[numbers] 2500RPM Wire diameter 5mm X Winding diameter 62.5mm X 100mm
*Though this product cannot be installed on CYGNUS X Type: 1-3 and BW'S 125 / X, if the secondary spring seat has been changed from the stock spring seat to an aftermarket spring seat or to the non-friction spring seat product code: NXC125-195 sold by KN Planning, this spring fro Type 4 can be installed on. *The stock spring seat of CYGNUS X Type: 1-3 and BW'S 125 / X is wrapped with rubber for sound and vibration control and cannot be installed. *This product is for people who can make modified bikes for racing.
[summary] KOSO releases Center Spring for CYGNUS X4 / BWS-R! [Features] The overall length, wire diameter and winding diameter of the springs have been reviewed and designed specifically for the CYGNUS X4 / BWS-R.
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