Aero Optim Series

Wind Tunnel System for Bicycles

Complete system image

Usage demonstration (Italy)

Usage demonstration (Tokyo sales office)

Aero test of a bicycle

TT bicycle fixture example

Test of a triathlete

Description

The Aero Optim enables precise aerodynamic measurements of bicycles in a space as small as a corner of a room. The system can be used for a wide range of applications in the cycling industry, including measurement of the bicycle itself and on-board accessories, form aerodynamics while the cyclist is riding and pedaling, and evaluation of clothing, helmets and eyewear using mannequins. The fixture accommodates through-axle or quick-release types, and the wheelbase can be easily adjusted.

Specs

Table 1. Specification of Wind Tunnel

Model name	Aero Optim 21J/21E
Wind speed	1～15 m/s (3.6～54 km/h)
Wind speed distribution	Within ±8％ per unit¹
Wind speed fluctuation	Within 1% per unit²
Exit area	630 width x 630 height [mm]
Unit size	1470 length x 686 width x 683 height [mm]
Fan	7.5 kW IPM motor axial fan
Noise	105 dB¹
Weight	160 kg
Power	3 phase 200 VAC 50/60 Hz

¹At rated fan speed: 2500 rpm
²Measured by dividing average wind speed from standard deviation at the outlet center

Table 2. Specification of Measurement Table

Model name	Bicycle Measuring Table 2020J
Measurements	wind speed and drag
Dimensions	706 width x 270 height (fixtures omitted) x 1962 length [mm]
Maximum weight capacity	120 kg (bicycle + rider)
Measurement resolution	0.1 g (sensor), 1/0.1N (minimum value)¹
Weight	150 kg
Wheel size	700C (standard)
Wheelbase	adjustable up to 1080 mm
Compatible axles	quick release, through axle
Measurable while pedaling	yes (using rollers for the rear wheel)