Widely regarded as a weak point in the Sport Classic range, the stock fork springs leave quite a bit to be desired.

Enter the Netherland's Hyperpro Suspension, a recognized leader in high-performance motorcycle suspension components.  Their progressively-wound fork springs are direct replace/drop-in parts. 

The kit includes two (2) springs, one (1) bottle of Hyperpro 15wt fork oil, Hyperpro Suspension Tuning Guide and decals.

Spring Rate:  8.02 to 13.12 N/mm

Fits all Sport Classic models. Sold as a kit.