12.4
Average Watt Saving
200
Grams (40cm)
2
Rigidity
Not just another aero bar, the Sacra Ace bar is a ground breaking design. A streamlined, wing-shaped design that looks sharp and solid. The upper handle wing cross section upper surface is flat and the rear end is slightly cut while the lower handle adopts an irregular cam tail shape. For a sharp design while enhancing the aero effect. (9 minutes in)
Section No. 1
Designed By Yoshitada Tanaka
Yoshitada Tanaka is a Graduate of the Department of Mechanical Engineering Tokyo University. He was a part of the Shimano R&D team in Osaka, Japan.
Section No. 2
Double handle rigidity
The handle rigidity has been doubled by increasing the wing cross section and wing width of the upper handle. You will not feel any deflection.
Section No. 1
No Bar Tape Required!
The lower handle is non-slip and has a tapeless design. Since bar tape is not required, the weight can be reduced by about 30 to 50 g compared to the conventional model, and the total weight is equivalent to an ultra-light handle. In addition, the aero effect has been enhanced by adopting a bar tapeless design. It is also designed to be beautiful when tapeless.
Section No. 2
Watt Savings
The wind speed was 48 [km / h], and the angle of the bike was set to ± 12 ° every 2 ° to measure the air resistance of the bike. On average, the resistance was reduced by 12.4 [watt], and good results were obtained even with the bar tape attached. The effect of the aero wheel is about 15 [watt], so you can get an effect similar to an aero wheel. This makes it possible to experience the aero effect not only at high speeds but also at low speeds. If you hold your hand behind the steering wheel while driving, you can clearly see that the air turbulence is about 1/4. A top-of-the-line component with improved watt cost effectiveness.
