Compatible models:
Grand Axis 100
BWS100
RX100

Kit Contents:
pulley
lamp plate
Drive Face
Weight Rollers (7.5g) x 6
3 x Slide Pieces

Note:
This kit is modified parts for professionals.
Washers that have a thin drive face of 0.06 inch (1.5 mm) or more are required.
Cannot be attached as is. We recommend buying washers at the same time.
Installation requires a set to prevent interference with the kick gear.
Adjustment is required to position where the drive face can be firmly fixed.
If you put too much washers, etc., the crankshaft will be damaged.
The weight roller can be used for YAMAHA 0.6 inch (15 mm) diameter (0.6 inch (12 mm)).
Cannot be used with genuine rollers.
We have modified the normal pulley of KOSO, and this is not the regular "KOSO High Speed Pulley". So unlike the ground axis 100 pulley.

The thin drive face makes it easy to drop the belt and adjust the washer on the pulley side or the back of the lumplate.
Recommended for those who pursue even better.