Burley BIRDY 3 X 7 1998 VS Co-Motion CUSTOM MOUNTAIN BTC 1997 specs comparison
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 |
| 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 | Rear: Sachs 3 X 7 Front: 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 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) Spindle Tien Hsin TH-7418 AL Sealed Cartridge |
| Crankset parts and sizes | 56 Teeth Dotek Pro-6 |
| Gear shift levers | Sachs Wavey |
| Rear gear set | 13 - 23 Teeth 3-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) Travel Birdy Elastomer |
| Saddle seat | Velo Crossbow |
| Seat post extension | 34.7 (millimeters) Diameter Birdy Special 500 (millimeters) |
Co-Motion Custom Mountain BTC
General Infos| Model | Custom Mountain BTC |
| Manufacturer | Co-Motion |
| Year of production | 1997 |
| Current price | Check price Here ==> |
| Color choice |
- bronze - chrome yellow - cream - custom - green metallic - red -Blue |
| Sizes |
- Custom |
Wheels And Breaking System
| Bike front tire | 26 X 1.95 (inches) IRC PiranhaPro |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano Deore XT Levers Shimano Deore XT V-Brake Brakes |
| Hubs for disc brakes | Shimano Deore XT |
| Rims manufacturer | 32-hole Mavic 238 |
| Spoke nipples type | Alloy Nipples |
| Spoke wheel | 2.0 (millimeters) Double Butted Wheelsmith Stainless Steel |
Frame and Body Specs
| Frame materials | Reynolds 531 |
| Frame type | TIG-welded |
| Handlebar construction | Syncros Hardcore |
| Handlebar extender | Optional |
| Handlebar stem details | Co-Motion Chromoly |
| Headset size | 1 1/8 (inches) Threadless Dia-Compe Kontak Aheadset DL-2 |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Shimano CN-HG71 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | Shimano BB-UN71 |
| Crankset parts and sizes | 22/32/42 Teeth Shimano Deore XT |
| Gear shift levers | Grip Shift SRT-600 |
| Rear gear set | Optional Of Gearing 8-speed |
Co-Motion Custom Mountain BTC Fork System Data
| Derailleur (Front) | Top-pull and clamp-on 28.6 (millimeters) Shimano Deore XT Top-swing |
| Derailleur (Rear) | Shimano Deore XT SGS |
| Fork material | Triple-clamp Crown Magnesium |
| Fork type | Rock Shox Indy XC |
Other Specs of Co-Motion Custom Mountain BTC
| Component group sets | Shimano Deore XT |
| Pedals details | Optional |
| Rear shock absorber | Not Available |
| Saddle seat | Titanium Rails Selle San Marco Strada |
| Seat post extension | 26.8 (millimeters) Diameter Ritchey Expert |
Useful links and guides ....
- To know more about this exacte bike, Burley provided us with the latest version of its Birdy 3 x 7 bike manual
- Find All parts, tires and accessories of Burley Birdy 3 x 7 Folding here
- Get your Co-Motion Custom Mountain BTC manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Co-Motion Custom Mountain BTC Folding here