50mm Clincher

38mm Clincher

24mm Clincher

50mm Tubular

Characteristics :
All GD² (GD Square) rims are accomplished by high precision proseccing at our own manufacturing factory in Japan.
You can feel its characteristics when you stop pedaling. GOKISO engineers reconsidered the basic of a bicycle design by comparing the bicycle to a machine. The pedaling power is delivered to the chain and hub, and then these energies become the driving force to the tires. In this process, we focused on "How we minimizes the loss of delivering power?". A radically new wheel was born from GOKISO’s original incentive approach. You can feel the acceleration even when you stop pedaling. The sensation of gliding on ice. GOKISO provides a new experience.
GRAPHIC The graphic on the rims are designed from high speed rotation jet engine. This graphic employed reflective material and provides safer ride at dark.

This "reversal idea" is to maximize the efficiency of the wheel's rotation.
GOKISO GD² (square) Wheel is not a "ultra-light wheel". Of course the low-mass has a low inertial force. However, the wheel without rigidity gets deformed by the rider's weight and additional load. The GOKISO GD2 Wheel absorbs these loads, and maximizes the driving power by keeping its shape. "The shock absorbing structure" in the GOKISO Hub absorbs the vibration that is transmitted through hard rims from the road surface. Through this structure, the GOKISO hub shuts down the vibration to bearings. Therefore it provides a smooth riding experience.
Turning performance.
GOKISO GD2 (square) Wheel also performs its unique ability at cornering. Our original design of GOKISO GD2 Full Carbon Wide Clincher rims' bead hook fits the tire beads with no gaps and keep the round shape of tires. This achieved to provide you a stable cornering.
GOKISO Wheel set
Wheel Front / Rear set Rim height Spoke H Weight
GOKISO Wheel Super Climber
Full carbon Tubular
50mm 20 / 24H 50mm : 814 / 906 g
GOKISO GD² Wheel Super Climber
Full Carbon Clincher
24, 38, 50 mm 20 / 24H 24mm : 828 / 1,071 g
38mm : 890 / 1,134 g
50mm / 956 / 1,189 g
GOKISO Wheel Climber S-spec
Full carbon Tubular
50mm 20 / 24 H 50mm 786 / 862 g
GOKISO GD² Wheel Climber S-spec
Full Carbon Clincher
24, 38, 50 mm 20 / 24H 24mm : 800 / 1,026 g
38mm : 862 / 1,090 g
50mm / 928 / 1,145 g
Full carbon Tubular
50mm 20 / 24 H *50mm : 824 / 916 g
Full Carbon Clincher
24, 38, 50 mm 20 / 24H 24mm : 838 / 1,081 g
*38mm : 900 / 1,144 g
50mm / 966 / 1,199 g
* UCI certified.