork material | 7005 T-6 Aluminum Alloy |
| Fork type | Birdy Leading Arm Suspension |
Other Specs of Burley Birdy 3 x 7
| Component group sets | Birdy Mix |
| Pedals details | Wellgo WPD-95B Clipless and quill Combination |
| Rear shock absorber | 1.5 (inches) TravelBirdy Elastomer |
| Saddle seat | Velo Crossbow |
| Seat post extension | 34.7 (millimeters) DiameterBirdy Special 500 (millimeters) |
Useful links and guides ....
- To know more about this exacte bike, Dahon provided us with the latest version of its Classic III PT631 bike manual
- Find All parts, tires and accessories of Dahon Classic III PT631 Folding here
- Get your Burley Birdy 3 x 7 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Burley Birdy 3 x 7 Folding here