Burley BIRDY 7 1998 VS Dahon HELIOS SL 2003 specs comparison
Burley Birdy 7
General Infos| Model | Birdy 7 |
| Manufacturer | Burley |
| Year of production | 1998 |
| Current price | Check price Here ==> |
| Color choice |
-Metallic emerald green |
| Sizes |
- Rider can adjust manually |
| 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 Levers Dia-Compe VC-737 Brakes |
| Hubs for disc brakes | Shimano Alivio |
| Rims manufacturer | 24-hole Alex DV-15 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 1.8 (millimeters) Straight Gauge Stainless 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 STS |
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) Spindle Tien Hsin TH-7418 AL Sealed Cartridge |
| Crankset parts and sizes | 56 Teeth Dotek Pro-6 |
| Gear shift levers | Grip Shift SRT-400 |
| Rear gear set | 11 - 28 Teeth 7-speed |
Burley Birdy 7 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Shimano STX-RC |
| Fork material | 7005 T-6 Aluminum Alloy |
| Fork type | Birdy Leading Arm Suspension |
Other Specs of Burley Birdy 7
| Component group sets | Birdy Mix |
| Pedals details | Victor VP-195 |
| Rear shock absorber | 1.5 (inches) Travel Birdy Elastomer |
| Saddle seat | Velo Crossbow |
| Seat post extension | 34.7 (millimeters) Diameter Birdy Special 500 (millimeters) |
Dahon Helios SL
General Infos| Model | Helios SL |
| Manufacturer | Dahon |
| Year of production | 2003 |
| Current price | Check price Here ==> |
| Color choice |
-Polished |
| Sizes |
- Small |
Wheels And Breaking System
| Bike front tire | 20 X 1.50 (inches) Primo Comet |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Promax Levers ProMax Linear-pull Brakes |
| Hubs for disc brakes | American Classic |
| Rims manufacturer | 28-hole Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | Butted Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Aluminum |
| Handlebar extender | Optional |
| Handlebar stem details | Dahon Folding |
| Headset size | 1 (inches) Steel |
Gearing Specifications
| Bicycle chain | 1/2 X 3/16 (inches) KMC |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | Aluminum |
| Gear shift levers | SRAM 9.0 |
| Rear gear set | 8-speed |
Dahon Helios SL Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | SRAM ESP 9.0 |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | Not Available |
Other Specs of Dahon Helios SL
| Component group sets | Folding Mix |
| Pedals details | Folding |
| Rear shock absorber | Not Available |
| Saddle seat | Not Available |
| Seat post extension | Dahon Carbondate |
Useful links and guides ....
- To know more about this exacte bike, Burley provided us with the latest version of its Birdy 7 bike manual
- Find All parts, tires and accessories of Burley Birdy 7 Folding here
- Get your Dahon Helios SL manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Dahon Helios SL Folding here