Dahon Rock Hard XT612 1999 Technical specs and features
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| Brand | Dahon |
| Model | Rock Hard XT612 |
| First production | 1999 |
| Bike category | Folding |
| Bike sub-category | Folding |
| Bike Pricing | See price on Amazon |
| Parts And Accessories | Dahon Rock Hard XT612 Parts |
| Available Sizes | - 17 (inches) / 43.18 (cm)- 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-holeAluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | Straight GaugeSteel |
Frame and Body Specifications
| 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 Specs
| 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 TeethDotek |
| Gear shift levers | Grip Shift MRX-100 |
| Rear gear set | 14 - 28 Teeth7-speed |
Dahon Rock Hard XT612 Fork System Data
| Derailleur (Front) | Bottom-pullShimano 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 |
| Available colors | - Red |
| Weight | 32.0 |
| Pedals details | Resin |
| Rear shock absorber | Not Available |
| Saddle seat | Not Available |
| Seat post extension | 25.8 (millimeters) DiameterKalloy Aluminum |
Dahon Rock Hard XT612 picture
Rock Hard XT612 bike comparison
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Dahon Rock Hard XT612 bike review
Dahon produced the Rock Hard XT612 bike in 1999 and can be classified as a Folding bicycle, this exact model costs in american market arround $349.00.Dahon Folding Rock Hard XT612 can be found in one single color which is Red.
This bike is equiped with 26 x 1.95" tires and Steel spoke wheel while the rims are manufactured by Aluminum, 36-hole. Dahon equiped this exact model with Vanguard linear-pull braking system and Alloy hubs.
To guarantee the comfiest ride Dahon used Hi-tensile steel material for the frame. .
For the smoothest biking experience Dotek, 24/34/46 teeth is used on this bicycle linked to KMC HP-20 chain that is easily replaceable as stated by Dahon, the whole system is connected to a high reliability Grip Shift MRX-100 gear shift levers.