Dahon ROCK HARD XT612 1999 VS Bike Friday AIRFRIDAY PARIS-BREST-PARIS 1997 specs comparison
Dahon Rock Hard XT612
General Infos| Model | Rock Hard XT612 |
| Manufacturer | Dahon |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
-Red |
| Sizes |
- 17 (inches) |
| Sizes |
- 17 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 1.95 (inches) |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Vanguard Linear-pull |
| Hubs for disc brakes | Alloy |
| Rims manufacturer | 36-hole Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | Straight Gauge 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) KMC HP-20 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 24/34/46 Teeth Dotek |
| Gear shift levers | Grip Shift MRX-100 |
| Rear gear set | 14 - 28 Teeth 7-speed |
Dahon Rock Hard XT612 Fork System Data
| Derailleur (Front) | Bottom-pull Shimano Tourney TY-22 Top-swing |
| Derailleur (Rear) | Shimano Tourney TY-22 |
| Fork material | Not Available |
| Fork type | Not Available |
Other Specs of Dahon Rock Hard XT612
| Component group sets | Shimano Tourney TY-22 |
| Pedals details | Resin |
| Rear shock absorber | Not Available |
| Saddle seat | Not Available |
| Seat post extension | 25.8 (millimeters) Diameter Kalloy Aluminum |
Bike Friday AirFriday Paris-Brest-Paris
General Infos| Model | AirFriday Paris-Brest-Paris |
| Manufacturer | Bike Friday |
| Year of production | 1997 |
| Current price | Check price Here ==> |
| Color choice |
- black cherry - black diamond - blue - candy apple red - champagne - cream soda -Black |
| Sizes |
- Custom |
Wheels And Breaking System
| Bike front tire | 20 X 1 1/8 (inches) IRC Roadlite EX |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Shimano 105SC Levers Shimano 105SC Dual Pivot Brakes |
| Hubs for disc brakes | Shimano 105SC |
| Rims manufacturer | 36-hole Sun Rims CR18 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Marwi Stainless Steel |
Frame and Body Specs
| Frame materials | 4130 Chromoly and 3Al and 2.5V Titanium |
| Frame type | TIG-welded |
| Handlebar construction | Bike Friday Drop |
| Handlebar extender | Not Available |
| Handlebar stem details | Bike Friday |
| Headset size | 1 1/4" c |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Sachs SC-M55 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 107 (millimeters) Spindle Shimano BB-UN52 |
| Crankset parts and sizes | Shimano 105SC |
| Gear shift levers | Shimano 105SC STI Dual Control |
| Rear gear set | 11 - 21 Teeth 8-speed |
Bike Friday AirFriday Paris-Brest-Paris Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 28.6 (millimeters) Shimano 105SC |
| Derailleur (Rear) | Shimano 105SC SS |
| Fork material | Unicrown Crown 4130 Chromoly |
| Fork type | Bike Friday |
Other Specs of Bike Friday AirFriday Paris-Brest-Paris
| Component group sets | Shimano 105SC |
| Pedals details | Optional |
| Rear shock absorber | 4.0 (inches) Travel Titanium Suspension Beam |
| Saddle seat | Optional |
| Seat post extension | 27.0 (millimeters) Diameter Kalloy Uno |
Useful links and guides ....
- To know more about this exacte bike, Dahon provided us with the latest version of its Rock Hard XT612 bike manual
- Find All parts, tires and accessories of Dahon Rock Hard XT612 Folding here
- Get your Bike Friday AirFriday Paris-Brest-Paris manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Bike Friday AirFriday Paris-Brest-Paris Folding here