The ultimate shift spring, developed and extensively tested by the masterminds of Casa Performance.
Compared to an original Innocenti spring, it is 25% harder.
The result is better gear selection and strong enough to hold the shifter in place without making gear changes too hard.
Unlike most tuning springs that tend to make shifting too stiff or too hard, these Casa Performance springs are a perfect compromise between better gear selection, keeping the shifter in gear, and still providing excellent usability for the rider.