What is the International Standard (IS)?
International Standard (IS):
The hub has 6 threaded holes to accommodate the screws that attach the brake disc to the hub. The brake disc also has 6 holes so that this system works. A brake calliper is usually mounted with screws at a right angle (90°) to the frame.
- On IS2000, the fastening screws are parallel to the axis of the wheels.
- With Postmount, the fastening screws are parallel to the direction of travel.
Relevant articles:
Adjust V-Break