Progressive spring for BD11 1.80～2.10 20mm

It is a new spring that matches BD11 with a lower lever ratio than before. Overall, it has a soft setting, and it goes well with the long suspension arm of BD11. By choosing from this lineup for the front and back, you can find a good balance.

It is a progressive type that changes the pitch during winding, and the initial suppleness brings out a soft feel of operation, making it easy to aim the line, especially at the entrance of corners. Compared to the BD11 standard spring, push-under is reduced, so cornering with a high grip feeling is possible even on asphalt roads.