1. Peaked wheel rim.
2. Power brake system is available.
3. For disk brake.
1. Etrto: 20 x 559, 20 x 622. 2. Spokes: 32H, 36H. 3. Alloy: aluminum 6061-T6. 4. Valve: F.V. / A.V. 5. Size: 26 x 1.5, 700C. 6. Colors: silver, satin, black, titanium, hard anodizing.