15+ FZ-07 Linear Rate Fork Spring Kit


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The FZ-07’s fork springs are designed for a rider weighing about 190-210 lbs in gear on the road.  If you’re outside that weight range or ride aggressively on the street or track, a different spring rate is likely in order.  Manufactured by Sonic Springs right here in the USA and available in a variety of rates.

You’ll need to use the included plastic tubing to make new spacers  Simply add 5 mm of length as compared to the stock spacer and you’re all set.  If you’re ordering a heavier spring than 0.90 kg/mm, we highly recommend 15 wt fork oil.

Contact us for assistance in selecting a spring rate and oil weight.


Additional information

Weight 3.0 lbs
Dimensions 14 × 6 × 6 in
Fork Spring Rate

0.70 kg/mm, 0.75 kg/mm, 0.80 kg/mm, 0.85 kg/mm, 0.90 kg/mm, 0.95 kg/mm, 1.0 kg/mm, 1.05 kg/mm, 1.1 kg/mm


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