山地牙盘（曲柄）
E-Bones W 498g（单独曲柄重量）
New generation E-Bones: a huge increase in performance and bearing durability.
E-Bones W 498g（单独曲柄重量）
New generation E-Bones: a huge increase in performance and bearing durability.
新浪博客
Developed with our hyper-accurate dimensioning, they include our proprietary design:
Stress Split Profile
That means hi-torsional rigidity with unmatched weight.
How does it work?
Torsional and bending stresses are splitted into separate crank areas enhancing rigidity/mass ratio in every pedalling phase.
Weight: 498*gr/set
Sizes: 175 or 172.5mm.
Bearings: external 30 42.
Spider: standard 104mm / 64mm.
Finishing: black anodized.
Q-factor: 160mm with BSA 68 BB shell.
Spindle: integrated 22mm axle.
Graphics: laser etched.
Option: Hybrid ceramic bearings.
* Cranks weight with complete BB assembly for BSA68 and BB30 model.
E-Bones W are avaiable for different BB shells.
| Model |
Q
factor |
Chainline |
Compatibility |
| E-Bones W Bsa68 |
160 mm |
48.7 mm |
BSA68mm |
| E-Bones W Bsa68/73 |
165 mm |
51.2 mm |
BSA68mm, BSA68mm + type E derailleur, BSA 73mm (not compatible with BSA73mm + type E derailleur). |
| E-Bones W BB30 68 |
160 mm |
48.7 mm |
BB30 68mm wide |
| E-Bones W BB30 73 |
165 mm |
51.2 mm |
BB30 73mm wide |
| E-Bones W SW-OS |
160 mm |
48.7 mm |
Specialized S-Works OS Press fit frame shells 84.5mm wide 68.5mm bearing to bearing |
Please specify BB details at your ordering.
Hyper accurate Finite Element structure analysis minimizes